CN105109830A - Packaging method for adult monochamus alternatus attractant lure core - Google Patents

Abstract

Aiming at the defect that the existing chrysalis adult attractant lure core needs to be stored at low temperature, the invention provides a packaging method for the monochamus adult attractant lure core. Specifically: sealed packaging with PA/PE co-extruded film, or sealed packaging with PA/EVOH/PA/PE co-extruded film, or sealed packaging with PE/PVDC/PE co-extruded film, or sealed packaging with PE/PVDC/PA/EVOH /PA/PE co-extruded film for sealed packaging, or first use PA/EVOH/PA/PE co-extruded film for sealed packaging, and then use PE/PVDC/PE co-extruded film for secondary sealed packaging. The lures packaged by this method do not need low-temperature preservation, and the validity period of storage at room temperature is not less than 10 months, and the packaging method is simple and low in cost, which is very convenient for long-distance transportation and long-term storage of attractant lures, greatly reducing the Costs of trapping and controlling Monochamus alternata.

Description

A kind of packing method of attractant lure core of monochamus alternatus adult

technical field

The invention relates to a packaging method for an insect attractant lure core, and more particularly relates to a packaging method for an adult montina monochamus adult attractant lure core.

Background technique

Pine wood nematode disease, also known as "pine cancer", is a devastating disease of pine trees, which can cause the affected pine trees to wither and die in a short period of time. According to statistics, since 1982, the direct economic loss caused by pine wood nematode in my country has exceeded 50 billion yuan. So far, pine wood nematode disease has caused serious harm in the Yangtze River Basin and most provinces south of my country, and it is spreading rapidly, posing a huge threat to the safety of my country's forest ecological environment.

Monochamus alternata, also known as Monochamus monochamus, is the main vector insect of pine wood nematode in my country. So far, controlling the monochamus and cutting off the transmission route of the disease is still one of the most effective methods for controlling pine wood nematode in my country. For a long time, monitoring and controlling Monochamus alternatus with adult attractants has been one of the main measures for the prevention and control of pine wood nematode disease in my country. Installing the attractant lure core on the trap and hanging it in the pine forest to trap the adult chrysalis monochamus can effectively monitor and control the pine brown monochamus, and inhibit the spread of pine wood nematode disease.

Since the active ingredients of the adult attractants of Monochamus alternata are highly volatile, and the dosage of the attractant liquid for a single lure is large, the loss of the active ingredients of the attractant is easy to occur during the transportation and storage of the lure , leading to the reduction of the field insect trapping effect of the lure core, or even failure. At present, there are mainly two methods to solve this problem: one is to keep the attractant lures frozen during the transportation and storage process. This method can effectively maintain the insect-attracting effect of the attractant lures. The cost is high, and special refrigeration equipment is needed. Some remote mountainous areas cannot effectively store and use attractants to prevent and control pine beetle due to the lack of special refrigeration equipment; the second is to use aluminum-plastic composite materials such as PA/AL/PE, PET/AL/ CPP, PA/AL/RCP and other composite film packaging lures, but in practice, it is found that because the terpenes in the attractant lure have a strong penetrating ability, and the dosage of a single lure is large, aluminum-plastic composite Material packaging and storage at room temperature for a period of time, the aluminum layer and the plastic layer are easily separated from each other, and the composite film is severely wrinkled, and the active ingredients of the attractant are seriously lost, resulting in a significant decline in the use of the lure, or even failure ; Therefore, even if it is packaged with aluminum-plastic composite materials, it still needs special equipment for frozen storage, and the storage cost is high.

Contents of the invention

In order to solve the above-mentioned problems, the present invention provides a kind of packing method of the attractant lure core of monochamus alternatus adult, the material used in this packing method is simple, the packing procedure is simple and convenient, and cost is low, can make the attractant lure core store at room temperature. The validity period reaches more than 10 months, and has the advantages of low cost, good effect and convenient use.

In order to achieve the above object, the technical scheme that the present invention takes is as follows:

A packaging method for the lure core of the adult pine beetle attractant, using PA/PE (polyamide/polyethylene) co-extrusion film, PA/EVOH/PA/PE (polyamide/ethylene-vinyl alcohol copolymer/polyamide /polyethylene) co-extrusion film, PE/PVDC/PE (polyethylene/polyvinylidene chloride/polyethylene) co-extrusion film, PE/PVDC/PA/EVOH/PA/PE (polyethylene/polyvinylidene chloride /polyamide/ethylene-vinyl alcohol copolymer/polyamide/polyethylene) co-extrusion film in one or two kinds of hermetically packaged monochamus adult attractant lures.

Preferred method 1 is to seal and package the attractant core with PA/EVOH/PA/PE co-extruded film first, and then use PE/PVDC/PE co-extruded film for secondary sealed packaging.

The second preferred method is to seal and package the attractant core with PE/PVDC/PA/EVOH/PA/PE co-extrusion film.

The thickness of the PVDC layer in the PE/PVDC/PE co-extrusion film is 5-25 microns, the thickness of the PVDC layer in the PE/PVDC/PA/EVOH/PA/PE co-extrusion film is 5-25 microns, and the PA layer The thickness is 15-30 microns.

Preferably, the thickness of the PVDC layer in the PE/PVDC/PE co-extrusion film is 15-25 microns, and the thickness of the PVDC layer in the PE/PVDC/PA/EVOH/PA/PE co-extrusion film is 15-25 microns , the thickness of the PA layer is 15-30 microns.

Preferably, the attractant lure of the present invention is prepared by adopting the technique disclosed in the patent with publication number CN102986739A, then absorbing it with absorbent cotton, and then sealing it with a polyethylene film.

The beneficial effects of the present invention are:

(1) The packaging process of the attractant lure core of the present invention is simple, the cost of materials used is low, and the packaging and storage effect is good; the PA and EVOH components used in the packaging materials have a very strong effect on the pheromone mixture and terpene compounds in the active components of the attractant. High barrier performance can effectively prevent the loss of the above two types of active ingredients; the PVDC component used in packaging materials has extremely high barrier performance to polar compounds such as water vapor and ethanol, which can prevent water vapor in the air from entering the lure, It can also better block the loss of ethanol in the lure; the PE component used in the packaging material can provide better heat sealing performance; the co-extrusion film made of the different components of the above packaging material can be used alone or in combination, which can effectively avoid The active ingredients of the attractant are lost during transportation and storage, and the separation of different component layers of the packaging material is avoided, which has obvious advantages;

(2) The attractant lure cores packaged by the present invention do not require special equipment for frozen storage during transportation and storage, and can be stored at room temperature, with a storage validity period of not less than 10 months, and are torn off when used. The outer packaging of the lure, the lure is directly hung and installed in the hollow part of the center of the chrysanthemum trap, which can trap a large number of adult chrysalis, reduce the number of dead pine trees in the epidemic area, and inhibit the spread of pine wood nematode disease Spread, and has the advantages of low cost, convenient transportation and storage.

Description of drawings

Figure 1 Mass loss (g) of attractant components in different packaging materials, A refers to the control (no packaging); B refers to packaging with PA/pure aluminum/PE composite film; C refers to packaging with PA/PE co-extrusion film; D refers to Packed with PA/EVOH/PA/PE co-extruded film; E means packed with PE/PVDC/PE co-extruded film; F means packed with PA/EVOH/PA/PE co-extruded film first, and then co-extruded with PE/PVDC/PE Film packaging; G refers to PE/PVDC/PA/EVOH/PA/PE co-extrusion film packaging;

Figure 2 The mass loss (g) of lures packaged with different thicknesses of PVDC co-extrusion film, A refers to packaging with PA/EVOH/PA/PE co-extrusion film first, and then PE/PVDC/PE co-extrusion film; B refers to PE /PVDC/PA/EVOH/PA/PE co-extrusion film packaging. Film thickness refers to the thickness (microns) of the polyvinylidene chloride layer.

Figure 3 Mass loss (g) of the lure under different thicknesses of PA co-extrusion film packaging, A refers to packaging with PA/EVOH/PA/PE co-extrusion film first, and then PE/PVDC/PE co-extrusion film packaging; B refers to PE /PVDC/PA/EVOH/PA/PE co-extrusion film packaging. Film thickness refers to the thickness (microns) of the polyamide layer.

Detailed ways

The present invention further illustrates the present invention with following examples, but protection scope of the present invention is not limited to following examples.

Example 1

1. Determination of the mass loss of each component of the adult attractant of Monochamus alternatus under different packaging methods

Preparation of attractant components: The attractant components of Monochamus alternata adults are determined according to the patent "An Attractant for Monochamus monochamus adults (publication number: CN102986739A)", including pheromone mixture, terpenes and absolute ethanol. According to the release method of the adult attractant of the monochamus alternatus, each component is absorbed with absorbent cotton, and then sealed with polyethylene film respectively. The addition amounts of the three components of pheromone mixture, terpene and absolute ethanol are 2 grams, 20 grams and 5 grams respectively.

The packaging of each component of the attractant: (1) No packaging, as a control; (2) PA/pure aluminum/PE film packaging, each component of the attractant is respectively wrapped with a polyamide-pure aluminum-polyethylene composite film (PA/ Pure aluminum/PE) airtight packaging, in which polyamide thickness is 15 microns, polyethylene thickness is 55 microns, and pure aluminum thickness is 50 microns; (3) PA/PE film packaging, each component of the attractant is respectively coated with polyamide-polyethylene Extruded film (PA/PE) sealed packaging, in which the thickness of polyamide is 15 microns, and the thickness of polyethylene is 55 microns; (4) PA/EVOH/PA/PE film packaging, the components of the attractant are respectively polyamide-ethylene-ethylene Alcohol copolymer-polyamide-polyethylene co-extrusion film (PA/EVOH/PA/PE) sealed packaging, in which the thickness of polyamide is 15 microns, the thickness of ethylene-vinyl alcohol copolymer is 15 microns, and the thickness of polyethylene is 55 microns; (5) PE/PVDC/PE film packaging, each component of the attractant is sealed and packaged with polyethylene-polyvinylidene chloride-polyethylene co-extrusion film (PE/PVDC/PE), in which the thickness of polyvinylidene chloride is 15 microns, The thickness of polyethylene is 55 microns; (6) PA/EVOH/PA/PE film and PE/PVDC/PE film are encapsulated twice, and each component of the attractant is firstly coated with polyamide-ethylene-vinyl alcohol copolymer-polyamide- Polyethylene co-extrusion film sealing package (polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), and then respectively sealed with polyethylene-polyvinylidene chloride-polyethylene co-extrusion film Packaging (polyvinylidene chloride thickness 15 microns, polyethylene thickness 55 microns); (7) PE/PVDC/PA/EVOH/PA/PE film packaging, each component of the attractant is first coated with polyethylene-polyethylene Vinyl chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film sealed packaging (PE/PVDC/PA/EVOH/PA/PE, polyethylene thickness 55 microns, polyvinylidene chloride thickness 15 microns , polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns).

Weigh each component of the above-mentioned packaged attractant (including packaging), put it in a carton and store it at room temperature for 10 months (from July 20, 2012 to May 19, 2013), 10 Measure the mass of each component (including packaging) again after 1 month, and calculate the mass loss of each component. The experiment was set to 5 repetitions. The mass loss of each component of the attractant after storage for 10 months under different packaging methods is shown in Figure 1. Figure 1 shows: (1) As far as the pheromone mixture is concerned, except for the control, the quality loss of the selected packaging methods is small, among which PA/pure aluminum/PE composite film packaging, PA/EVOH/PA/PE There is almost no quality loss under co-extrusion film and PE/PVDC/PE co-extrusion film secondary packaging, PE/PVDC/PA/EVOH/PA/PE co-extrusion film packaging, while PA/PE co-extrusion film, PA/EVOH/PA /PE co-extrusion film packaging has a slight increase in mass, which is related to the weak barrier properties of the two packaging films to water vapor; (2) As far as terpenes are concerned, PA/EVOH/PA/PE co-extrusion film and PE /PVDC/PE co-extrusion film secondary packaging, PE/PVDC/PA/EVOH/PA/PE co-extrusion film packaging with almost no quality loss, PA/PE co-extrusion film packaging, PA/EVOH/PA/PE co-extrusion film The mass under the package increased slightly, and the aluminum layer and polyethylene layer of the PA/pure aluminum/PE composite film package were all separated and delaminated after 10 months of storage, and the mass loss of terpene was large; (3) in terms of ethanol, PE/PE PVDC/PE co-extrusion film packaging, PA/EVOH/PA/PE and PE/PVDC/PE co-extrusion film secondary packaging, PE/PVDC/PA/EVOH/PA/PE co-extrusion film packaging, PA/pure aluminum/PE The quality loss under the composite film packaging is small, and there is almost no quality loss under the PA/pure aluminum/PE composite film packaging.

2. Field trap test of the attractant lures for adult chrysalis monochamus under different packaging methods

Preparation of attractant lure cores: According to the patent "An Attractant for Adult Monochamus monochamus (Publication No.: CN102986739A)", the Attractant Liquid for Adult Monochamus monochamus was prepared. Absorb 20 grams of the attractant solution with absorbent cotton and seal it with a polyethylene film to prepare the attractant lure core for the adult chrysalis monochamus.

Packaging of attractant lures: (1) No packaging, as a control; (2) PA/pure aluminum/PE film packaging, the attractant lures are sealed with polyamide-pure aluminum-polyethylene composite film, of which polyamide The thickness is 15 microns, the thickness of polyethylene is 55 microns, and the thickness of pure aluminum is 50 microns; (3) PA/PE film packaging, the attractant core is sealed and packaged with polyamide-polyethylene co-extrusion film, in which the thickness of polyamide is 15 microns, and the thickness of polyamide is 15 microns. The thickness of ethylene is 55 microns; (4) PA/EVOH/PA/PE film packaging, the attractant core is sealed with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film, in which polyamide thickness is 15 Micron, the thickness of ethylene-vinyl alcohol copolymer is 15 microns, and the thickness of polyethylene is 55 microns; (5) PE/PVDC/PE film packaging, the attractant core is sealed with polyethylene-polyvinylidene chloride-polyethylene co-extrusion film Packaging, in which the thickness of polyvinylidene chloride is 15 microns, and the thickness of polyethylene is 55 microns; (6) PA/EVOH/PA/PE film and PE/PVDC/PE film secondary packaging, the attractant lure core with polyamide-ethylene -Vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film sealing package (polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), and then polyethylene-polyethylene dichloride Ethylene-polyethylene co-extrusion film sealed packaging (polyvinylidene chloride thickness 15 microns, polyethylene thickness 55 microns); (7) PE/PVDC/PA/EVOH/PA/PE film packaging, the attractant lure core is used first Polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film sealed packaging (polyethylene thickness 55 microns, polyvinylidene chloride thickness 15 microns, polyamide thickness 15 microns , ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns). The above-mentioned 7 types of packaged lures (including unpackaged control) were stored at room temperature for 10 months (from July 26, 2013 to May 25, 2014).

The field test was carried out in Taining, Fujian Province (May 26, 2014-June 8, 2014). The trap used was made according to the patent "A Trapper for Monochamus alternatus" (public number: CN203313934U), and the above packaging And the lures stored for 10 months were unpacked and installed on the traps, and another temporarily made lure was used as a control. In the field trap test, 5 spatial repetitions were set, each treatment was randomly sorted, and the interval between adjacent traps was 80-100 meters. The number of monochamus captured by each trap was collected and counted every week. The test results are shown in Table 1.

Table 1 shows that: lures without packaging but stored for 10 months, lures packaged in PA/pure aluminum/PE and stored for 10 months (packages are all cracked) all only lured a very small amount of Alpinia monochamus, while using PA/PE co-extrusion film, PA/EVOH/PA/PE co-extrusion film, PA/EVOH/PA/PE co-extrusion film and PE/PVDC/PE co-extrusion film secondary packaging, PE/PVDC/PA/EVOH/PA /PE co-extrusion film packaging lure cores trap more pine nuts, which adopt PA/EVOH/PA/PE and PE/PVDC/PE co-extrusion film secondary packaging, PE/PVDC/PA/EVOH/ PA/PE co-extrusion film encapsulation two ways of packing the number of trapping Alchacha monochamus is more, which is the closest to the number of trapping the temporary lure. The above results show that: PA/PE co-extrusion film, PA/EVOH/PA/PE co-extrusion film, PA/EVOH/PA/PE co-extrusion film and PE/PVDC/PE co-extrusion film secondary packaging, PE/PVDC/PA /EVOH/PA/PE co-extruded film can be used as the packaging material for the attractant lure core of the adult monochamus alternatus, and the storage validity period of the attractant core for the adult monochamus alternatus packaged with the above materials is not less than 10 months. PA/EVOH/PA/PE co-extrusion film and secondary packaging of PE/PVDC/PE co-extrusion film, and PE/PVDC/PA/EVOH/PA/PE co-extrusion film packaging are the best.

Table 1 The amount of wild monochamus caught in attractant lure cores packed with different materials (head/trap)

Example 2

1. Preparation and packaging of attractant lures for adult pine beetles (PVDC films with different thicknesses)

Lure core preparation: according to the patent "An Attractant for Adult Monochamus alternatus (Publication No.: CN102986739A)", the laboratory prepared the attractant solution for Adult Monochamus alternata. Absorb 20 grams of the attractant solution with absorbent cotton and seal it with a polyethylene film to prepare the attractant lure core for the adult chrysalis monochamus.

Packaging of attractant lures: (1) PA/EVOH/PA/PE and PE/PVDC/PE co-extrusion film secondary packaging, the attractant lures are first coated with polyamide-ethylene-vinyl alcohol copolymer-polyamide- PE co-extrusion film sealing package (polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), and then polyethylene-polyvinylidene chloride-polyethylene co-extrusion film sealing packaging (The thickness of polyethylene is 55 microns), and the thickness of polyvinylidene chloride is 5 microns, 10 microns, 15 microns, 20 microns and 25 microns; (2) PE/PVDC/PA/EVOH/PA/PE co-extrusion film packaging, The attractant lure core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (thickness of polyethylene is 55 microns, thickness of polyamide is 15 microns, vinyl- The thickness of vinyl alcohol copolymer is 15 microns, the thickness of polyethylene is 55 microns), and the thickness of polyvinylidene chloride is 5 microns, 10 microns, 15 microns, 20 microns and 25 microns respectively.

The above-mentioned packaged lures were stored at room temperature for 10 months (from July 20, 2014 to May 19, 2015), and then the mass loss of the lures was measured, and field trap tests were carried out (results see Figure 2 and Table 2).

2. Determination of the mass loss of the attractant lure core of Monochamus alternatus adults under different thickness PVDC co-extrusion film packaging

Figure 2 shows the mass loss of the attractant lures after 10 months of storage in polyvinylidene chloride layer co-extruded film packages with different thicknesses. Figure 2 shows: Whether it is secondary packaging of PA/EVOH/PA/PE, PE/PVDC/PE co-extrusion film, or primary packaging of PE/PVDC/PA/EVOH/PA/PE co-extrusion film, when poly When the thickness of the vinyl chloride layer was greater than 15 microns (including 15 microns), the mass loss of the attractant liquid was significantly smaller.

3. Insect-attracting test of the attractant core of adult chrysalis monochamus under different thickness PVDC co-extruded film packaging

The field test was carried out in Taining, Fujian Province (May 20-June 3, 2015). The trap used was made according to the patent "A Trapper for Monochamus alternatus" (public number: CN203313934U). The above-mentioned packaging and storage The 10-month-old lure was unpacked and installed on the trap, and another temporarily made lure was used as a control. In the field trapping experiment, 5 spatial repetitions were set up, each treatment was randomly sorted, and the interval between adjacent traps was 80-100 meters. The number of monochamus captured by each trap was collected and counted every week. The test results are shown in Table 2.

Table 2 shows: no matter it is packaged with PA/EVOH/PA/PE, PE/PVDC/PE co-extruded film or PE/PVDC/PA/EVOH/PA/PE co-extruded film, after 10 months of storage All kinds of lures captured more monochamus, but when the polyvinylidene chloride layer thickness was greater than 15 microns (including 15 microns) co-extrusion film packaging, the number of monochamus captured by the lures was average Significantly more.

Table 2 Trapping quantity of wild monochamus alternatus in lure cores packed with PVDC co-extruded film with different thicknesses (head/trap)

Example 3

1. Preparation and packaging of lure cores for adult pine beetles (PA films with different thicknesses)

Lure core preparation: according to the patent "An Attractant for Adult Monochamus alternatus (Publication No.: CN102986739A)", the laboratory prepared the attractant solution for Adult Monochamus alternata. Absorb 20 grams of the attractant solution with absorbent cotton and seal it with a polyethylene film to prepare the attractant lure core for the adult chrysalis monochamus.

Packaging of attractant lures: (1) PA/EVOH/PA/PE and PE/PVDC/PE co-extrusion film secondary packaging, the attractant lures are first coated with polyamide-ethylene-vinyl alcohol copolymer-polyamide- PE co-extrusion film sealing packaging (ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), and then polyethylene-polyvinylidene chloride-polyethylene co-extrusion film sealing packaging (polyethylene thickness 55 microns , the thickness of polyvinylidene chloride is 15 microns), the thickness of polyamide is 15 microns, 20 microns, 25 microns and 30 microns respectively; (2) PE/PVDC/PA/EVOH/PA/PE co-extrusion film packaging, will attract The agent lure is sealed with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (thickness of polyethylene is 55 microns, thickness of polyvinylidene chloride is 15 microns, vinyl - Vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), polyamide thickness 15 microns, 20 microns, 25 microns and 30 microns respectively.

The above-mentioned packaged lures were stored at room temperature for 10 months (from July 25, 2014 to May 24, 2015), and then the quality loss of the lures was measured, and field trap tests were carried out (results see Figure 3 and Table 3).

2. Determination of the mass loss of the attractant core of Monochamus alternatus adults under different thicknesses of PA co-extrusion film packaging

Figure 3 shows the mass loss of the attractant lures after storage for 10 months in polyamide layer co-extruded film packages with different thicknesses. Figure 3 shows: Whether it is secondary packaging of PA/EVOH/PA/PE, PE/PVDC/PE co-extrusion film, or primary packaging of PE/PVDC/PA/EVOH/PA/PE co-extrusion film, with the polyamide As the thickness increases, the mass loss of the lure becomes smaller gradually, but the mass loss of the lure under various polyamide layer thicknesses (15-30 microns) is small.

3. Insect trap test of the attractant core of adult chrysalis monochamus under different thickness PA co-extrusion film packaging

The field test was carried out in Taining, Fujian Province (May 25-June 8, 2015). The trap used was made according to the patent "A Trapper for Monochamus alternatus" (public number: CN203313934U). The above-mentioned packaging and storage The 10-month-old lure was unpacked and installed on the trap, and another temporarily made lure was used as a control. In the wild insect trap experiment, 5 spatial repetitions were set up, each treatment was randomly sorted, and the interval between adjacent traps was 80-100 meters. The number of monochamus captured by each trap was collected and counted every week. The test results are shown in Table 3.

Table 3 shows that whether it is packaged with PA/EVOH/PA/PE, PE/PVDC/PE co-extrusion film, or PE/PVDC/PA/EVOH/PA/PE co-extrusion film, after 10 months of storage All kinds of lures captured more pine beetles, indicating that the polyamide layer thickness of 15-30 microns can meet the packaging requirements of attractant lures.

Table 3 Trapping quantity of wild monochamus under different thickness A co-extrusion film packaging (head/per trap)

Example 4

Lure core preparation: according to the patent "An Attractant for Adult Monochamus alternatus (Publication No.: CN102986739A)", the laboratory prepared the attractant solution for Adult Monochamus alternata. Absorb 20 grams of the attractant solution with absorbent cotton and seal it with a polyethylene film to prepare the attractant lure core for the adult chrysalis monochamus.

The attractant core is sealed and packaged with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film (polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), Then use polyethylene-polyvinylidene chloride-polyethylene co-extrusion film to seal and pack (polyethylene thickness 55, polyvinylidene chloride thickness 7 microns), store for 10 months, and get lure A.

The attractant core is sealed and packaged with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film (polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), Then use polyethylene-polyvinylidene chloride-polyethylene co-extrusion film to seal and pack (polyethylene thickness 55, polyvinylidene chloride thickness 12 microns), store for 10 months, and get lure B.

The attractant core is sealed and packaged with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film (polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), Then use polyethylene-polyvinylidene chloride-polyethylene co-extrusion film to seal and pack (polyethylene thickness 55, polyvinylidene chloride thickness 17 microns), store for 10 months, and get lure C.

The attractant core is sealed and packaged with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film (polyamide thickness 15 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), Then use polyethylene-polyvinylidene chloride-polyethylene co-extrusion film to seal and pack (polyethylene thickness 55, polyvinylidene chloride thickness 22 microns), store for 10 months, and get lure D.

The attractant lure core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (thickness of polyethylene is 55 microns, thickness of polyamide is 15 microns, vinyl- The thickness of vinyl alcohol copolymer is 15 microns, the thickness of polyethylene is 55 microns, and the thickness of polyvinylidene chloride is 7 microns), and it is stored for 10 months to obtain lure E.

The attractant lure core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (thickness of polyethylene is 55 microns, thickness of polyamide is 15 microns, vinyl- The thickness of vinyl alcohol copolymer is 15 microns, the thickness of polyethylene is 55 microns, and the thickness of polyvinylidene chloride is 12 microns), and it is stored for 10 months to obtain lure F.

The attractant lure core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (thickness of polyethylene is 55 microns, thickness of polyamide is 15 microns, vinyl- Vinyl alcohol copolymer with a thickness of 15 microns, polyethylene with a thickness of 55 microns, and polyvinylidene chloride with a thickness of 17 microns), stored for 10 months, and lure G was obtained.

The attractant lure core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (thickness of polyethylene is 55 microns, thickness of polyamide is 15 microns, vinyl- The thickness of vinyl alcohol copolymer is 15 microns, the thickness of polyethylene is 55 microns, and the thickness of polyvinylidene chloride is 22 microns), and it is stored for 10 months to obtain lure H.

The attractant core is sealed and packaged with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film (polyamide thickness 18 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), Then use polyethylene-polyvinylidene chloride-polyethylene co-extrusion film to seal and pack (polyethylene thickness 55, polyvinylidene chloride thickness 7 microns), store for 10 months, and get lure I.

The attractant core is sealed and packaged with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extrusion film (polyamide thickness 24 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), Then use polyethylene-polyvinylidene chloride-polyethylene co-extrusion film to seal and pack (polyethylene thickness 55, polyvinylidene chloride thickness 12 microns), store for 10 months, and get lure J.

The attractant core is sealed and packaged with polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (polyamide thickness 28 microns, ethylene-vinyl alcohol copolymer thickness 15 microns, polyethylene thickness 55 microns), Then use polyethylene-polyvinylidene chloride-polyethylene co-extrusion film to seal and pack (polyethylene thickness 55, polyvinylidene chloride thickness 17 microns), store for 10 months, and get lure K.

The attractant lure core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (polyamide thickness 18 microns, polyethylene thickness 55 microns, ethylene- The thickness of vinyl alcohol copolymer is 15 microns, the thickness of polyethylene is 55 microns, and the thickness of polyvinylidene chloride is 7 microns), and it is stored for 10 months to obtain lure L.

The attractant lure core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (polyamide thickness 24 microns, polyethylene thickness 55 microns, ethylene- The thickness of vinyl alcohol copolymer is 15 microns, the thickness of polyethylene is 55 microns, and the thickness of polyvinylidene chloride is 12 microns), and it is stored for 10 months to obtain lure M.

The attractant core is sealed and packaged with polyethylene-polyvinylidene chloride-polyamide-ethylene-vinyl alcohol copolymer-polyamide-polyethylene co-extruded film (polyamide thickness 28 microns, polyethylene thickness 55 microns, ethylene- The thickness of vinyl alcohol copolymer is 15 microns, the thickness of polyethylene is 55 microns, and the thickness of polyvinylidene chloride is 17 microns), and it is stored for 10 months, and the lure N is obtained.

Using Lure A, Lure B, Lure C, Lure D, Lure E, Lure F, Lure G, Lure H, Lure I, Lure J, Lure K, Lure L, Lure Core M, lure N carry out field test respectively, and the result that obtains is similar to table 2, table 3, illustrates that according to the storage effective period of the monochamus alternatus attractant lure core that the method for claim 1 packs is long, is better method of packing.

See Table 4 for descriptions and sources of materials.

Table 4 Sources of materials

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (7)

1. A packaging method for the attractant lure core of Monochamus alternatus adults, characterized in that: PA/PE co-extrusion film, PA/EVOH/PA/PE co-extrusion film, PE/PVDC/PE co-extrusion film, PE co-extrusion film, PE co-extrusion film are adopted /PVDC/PA/EVOH/PA/PE co-extruded film of one or two kinds of sealed package of adult monochamus alternatus attractant lure core. 2. the packaging method of the attractant lure core of Monochamus alternatus adult according to claim 1, is characterized in that: the attractant lure core is sealed and packaged with PA/EVOH/PA/PE co-extrusion film earlier, and then with PE /PVDC/PE co-extrusion film for secondary sealing packaging. 3 . The packaging method of the attractant lure core of Monochamus alternatus adults according to claim 1 , characterized in that: the attractant lure core is sealed and packaged with PE/PVDC/PA/EVOH/PA/PE co-extrusion film. 4. The packaging method of the attractant lure core of Monochamus alternatus adults according to claim 1 or 2, characterized in that: the thickness of the PVDC layer in the PE/PVDC/PE co-extrusion film is 5-25 microns. 5. the packaging method of the attractant lure core of Monochamus alternatus adults according to claim 1 or 3, is characterized in that: the thickness of the PVDC layer in the PE/PVDC/PA/EVOH/PA/PE co-extrusion film 5-25 microns, and the thickness of the PA layer is 15-30 microns. 6 . The packaging method of the attractant lure core of Monochamus alternatus adults according to claim 4 , characterized in that: the thickness of the PVDC layer in the PE/PVDC/PE co-extrusion film is 15-25 microns. 7. the packaging method of the attractant lure core of Monochamus alternatus adults according to claim 5, is characterized in that: the thickness of the PVDC layer in the described PE/PVDC/PA/EVOH/PA/PE co-extrusion film is 15 ~25 microns, the thickness of the PA layer is 15-30 microns.