JP6893118B2 - Dispersion method of natural enemy creatures - Google Patents

Description

The present invention relates to a method for enhancing the colonization of natural enemy organisms and further enhancing the dispersion of natural enemy organisms by using an apparatus for assisting the movement of natural enemy organisms between strains of cultivated plants such as crops and horticultural plants.

In recent years, for example, as shown in Patent Documents 1 to 3, biopesticides that release predatory natural enemy organisms that prey on harmful pests have been used in agricultural products such as eggplants and horticultural plants such as barbena. These predatory natural enemy organisms include types that do not fly like stink bugs and types that cannot fly during the larval stage, such as stink bugs and ladybugs, and can fly when they become adults. Exists.

Predatory natural enemy organisms need to be released as biopesticides in farms, fields, gardens, greenhouses, etc. in the early stages of outbreak when the number of pests is small. However, since there are few pests to feed on, predatory natural enemy organisms that can fly may easily fly and move to other places. In addition, even if a predatory natural enemy organism that does not fly or a predatory natural enemy organism that becomes capable of flying when it becomes an adult is released in the state of a larva, it may move to another place by walking. For this reason, predatory natural enemy organisms have a poor colonization rate at the adult stage in farms, fields, gardens, greenhouses, etc. as they are, so measures are required to obtain sufficient effects as biopesticides.

Therefore, in order to increase the colonization rate of predatory natural enemy organisms in farms, fields, gardens, greenhouses, etc. even in the early stages of pest outbreaks, substitute feeds for pests, such as frozen eggs of Mediterranean Flour Moth, Artemia (brine) A method is adopted in which durable eggs of shrimp (shrimp), pollen of cattail, etc. are sprayed on the leaves of agricultural products and horticultural plants, and the movement is prevented by feeding them. Further, in order to increase the colonization rate of predatory natural enemy organisms at the adult stage, for example, as shown in Patent Documents 2 and 3, a method of releasing ladybugs having no flight ability even when they become adults has been developed. ..

Japanese Unexamined Patent Publication No. 2007-297293 International Publication No. 2007/148567 Japanese Unexamined Patent Publication No. 2010-183902

However, some leaves of agricultural products and horticultural plants have a narrow width, and some have a tip extending above or below the horizontal with respect to the base end. Even if the substitute food is sprayed on such leaves, it may fall to the ground and may not be sufficiently supplied as a food amount for increasing the retention rate of the released predatory natural enemy organisms. Furthermore, it is complicated to spray the substitute bait one by one for crops and horticultural plants, so that it is not actually widely used.

In addition, in order for predatory natural enemy organisms to function as biopesticides throughout farms, fields, gardens, greenhouses, etc., it is preferable to release them uniformly in small amounts to all strains of crops and horticultural plants. It's actually difficult. For this reason, the reality is that the animals are released together to some extent while leaving a predetermined number. When the crops and horticultural plant stocks are separated, the leaves of adjacent crops and horticultural plants are not adjacent to each other, and the predatory natural enemy organisms travel along the overlapping parts of the leaves and the adjacent crops and horticulture. Cannot move to a plant.

In this case, as shown in Patent Documents 2 and 3, if the flying ability of the predatory natural enemy organism is lost, it becomes necessary to descend from the crop or the horticultural plant to the ground. It becomes difficult to move to the next crop or horticultural plant. For this reason, predatory natural enemy organisms cannot be dispersed from the released crops or horticultural plant strains to other crops or horticultural plant strains, and the entire plantations, fields, gardens, greenhouses, etc. are sufficient as biopesticides. There may be a problem that does not work. This defect is also considered to be a non-flying predatory natural enemy organism from the beginning, such as a larva of a predatory natural enemy organism that can fly and a mosquito mite.

Therefore, according to the present invention, by stably feeding a substitute feed regardless of the state of leaves of agricultural crops or horticultural plants, a predatory natural enemy organism is formed even in the early stage of development when the number of pests used as feed is small. It is possible to prevent the movement of organisms and increase the colonization rate, and even when predatory natural enemy organisms that do not have the ability to fly are used as biological pesticides, other strains of cultivated plants such as released crops or horticultural plants can be used. It is an object of the present invention to provide a method for dispersing natural enemy organisms using an auxiliary device for promoting colonization and migration of natural enemy organisms, which enables dispersion of cultivated plants in strains.

Auxiliary equipment for promoting the settlement and movement of natural enemy organisms is an auxiliary equipment for promoting the establishment and movement of natural enemy organisms that can be bridged between strains of multiple cultivated plants and allow natural enemy organisms to move along the outer surface. , The colonization of the natural enemy organism can be improved by being composed of the string-shaped member and the food material of the natural enemy organism attached to the outer surface of the string-shaped member by the adhesive.

Natural enemy organisms are, for example, insects such as predatory stink bugs and ladybugs that have lost their flight ability even at the larval and adult stages, and organisms such as mosquito mites that have flight ability from the beginning. Those that do not apply. Cultivated plants include, for example, a wide variety of crops such as cucumbers, eggplants and tomatoes, and horticultural plants such as verbenas, carnations and roses.

As a result, the food material attached to the outer surface of the assistive device for promoting settlement and movement enables feeding to the natural enemy organisms, so that the natural enemy organisms can feed even at the initial stage when there are few pests to be preyed on by the natural enemy organisms. Increases the retention rate in the place where the animals are released. By spanning a plurality of cultivated plants with an auxiliary device for promoting colonization / movement to which the food material is attached, the same effect as arranging the food material for each cultivated plant can be obtained.
In addition, natural enemy organisms released on a certain crop or horticultural plant strain are transmitted to the adjacent crop or horticultural plant strain through the settlement promotion / movement promotion auxiliary equipment to promote the settlement between the strains. It moves along the string-shaped member of the movement promotion auxiliary device. Moreover, since the food material is attached to the outer surface of the string-shaped member of the auxiliary device for promoting fixation and movement, the movement rate of natural enemy organisms is increased by being attracted by the food material.

The auxiliary device for promoting the settlement and movement of natural enemy organisms has a tubular member attached to the outer periphery of the string-shaped member. Then, a gap is formed between the tubular members attached to the string-shaped member, and the string-shaped member and the food material attached to the string-shaped member are exposed from the gap between the tubular members. .. The inner diameter of the tubular member is larger than the outer diameter of the string-shaped member so that a gap is formed between the tubular member and the string-shaped member. The material of the tubular member is, for example, a synthetic resin such as polyethylene terephthalate, paper, or the like. For example, the tubular member may have an elliptical or oval shape when viewed from the axial direction so that the string-shaped member does not rotate about the axis.

As a result, some of the natural enemy creatures enter the gap between the tubular member and the string-shaped member from between the tubular member and the tubular member, and use the inside of the tubular member as a hiding place. The retention rate of natural enemy creatures will increase further. In addition, by forming the tubular member with a material having excellent water resistance such as plastic or applying a water resistant treatment, water and rainwater sprayed for cultivation and food adhering to the string-shaped member and the string-shaped member due to dew condensation. It becomes possible to protect the material. Furthermore, when pesticides are sprayed on cultivated plant strains, it is possible to reduce the risk of exposure to natural enemy organisms.

The method for dispersing natural enemy organisms according to the present invention is composed of a string-shaped member and a dietary material for natural enemy organisms attached to the outer surface of the string-shaped member by an adhesive, and is bridged between strains of a plurality of cultivated plants. a natural enemy organisms dispersion method using the moving aids natural enemy organisms capable natural enemy organisms moved transmitted an outer surface, optionally one or more selected from among the strains of the plurality of cultivated plants a step of the release, the natural enemy organisms strains cultivated plants of the string-shaped member obtained by adding the diet material in the adhesive, at least, the natural enemy organisms of strain of the plurality of cultivated plants the release, a strain of one or more of cultivated plants are, the natural enemy organisms is characterized by comprising the step of bridging between the strains of one or more of cultivated plants which have not been the release,.

As a result, it becomes possible to feed the natural enemy organisms with the food material attached to the outer surface of the auxiliary device for promoting colonization and movement, so that the food material can be used even at the initial stage when there are few pests to be preyed on by the natural enemy organisms. Since the natural enemy creatures eat, it is possible to increase the retention rate in the place where the natural enemy creatures are released. Then, the natural enemy organisms released on the stock of a certain crop or horticultural plant are transmitted between the stocks of the adjacent crop or horticultural plant through the auxiliary equipment for promoting colonization and movement. It can be moved along the string-shaped member of the movement promoting auxiliary device. Moreover, by adhering the food material to the outer surface of the string-shaped member of the auxiliary device for promoting colonization / movement, the natural enemy organisms are attracted to the food material, so that the migration rate of the natural enemy organisms can be increased.

As described above, according to the invention of claim 1, since it is possible to feed the natural enemy organisms with the food material attached to the outer surface of the auxiliary device for promoting the settlement and movement of the natural enemy organisms, the natural enemy organisms can be fed. Even in the initial stage when there are few pests to be preyed on by the organism, the natural enemy organisms feed on the food material, so that the retention rate in the place where the natural enemy organisms are released can be increased.
By spanning a plurality of cultivated plants with an auxiliary device for promoting colonization / movement to which the food material is attached, the same effect as arranging the food material for each cultivated plant can be obtained.
Since the food material is secured from the beginning, it is expected that the natural enemy organisms will feed on the food material and breed, so the number of natural enemy organisms to be released first is smaller than when the food material is not supplied. It can be reduced and the growth is rapid.
In addition, the natural enemy organisms released on the stock of a certain crop or horticultural plant are transmitted to the stock of the adjacent crop or horticultural plant through the string-like member of the auxiliary device for promoting settlement and movement. Can be moved.
Moreover, by adhering the food material to the outer surface of the string-shaped member of the auxiliary device for promoting fixation and movement, the natural enemy organisms are attracted by the food material, so that the migration rate of the natural enemy organisms can be increased.
Therefore, even natural enemy organisms that do not have the ability to fly can be diffused to farms, fields, gardens, greenhouses, etc., and can be effectively used as biopesticides.

Auxiliary device for promoting the settlement and movement of natural enemy creatures By mounting a plurality of tubular members whose axial dimensions are shorter than the total length of the string-shaped members on the outer circumference of the string-shaped members, the tubular members are among the natural enemy creatures. In some cases, the tubular member enters the gap between the tubular member and the string-shaped member from between the tubular member, and the inside of the tubular member is used as a hiding place, so that the retention rate of natural enemy organisms is further increased. It is possible to raise it.
In addition, by forming the tubular member with a material having excellent water resistance such as plastic or applying a water resistant treatment, the food material adhered to the string-shaped member or the string-shaped member from water, rainwater, or dew condensation sprayed for cultivation. Can be protected.
Furthermore, when pesticides are sprayed on cultivated plant strains, it is possible to reduce the risk of exposure to natural enemy organisms.

FIG. 1 is an explanatory diagram that generically shows the configuration of auxiliary equipment for promoting the colonization and movement of natural enemy organisms. FIG. 2 (a) is an explanatory diagram showing the configuration of an auxiliary device for promoting the settlement and movement of natural enemy organisms in which a durable egg of Artemia is attached to a hemp string, and FIG. 2 (b) is a diagram showing FIG. 2 (a). It is an enlarged view of the auxiliary device for promoting the settlement and movement of natural enemy organisms shown in. FIG. 3A is an explanatory diagram showing the configuration of an auxiliary device for promoting the settlement and movement of natural enemy organisms in which a durable egg of Artemia is attached to a yarn string, and FIG. 3B is FIG. 3A. ) Is an enlarged view of the auxiliary device for promoting the colonization and movement of natural enemy organisms. FIG. 4A is an explanatory diagram showing the configuration of an auxiliary device for promoting the colonization / movement of natural enemy organisms having cattail pollen attached to a yarn string, and FIG. 4B is FIG. 4A. It is an enlarged view of the auxiliary device for promoting the settlement and movement of natural enemy organisms shown in. FIG. 5 (a) is an explanatory diagram showing the configuration of an auxiliary device for promoting the colonization / movement of natural enemy organisms in which cattail pollen is attached to a felt string, and FIG. 5 (b) is FIG. 5 (a). ) Is an enlarged view of the auxiliary device for promoting the colonization and movement of natural enemy organisms. FIG. 6 is an explanatory diagram showing an arrangement example of auxiliary equipment for promoting the settlement and movement of natural enemy organisms when the plant for cultivation is cucumber. FIG. 7 is an explanatory diagram showing an arrangement example of auxiliary equipment for promoting the settlement and movement of natural enemy organisms when the plant for cultivation is eggplant. FIG. 8 is an explanatory diagram showing an arrangement example of auxiliary equipment for promoting the settlement and movement of natural enemy organisms when the plant for cultivation is tomato. FIG. 9 is a characteristic diagram showing the experimental results when the Bemisia tabaci was released on the cucumber. FIG. 10 is a characteristic diagram showing the experimental results when the Bemisia tabaci was released on tomatoes. FIG. 11 is a characteristic diagram showing the experimental results when the Bemisia tabaci was released to the eggplant. FIG. 12 is a characteristic diagram showing the experimental results when the Bemisia tabaci was released in Verbena. FIG. 13 is a characteristic diagram showing the experimental results when the black leopard tank turtle was released on the cucumber. FIG. 14 is a characteristic diagram showing the experimental results when the black leopard tank turtle was released on tomatoes. FIG. 15 is a characteristic diagram showing the experimental results when the black leopard tank turtle was released to the eggplant. FIG. 16 is a characteristic diagram showing the experimental results when the black leopard tank turtle was released in verbena. FIG. 17 is a characteristic diagram showing the experimental results when the larvae of Bemisia tabaci were released into eggplants. FIG. 18 is a characteristic diagram showing the experimental results when the larvae of the lady beetle are released in verbena. FIG. 19 (a) is an explanatory diagram showing the configuration of an auxiliary device for promoting the colonization / movement of natural enemy organisms in which a plurality of tubular members are attached to the string-shaped member, and FIG. 19 (b) is FIG. 19 (b). It is an enlarged view of the auxiliary device for promoting the settlement and movement of natural enemy organisms shown in a).

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the auxiliary device for promoting the settlement and movement of natural enemy organisms (hereinafter referred to as the auxiliary device for promoting settlement and movement) 1 is attached to the string-shaped member 2 and the string-shaped member 2. It is composed of at least the food material 3.

The string-shaped member 2 is, for example, a hemp string as shown in FIGS. 2 (a) and 2 (b), and wool as shown in FIGS. 3 (a) and 3 (b) and 4 (a) and 4 (b). There are yarn strings made of wool, felt strings as shown in FIGS. 5 (a) and 5 (b), vinyl strings (not shown), and the like. When a hemp string or a yarn string is used as the string-shaped member 2, it is easily decomposed in the soil, so that it can be plowed into the soil together with the plant residue after the plant is cultivated. .. Further, when a material having no water absorption such as a vinyl string is used as the string-shaped member 2, it does not corrode even if it is exposed to water for spraying or rainwater, and can be used for a long period of time. The total length of the string-shaped member 2 ranges from, for example, 2 to 3 m to 10 m, and is used properly according to various conditions such as the type of cultivated plant and the release place of natural enemy organisms such as a farm, a field, a garden or a vinyl house.

The food material 3 is called a substitute food provided in place of the pests preyed on by natural enemy organisms, and for predatory insects, for example, FIGS. 2 (b), 3 (b) and 5 Durable eggs of Artemia (brine shrimp) as shown in (b) are used. Although not shown, eggs of Mediterranean Flour Moth that have been treated so as not to hatch (for example, frozen treatment) are also used. For predatory mites, for example, cattail pollen or pine pollen (not shown) as shown in FIG. 4B is used. In addition, there is no particular limitation as long as it can be eaten by natural enemy organisms to be released, such as artificial feed processed into powder. In addition, a mixture of two or more types may be used, such as a mixture of a Mediterranean Flour Moth egg that has been treated so as not to hatch (for example, a frozen treatment) and a durable egg of Artemia.

An adhesive for adhering the food material 3 to the string-shaped member 2 is not shown due to its nature, but for example, a starch-based adhesive, an acrylic resin-based adhesive, a rubber-based adhesive, pine oil, glue, etc. A variety of things are used. In places where there is a risk of spraying water or rainwater, it is preferable to use a water-insoluble adhesive such as rubber.

Next, an example of the manufacturing process of the fixing promotion / movement promotion auxiliary device 1 and its arrangement in a farm, a field, a garden, a vinyl house, or the like will be described.

In the manufacturing process of the fixing promotion / movement promotion auxiliary device 1, for example, after immersing the string-shaped member 2 in the adhesive, the string-shaped member 2 is passed through the food material 3 before the adhesive dries. This is done by adhering the food material 3 to the outer surface of 2. In such a manufacturing process, the total length of the string-shaped member 2 is preferably, for example, 2 to 3 m.

When the cultivating plant P is an agricultural product, the cultivating plant P strains are lined up along the striped ridges of a field, a vinyl house, or the like, so that the cultivating plant P is arranged in a row. For example, as shown in FIGS. 6 to 8, the leaves and stems of each plant are crawled, and if necessary, they are wrapped between the plants. The distance between each strain of the cultivated plant P is, for example, 45 cm. Therefore, even in the experiment shown below, the distance between each strain of the plant P for cultivation is set to 45 cm.

The method of arranging the auxiliary device 1 for promoting settlement and movement will be changed depending on the leaf attachment and shape of the cultivated plant P, the height of the cultivated plant, and the like. FIG. 6 shows an example of arrangement of the colonization promotion / movement promotion auxiliary device 1 when the cultivation plant P is a cucumber, and FIG. 7 shows an arrangement promotion / migration promotion auxiliary device 1 when the cultivation plant P is an eggplant. FIG. 8 is an arrangement example of the auxiliary device 1 for promoting colonization / movement when the cultivated plant P is a tomato.

The increase in the retention rate of natural enemy organisms when the colonization promotion / movement promotion auxiliary device 1 manufactured in the above process is used is shown in comparison with the case where the colonization promotion / movement promotion auxiliary device 1 is not used. It will be described based on the results of eight experiments shown in FIGS. 9 to 16. In each experiment, on the one hand, ^{two strains of cultivating plant P were placed in a 15 m 2} greenhouse, and an auxiliary device 1 for promoting colonization / movement was laid between the two strains of cultivated plant P. So, a total of 10 natural enemy organisms are released between the two strains, and on the other hand, ^{two strains of cultivated plant P are placed in a 15 m 2} greenhouse to promote colonization between the two strains of cultivated plant P.・ A total of 10 natural enemy organisms are released on two strains without the movement promotion auxiliary device 1 being crossed, and the number of natural enemy organisms in each strain is counted every week. This is an average of multiple experiments.

FIG. 9 shows the experimental results when the Bemisia tabaci (a kind of stink bug) was released on the cucumber. If the colonization promotion / migration promotion auxiliary device 1 cannot be laid between the two strains of the cultivated plant P (without the colonization promotion / migration promotion auxiliary device 1), one week after the start date of the experiment (' On 16/7/24), the number of tobacco turtles has already reached zero. When the transfer / colonization promotion / migration promotion auxiliary device 1 is laid between the two strains of the cultivated plant P (when the colonization promotion / migration promotion auxiliary device 1 is present), one week after the start date of the experiment (1 week after the start date of the experiment) In '16 / 7/24), the number of tobacco turtles decreased from 10 to 2, but the measurement on the observation day every week after that ('16 / 7/31, '16 / 8/1)) The number of individuals will never be zero.

FIG. 10 shows the experimental results when the Bemisia tabaci was released on tomatoes. In the case of no auxiliary device 1 for promoting colonization / movement, the number of Bemisia tabaci has already reached 0 one week after the start date of the experiment ('16 / 7/1). If there is an auxiliary device 1 for promoting colonization and movement, the number of tobacco turtles will decrease from 10 one week after the start of the experiment ('16 / 7/1), but every week thereafter (' According to the measurement when observing on 16/7/8 and '16 / 7/15), the number of individuals has changed between 4 and 6.

FIG. 11 shows the experimental results when the Bemisia tabaci was released to the eggplant. In the case of no auxiliary device 1 for promoting colonization / movement, the number of Bemisia tabaci is 0 2 weeks after the start date of the experiment ('16 / 6/17). In the case of the anchorage promotion / movement promotion auxiliary device 1, the number of individuals is 2 or more even after 2 weeks ('16 / 6/17) from the start date of the experiment, and 3 weeks later (3 weeks later ('16 / 6/17)). On the contrary, the number of individuals is increasing on 16/6/24).

FIG. 12 shows the experimental results when the Bemisia tabaci was released in Verbena. One week after the start date of the experiment ('16 / 6/3), two weeks when comparing the case without the auxiliary device 1 for fixing promotion / movement and the case with the auxiliary device 1 for fixing promotion / movement. After ('16 / 6/10) and after 3 weeks ('16 / 6/17), the case where the fixation promotion / movement promotion auxiliary device 1 is present is the case where the fixation promotion / movement promotion auxiliary device 1 is present. The number of individuals measured on the observation day is higher than in the case of none.

FIG. 13 shows the experimental results when a black leopard stink bug (a kind of stink bug) was released on a cucumber. If the fixation promotion / movement promotion auxiliary device 1 cannot be bridged between the two strains (without the fixation promotion / movement promotion auxiliary device 1), two weeks after the start date of the experiment ('16 / 7/31) ), The number of black leopard tank turtles is 0. When the fixation promotion / movement promotion auxiliary device 1 is laid between the two strains (when the fixation promotion / movement promotion auxiliary device 1 is present), one week after the start date of the experiment ('16 / 7/24) ), The number of black leopard turtles decreases from 10 to less than 2, but the number measured after 2 weeks ('16 / 7/31) and 3 weeks ('16 / 8/7) is 0. Never become a head.

FIG. 14 shows the experimental results when the black leopard tank turtle was released on tomatoes. One week after the start date of the experiment ('16 / 7/1), two weeks when comparing the case without the auxiliary device 1 for fixing promotion / movement and the case with the auxiliary device 1 for fixing promotion / movement. On all observation days after ('16 / 7/8) and about 3 weeks later ('16 / 7/18), the case with the anchorage promotion / movement promotion auxiliary device 1 promotes fixation / movement. The number of individuals measured is larger than that without the auxiliary device 1.

FIG. 15 shows the experimental results when the black leopard tank turtle is released to the eggplant. In the case of no auxiliary device 1 for promoting colonization / movement, the number of black leopard tank turtles has already reached 0 2 weeks after the start date of the experiment ('16 / 6/10). In the case of the anchorage promotion / movement promotion auxiliary device 1, the number of individuals is 4 or more even after 2 weeks ('16 / 6/17) from the start date of the experiment, and 3 weeks later (3 weeks later ('16 / 6/17)). On the contrary, the number of individuals measured increased on June 24, '16).

FIG. 16 shows the experimental results when the black leopard tank turtle is released in verbena. 1 week ('16 / 6/3), 2 weeks ('16 / 6/10), and 3 weeks ('16 / '16 /) from the start date of the experiment without the assistive device 1 for promoting fixation / movement. As of 6/17), the number of black leopard turtles to be measured has decreased for a while. If there is an auxiliary device 1 for promoting fixation / movement, fixation is performed in any measurement 1 week ('16 / 6/3) or 2 weeks ('16 / 6/10) after the start date of the experiment. The number of individuals measured was larger than that without the promotion / movement promotion auxiliary device 1, and after 3 weeks ('16 / 6/17), from 2 weeks later ('16 / 6/10). The number of individuals measured is increasing.

From these experimental results, even if various patterns of experiments were performed, the case where the fixation promotion / movement promotion auxiliary device 1 was used was more than the case where the fixation promotion / movement promotion auxiliary device 1 was not used. It can be seen that the natural enemy creatures are highly colonized.

As a result of an experiment on the migration rate of natural enemy organisms from one cultivated plant to another cultivated plant, when the colonization promotion / migration promotion auxiliary device 1 is laid across (when the colonization promotion / migration promotion auxiliary device 1 is present) It will be explained with reference to FIGS. 17 and 18 that the movement rate is higher in the case where the fixing promotion / movement promoting auxiliary device 1 is not crossed (in the case where the fixing promotion / movement promoting auxiliary device 1 is not provided). To do. Since the natural enemy organism used in this experiment needs to be incapable of flying, the larva of the tobacco turtle is used in FIG. 17, and the larva of the lady beetle is used in FIG. In this experiment, 10 natural enemy organisms were released on one of the two cultivated plant strains, and how much was transferred from one released strain to the other one week after the release date. This experiment was performed multiple times and averaged.

FIG. 17 shows the experimental results when the larvae of Bemisia tabaci were released into eggplants. When comparing the case without the auxiliary device 1 for promoting fixation / movement between the two strains of eggplant and the case with the auxiliary device 1 for promoting fixation / movement, the case without the auxiliary device 1 for promoting fixation / movement The movement rate is 0%, whereas the movement rate is between 12% and 13% in the case of the fixation promotion / movement promotion auxiliary device 1.

FIG. 18 shows the experimental results when the larvae of the lady beetle were released in verbena. When comparing the case without the auxiliary device 1 for promoting fixation / movement between the two strains of Verbena and the case with the auxiliary device 1 for promoting fixation / movement, the case without the auxiliary device 1 for promoting fixation / movement The movement rate is 0%, whereas the movement rate is between 10% and 11% in the case of the fixation promotion / movement promotion auxiliary device 1.

In this way, when there is no auxiliary device 1 for promoting colonization and movement between two strains of cultivated plants, there is no movement from the released strains of natural enemy organisms that cannot fly to the adjacent strains, whereas cultivation is not possible. When an auxiliary device 1 for promoting colonization / movement is laid between two strains of a plant, it flies, for example, as in the movement mode of the non-flying natural enemy organism E shown in FIGS. 6, 7, and 8. Transfers from released strains of natural enemy organisms that cannot be made to adjacent strains are permitted.

The above experiment is an example of the larva of Beetia tabacum and the larva of the lady beetle, but it is considered that the same result can be obtained when the experiment is carried out under the above conditions for all the natural enemy organisms that cannot fly.

From these experimental results, it is more common to have the colonization promotion / movement promotion auxiliary device 1 bridged between two strains of cultivated plants than to use the colonization promotion / migration promotion auxiliary device 1 of natural enemy organisms. It can be seen that the movement rate is high.

By the way, as shown in FIG. 19, the fixing promotion / movement promotion auxiliary device 1 may further have a tubular member 4 mounted on the outer periphery of the string-shaped member 2. As shown in FIG. 19, for example, the tubular member 4 has a circular shape when viewed from the axial direction. However, the shape seen from the axial direction may be an elliptical shape or an oval shape so as not to rotate when attached to the string-shaped member 2. Further, it may be a quadrangular shape or another polygonal shape. The tubular member 4 is preferably made of plastic or coated on the outer surface of paper to have water resistance and waterproofness.

The axial dimension of the tubular member 4 is, for example, 5 cm, and assuming that the total length of the string-shaped member 2 is 2 m, as shown in FIG. 19, a large number of tubular members 4 are one string-shaped member 2. It is attached to. Along with this, an interval of, for example, 2 cm can be provided between the tubular members 4 and 4, and the string-shaped member 2 and the food material 3 attached to the string-shaped member 2 are exposed from this interval.

When the tubular member 4 is attached to the outer circumference of the string-shaped member 2, the inner diameter of all or part of the tubular member 4 is larger than the outer diameter of the string-shaped member 2 so that a gap S is formed between the tubular member 4 and the string-shaped member 2. Is also getting bigger.

As a result, some of the natural enemy creatures enter the gap S between the tubular member 4 and the string-shaped member 2 from between the tubular members 4 and 4, so that the tubular member 4 is a hiding place for the natural enemy creatures ( It becomes a shelter), and it is possible to improve the colonization of natural enemy organisms more than the eight experimental results shown in FIGS. 9 to 16 shown above.

1 Auxiliary equipment for promoting the settlement and movement of natural enemy creatures (auxiliary equipment for promoting the establishment and movement)
2 String-shaped member 3 Dietary material 4 Cylindrical member P Cultivation plant E Natural enemy organism S Gap between the tubular member and the string-shaped member

Claims (1)

It is composed of a string-shaped member and a food material of a natural enemy organism attached to the outer surface of the string-shaped member by an adhesive, and can be bridged between strains of a plurality of cultivated plants to move the natural enemy organism along the outer surface. It is a method of dispersing natural enemy creatures using an auxiliary device for moving natural enemy creatures that can be done.
A step of the release, the natural enemy organisms arbitrarily strain of one or more of cultivated plants are selected from among the strains of the plurality of cultivated plants,
Wherein said string-like member obtained by adding the dietary material with an adhesive, at least, a strain of the natural enemies one or more of cultivated plants organisms is the release, of the strain of the plurality of cultivated plants, the natural enemy organisms A method for dispersing natural enemy organisms, which comprises a step of bridging between one or more cultivated plant strains that have not been released.

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