CN108124862B - Synergistic auxiliary agent of pesticide for killing borers and use method thereof - Google Patents

Abstract

The invention belongs to the technical field of chemical pest control, and in particular relates to a synergist for a borer agent and a method for using the same. amide and spinosad. The selected synergist is an isomeric alcohol ether, preferably isotridecanol polyoxyethylene ether. The isotridecanol polyoxyethylene ether is added to the mothicide liquid prepared by mixing with water in advance, and its use concentration is 0.033%-0.067%. After mixing evenly, it can be sprayed. The invention can obviously improve the control effect of different borer pesticides on rice borers, can achieve the purpose of reducing the amount of the pesticides and controlling the damage, and the synergist has the characteristics of low cost and convenient use.

Description

A kind of synergist of borer medicament and using method thereof

technical field

The invention relates to the field of chemical pest control, in particular, to a synergist of a borer medicament and a method for using the same.

Background technique

Pesticides are an indispensable means of production in agricultural production, and play an extremely important role in preventing and controlling diseases, pests and weeds and ensuring safe crop production. But no matter what kind of agent, the target can only fully play the role of the pesticide if it contacts and absorbs a sufficient amount of the pesticide. Boring pests live in host plant tissues, and the epidermis of these host plant tissues is rich in wax, and it is difficult for conventional chemicals to penetrate this barrier, so the control effect is often unsatisfactory. Synergist is a kind of compound that has no biological activity to the target. After mixing with the agent, it can reduce the surface tension of the agent, improve the spreading, dispersing and penetrating ability of the agent, which is beneficial to the spread of the liquid on the surface of the plant tissue and to the plant tissue. Internal penetration, and some can also inhibit the detoxification metabolism of harmful organisms, thereby improving the biological activity and control effect of pesticides.

Diploid borer is the main pest of rice, and its larvae bore into rice leaf sheath tissue and rice stalk to damage, commonly known as "borer". Harm the tillering stage rice and cause dead sheaths and dead heart seedlings; damage the booting and heading stage rice, causing dead booting and white ears; damage the grain-filling and milk-maturing stage rice, causing half dead ears and insect-injured plants, causing serious economic losses. Due to the long-term and unreasonable application of chemicals, the problem of drug resistance of Dilophos is more and more serious: from 1990 to 2000, high-drug-resistant populations of methamidophos, insecticide and triazophos were successively monitored in Zhejiang, Jiangsu and other places. ; From 2000 to 2012, the level of resistance to insecticides, triazophos, and fipronil was relatively high; after 2012, the resistance to triazophos, chlorantraniliprole, fipronil, The resistance to vermectin and other pesticidal agents is outstanding. In the high-resistance areas of Jiangxi, Hunan, and Zhejiang, the control efficiency of the existing borer-killing agents against the resistant Dilophos is extremely low, and there are many rice fields with control failures. Therefore, there is an urgent need to research and develop related technologies to improve the control effect of existing insecticides, so as to timely and efficiently control the damage caused by Diploxin, so as to ensure the safe production of food in my country.

SUMMARY OF THE INVENTION

In view of the above-mentioned technical problems, the present invention provides a synergistic adjuvant of a borer medicament and a method for using the same, which has an excellent synergistic effect on the medicament for preventing and controlling the borer. The specific technical solutions are:

Select iso-alcohol ether as the synergist of the borer agent, add the iso-alcohol ether to the borer liquid prepared by mixing water in advance, and then spray it after mixing evenly. The volume concentration in the liquid is 0.033%-0.067%.

Described borer medicament is organophosphorus, carbamate, necrotoxin, macrolide and bisamide medicament, preferably ammonium phosphine, triazophos, abamectin, chlorantraniliprole Formamide and spinosad are formulated into pesticide solutions according to the recommended dosage and preparation method of the chemical species.

The isomeric alcohol ether is preferably isomeric tridecanol polyoxyethylene ether.

Isomerized alcohol ethers are non-ionic surfactants with excellent performance, and are highly efficient emulsifiers, penetrants and wetting agents. They have been widely used in washing daily chemicals, textiles, leather and other chemical industries. Isotridecanol polyoxyethylene ether is preferred, the adjuvant has a long carbon chain structure of thirteen carbons, which makes the system have excellent emulsion stability and steric stability; non-Guerbet alcohol, small branched alcohol Alkyl alcohol has many branches and strong penetrating ability, which can promote the adhesion of emulsions; it does not contain benzene ring structure, does not contain APEO, and is easily biodegradable. That

The beneficial effects of the present invention are:

The invention provides a synergistic adjuvant for a borer agent. The adjuvant and the borer agent are mixed and sprayed. The use method is simple and has a strong synergistic effect on insecticides, that is, when the dosage is reduced, the The control effect of the chemical can still be guaranteed. The invention is an innovation to realize pesticide reduction and control of borer damage, which will definitely promote agricultural non-point source pollution control, build a resource-saving and environment-friendly society, ensure agricultural production safety, agricultural product quality safety and ecological environment safety, and promote agricultural production. Sustainable development has a positive and far-reaching impact.

Detailed ways

The present invention will be further described below through specific examples, and the beneficial effects of the present invention will be further described in conjunction with corresponding experiments. However, the content of the present invention is not limited to this, and therefore should not be construed as limiting the scope of the present invention.

Example 1

Add 100 ml of 5% abamectin EC to 30 kg of water and mix well, then add 10 ml of isotridecyl polyoxyethylene ether at a ratio of 0.033% and stir and mix well.

Example 2

Add 100 ml of 5% abamectin EC to 30 kg of water and mix well, then add 20 ml of isotridecanol polyoxyethylene ether at a ratio of 0.067%, and stir and mix well.

Example 3

Add 200 ml of 30% water amine·triazophos emulsifiable concentrate to 30 kg of water and mix well, then add 10 ml of isotridecanol polyoxyethylene ether at a ratio of 0.033% and stir and mix well.

Example 4

Add 200 ml of 30% water amine·triazophos EC to 30 kg of water and mix well, then add 20 ml of isotridecanol polyoxyethylene ether at a ratio of 0.067% and stir and mix well.

Example 5

Add 50 ml of 6% spinosad suspending agent to 30 kg of water and mix well, then add 10 ml of isotridecanol polyoxyethylene ether at a ratio of 0.033%, and stir and mix well.

Example 6

Add 50 ml of 6% spinosad suspending agent to 30 kg of water and mix well, then add 20 ml of isotridecanol polyoxyethylene ether at a ratio of 0.067% and stir and mix well.

Example 7

Add 20 ml of 20% chlorantraniliprole suspending agent to 30 kg of water and mix well, then add 10 ml of isotridecanol polyoxyethylene ether at a ratio of 0.033%, and stir and mix well.

Example 8

Add 20 ml of 20% chlorantraniliprole suspending agent to 30 kg of water and mix well, then add 20 ml of isotridecanol polyoxyethylene ether at a ratio of 0.067%, and stir and mix well.

Field efficacy test

According to the requirements of Pesticide Field Efficacy Test Guidelines (1) GB/T17980.1-2000, the field efficacy test for the prevention and control of Chilo amphia was carried out for the above examples.

The plots were set up in random blocks in the field, the plot area was 90m ² / plot, each treatment was repeated 3 times, and each plot was sprayed with 4 kg of liquid medicine, and the treatment with only the same amount of drug without adjuvant and the blank treatment were set as controls . In the peak period of occurrence of 1-2 instar larvae of S. chinensis, an electric sprayer was used for uniform spraying once. When the damage of the field borer was basically stable (when the damage was obvious in the blank control area), the total number of rice plants and the number of injured plants were sampled and investigated. control effect.

The test results are shown in Table 1. As can be seen from Table 1, the control effects of 5% Abamectin EC and the adjuvant isomerized tridecanol polyoxyethylene ether mixed treatment (Example 1 and Example 2) were 60.5% and 70.5%, respectively, on the control effect of Dilophos %, were significantly higher than the control effect of the treatment with the same amount of 5% abamectin EC alone (49.9%); 30% water amine·triazophos EC and auxiliary isomerized tridecanol polyoxyethylene ether mixed treatment (Example 3 and Example 4) The control effect of Dilophos is 70.1% and 54.6% respectively, which are significantly higher than the control effect (42.3%) of the single use of the same amount of 30% hydrazine·triazophos EC; The control effects of 6% spinosad suspending agent and the adjuvant isotridecanol polyoxyethylene ether (Example 5 and Example 6) were 75% and 84.6%, respectively, which were significantly higher. The control effect of using the same amount of 6% spinosad suspending agent alone (72.9%); 20% chlorantraniliprole suspending agent and adjuvant isotridecanol polyoxyethylene ether mixed treatment (Example 5 and Example 6), the control effects on Diploxinus are 59.8% and 44.4%, respectively, which are significantly higher than the control effects (23.4%) of the single treatment with an equal amount of 20% chlorantraniliprole suspending agent. In addition, all the treated rice treated with the mixture of medicaments and auxiliaries grew normally, and no phytotoxic symptoms occurred. The above results show that the adjuvant isotridecanol polyoxyethylene ether has obvious synergistic effect on abamectin, spinosad, water amine triazophos and chlorantraniliprole.

Table 1 The results of the test results of the mixed use of the borer agent and the adjuvant to prevent and control the stem borer

deal with Control effect % deal with Control effect % Example 1 60.5 Example 5 75.0 Example 2 70.5 Example 6 84.6 5% Abamectin EC 49.9 6% Spinosad Suspension 72.9 Example 3 70.1 Example 7 59.8 Example 4 54.6 Example 8 44.4 30% water amine triazophos EC 42.3 20% Chlorantraniliprole Suspension 23.4

Claims (2)

1. a using method of a borer medicament synergistic agent, is characterized in that: select iso-alcohol ether as the synergist of borer medicament, and the iso-alcohol ether is added to the borer medicament prepared by adding water in advance In the liquid, it can be sprayed after being evenly mixed, and the volume concentration of the iso-alcohol ether in the borer liquid is 0.033% or 0.067%, and the borer agents are triazophos, abamectin and chlorantraniliprole amide. 2. the using method of a kind of borer agent synergistic agent as claimed in claim 1, is characterized in that: described isomeric alcohol ether is isomeric tridecanol polyoxyethylene ether.