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Pesticide composition containing spinosad and application of the composition

An insecticidal composition, spinosad technology, applied in the direction of insecticide, application, acaricide, etc., can solve the problems of death, dehydration of larvae, inability to complete molting, etc.

Inactive Publication Date: 2015-03-25
孙素一
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the pest eats the loyal minister, it will soon have an abnormal molt reaction, stop feeding, and molt early, but cannot complete the molt due to abnormal molt, resulting in dehydration and starvation of the larvae and death

Method used

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  • Pesticide composition containing spinosad and application of the composition
  • Pesticide composition containing spinosad and application of the composition
  • Pesticide composition containing spinosad and application of the composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 30% spinosad · furantenozide suspension preparation, the distribution ratio of each component is by weight:

[0026]

[0027]

[0028] The preparation process is as follows: high-speed dispersion of spinosad and furantenozide, phenylethylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and part of water according to the stated ratio for 30 minutes, and sand milling The machine grinds the mixed material to a particle size of less than 5um, then puts it in the post-mixing kettle, adds ethylene glycol, citric acid, xanthan gum, etc. and stirs evenly to obtain the finished product.

experiment example 1

[0030] Weigh spinosyn and furafenozide and use the process of Example 1 to prepare a spinosad-furafenozide suspension concentrate with a total active ingredient weight percentage of 30% in different proportions. See the table below for specific ratios.

[0031] The indoor synergistic bioassay was carried out by the leaf dipping method, and the resistant Plutella xylostella was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. Medium concentration, use the LC50 value to calculate the co-toxicity coefficient according to Sun Yunpei's method to evaluate the mixed effect, usually showing three types of effects, namely synergistic, additive and antagonistic, when the co-toxicity coefficient (CTC) is greater than 120, it has a synergistic effect .

[0032] Actual toxicity index ATI (AB) = EC50 of A / AB EC50 * 100; theoretical toxicity index TTI (AB) = TI (A) * A percentage in the mixture + TI (B) * B in the mixture Th...

experiment example 2

[0037] The indoor synergistic bioassay was carried out by the leaf soaking method, and the resistant cotton bollworm was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. Medium concentration, use LC50 value to calculate co-toxicity coefficient according to Sun Yunpei method, the results are shown in the following table: Table 2 Toxicity determination results of spinosad and furafenozide compound and single dose against resistant cotton bollworm.

[0038]

[0039] It can be seen from Table 2 that the co-toxicity coefficients of spinosad and furanozide are both greater than 120 within the range of proportion, indicating that both have synergistic effect within this range.

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Abstract

The invention discloses a pesticide composition containing spinosad and application of the composition. The composition comprises spinosad (A) and furan tebufenozide (B), wherein the weight ratio of spinosad to furan tebufenozide is (1-50) to (50-1). The composition is prepared into various pesticide formulations by adding components such as an emulsifier, a cosolvent, an antifreezer, a defoamer, a thickener, a stabilizer and a pH regulator, but preferably the composition is prepared into an environment-friendly water-based suspending agent preparation; the composition has a synergistic pesticide effect and can delay pesticide resistance of pests and prevent and control various pests such as delphacidae, aleyrodidae, aphides, thrips, diamondback moths, beet armyworms and mites on crops.

Description

technical field [0001] The invention relates to the technical field of pesticide preparations, in particular to an insecticidal composition containing spinosyn and its application. Background technique [0002] Spinosyn, also known as spinosad (Spinosad), is a macrolide pollution-free and efficient biopesticide extracted from the fermentation broth of Saccharopolyspora spinosa. [0003] Spinosyns are pale off-white crystals with an odor similar to slightly stale earth. , melting point A-type 84 ℃ ~ 99.5 ℃, D-type 161.5 ℃ ~ 170 ℃, density 0.512g / cm3 (20 ℃). Solubility in water: Type A is 270, 235, and 16 mg / L when the pH is 5, 7, and 9, and Type D is 28.7, 0.332, and 0.053 mg / L when the pH is 5, 7, and 9. In aqueous solution, the pH is 7.74, and it is relatively stable to metals and metal ions within 28 days. In the environment, it is explained through a combination of ways, mainly photolysis and microbial degradation. [0004] The mechanism of action of spinosad is very ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/22A01P7/02A01P7/04A01N43/12
Inventor 孙素一
Owner 孙素一
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