Spinetoram-containing insecticidal composition and use thereof
A technology of spinosad and insecticidal composition, applied in the directions of insecticide, application, biocide, etc., can solve the problems of death, inability to complete molting, dehydration of larvae, etc.
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Embodiment 1
[0023] Prepared with 26% spinosad · furantenozide suspension concentrate, the distribution ratio of each component is by weight:
[0024]
[0025] The preparation process is as follows: high-speed dispersion of spinosad and furafenozide, styroxylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and part of water according to the stated ratio for 30 minutes, and then Grind the mixed materials with a sand mill to a particle size below 5um, then add ethylene glycol, citric acid, xanthan gum, etc. to the post-mixing kettle and stir evenly to obtain the finished product.
experiment example 1
[0027] Weighed spinosyn and furafenozide using the process of Example 1 to prepare a spinosad-furafenozide suspension concentrate with a total active ingredient weight percentage of 26%. See the table below for specific ratios.
[0028] 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 .
[0029] Actual toxicity index ATI(AB)=EC50 of A / EC50 of AB*100
[0030] Theoretical toxicity index TTI(AB)=TI(A)*A percentage in the mixture +TI(B)*B percentage in the mixture Co-toxicity coeffici...
Embodiment 2
[0036] 55% spinosad · furantenozide suspension preparation, the distribution ratio of each component is by weight:
[0037]
[0038] Preparation method with reference to embodiment 1
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