A kind of insecticide for controlling plant aphids and its preparation and application
A technique for insecticides and aphids, which is applied in the field of preparations containing tert-butylphenol compounds to control plant aphids and its preparation and application. It can solve the problems that no tert-butylphenol compound insecticides have been found, and the method is simple Easy to use, easy to source, and low toxicity
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Embodiment 1
[0019] Weigh respectively p-tert-butylphenol (5%), 2,4-di-tert-butylphenol (15%), 2,6-di-tert-butylphenol (30%), 2-tert-butylphenol (30% ), 2,4,6-tri-tert-butylphenol (20%), a total of 36g, dissolved in 9.4g ethyl acetate solution, added 4.3g Tween, dissolved, according to the conventional process, the insecticide of the present invention was made, Then add water to dilute the prepared insecticide so that the concentration of the bulk drug is 5%. Finally, the diluted insecticide was tested for indoor biological activity on aphids, and the method was carried out according to the aphid stem dipping method in the Bioassay SOP of the National Southern Pesticide Innovation Center. After 24 hours, the number of dead and alive insects in each treatment was investigated, and the control effect was 82.8%.
Embodiment 2
[0021] Weigh respectively p-tert-butylphenol (40%), 2,4-di-tert-butylphenol (5%), 2,6-di-tert-butylphenol (15%), 2-tert-butylphenol (15% ), 2,4,6-tri-tert-butylphenol (25%), a total of 64g, dissolved in 19g ethanol, adding 9.9g of emulsifier etc., according to the conventional process, making the insecticide of the present invention, and then Add water to dilute the prepared insecticide, so that the concentration of the bulk drug is 8%. Finally, the diluted insecticide was tested for indoor biological activity on aphids, and the method was carried out according to the aphid stem dipping method in the Bioassay SOP of the National Southern Pesticide Innovation Center. After 24 hours, the number of dead and alive insects in each treatment was investigated, and the control effect was 91.4%.
Embodiment 3
[0023] Weigh respectively p-tert-butylphenol (20%), 2,4-di-tert-butylphenol (30%), 2,6-di-tert-butylphenol (5%), 2-tert-butylphenol (30% ), 2,4,6-tri-tert-butylphenol (15%), 102g in total, dissolve with 54g acetone, add emulsifier Span etc. 50g therein, according to conventional process, make insecticide of the present invention, then in The prepared insecticide is diluted with water so that the concentration of the raw material drug is 1.1%. Finally, the diluted insecticide was used to test the aphids by indoor potting method, and the mortality rate was counted after 24 hours, and the control effect was 76.2%.
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