A botanical composition for controlling Bemisia tabaci and its botanical pesticide and application
A botanical pesticide and whitefly technology, applied in the fields of application, plant growth regulator, botanical equipment and methods, etc., can solve the problems of large pesticide residues, easy pollution of the environment, and resistance of whitefly to achieve Enhanced toxic effect, easy to degrade, and less resistant to drugs
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Embodiment 1
[0032] Indoor combined toxicity test of oil of Artemisia pupae and ramie oil to Bemisia tabaci:
[0033] Materials and methods: The material used in the experiment was tobacco leaves with Bemisia tabaci, and the method was soaking leaves with insects. All treatments were repeated 3 times, and a control was set up. The steps are as follows, the first step is to determine the LC 50 Value: First, dissolve the above two vegetable oils and their compound mixtures with a small amount of acetone, then make mother liquors with water, and then dilute the mother liquors with water into 6 dilutions of different concentrations; and the attached tobacco leaves were immersed in different dilutions for 5 seconds, and the whiteflies and tobacco leaves were taken out and blotted dry with absorbent paper. There are 40-50 Bemisia tabaci in each petri dish; check the death number of Bemisia tabaci after 24 hours, use the Abbott formula to calculate the corrected mortality rate, if the mortality...
Embodiment 2
[0039] Preparation of 60% Artemisia pupae Oil · Camelina ramie oil emulsifiable concentrate:
[0040] Using steam distillation method, the oil of Artemisia sativa and the oil of Artemisia spp. were extracted from the whole plant of Artemisia spp. At 20-25°C, take 22.5 parts of Artemisia sativa oil and 37.5 parts of ramie oil, mix the two evenly, and then add 10 parts of organic silicon, 13 parts of organic diesel oil, and 7 parts of dodecylbenzenesulfonate in sequence. Sodium phosphate, 1.5 parts of octylphenol polyoxyethylene ether, 2.5 parts of styrene ethylphenol polyoxyethylene polyoxypropylene ether and 6 parts of ethyl acetate, stirred at a speed of 900 rpm for 25 minutes to obtain 60% brown bracts Artemisia oil·Chrysanthemum oil emulsifiable concentrate, the stability and appearance of the preparation are tested, and after passing the test, the finished emulsifiable concentrate is packaged.
Embodiment 3
[0042] Preparation of 40% Artemisia pupae Oil · Camelina ramie oil microemulsion:
[0043] Using steam distillation method, the oil of Artemisia sativa and the oil of Artemisia spp. were extracted from the whole plant of Artemisia spp. At 20-25°C, take 15 parts of Artemisia pupae oil and 25 parts of ramie oil, mix them evenly, then add 6 parts of organic silicon, 13 parts of calcium dodecylbenzenesulfonate, 6 parts of Phenethylphenol polyoxyethylene ether, 5 parts of ethylene glycol and 5 parts of ethanol, and then add 25 parts of deionized water, mix well, and stir at a speed of 900 rpm for 25 minutes to obtain Artemisia sativa oil·Cherina sativa Ramie oil microemulsion, the stability and appearance of the preparation are tested, and after passing the test, the microemulsion product is packaged.
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