Use of columbianadin as agricultural insect antifeedant and pesticide
A technology of dihydrocarcinol and angelic acid ester, which is applied in the agricultural field to achieve the effects of strong insect antifeedant activity and favorable environmental protection
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Embodiment 1
[0012] Example 1 Prevention and control of agricultural pests with dihydro-salveol angelate as an active ingredient
[0013] The source of the tested insects was the 3rd to 6th instar larvae collected from the field population and raised indoors with artificial feed until they pupated and oviposited, and the 1st instar larvae whose F1 and F2 generations were basically the same in size were selected for the virulence test. Accurately weigh dihydro-salverol angelate (purchased from China Institute for the Control of Pharmaceutical and Biological Products), dissolve it in acetone, and prepare a concentration of 1.000 mg / ml as a test liquid for future use. Use a leaf topper to make fresh and clean cabbage leaves (wherein the armyworm uses wheat leaves) into a leaf disc with a diameter of 1.5 cm, then soak it in the test drug solution for 10 seconds, take it out, and then take it out and dry it in a place containing Into the culture dish of 1% water agar or moisture-retaining filte...
Embodiment 2
[0018] The wettable powder with active ingredient concentration of 5% was prepared by weighing dihydro-salveol angelate, lignin, diatomaceous earth and other conventional auxiliary materials according to the conventional process.
Embodiment 3
[0020] Weighing conventional excipients such as dihydropiperol angelate, calcium dodecylbenzenesulfonate, phenethylphenol polyoxyethylene ether, solvent oil, etc., according to a conventional process, to prepare an emulsifiable concentrate with an active ingredient concentration of 5%.
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