Collected common sense experience of pesticides

For fungicides used in ● foliar spray, suspending agent or wettable powder should be selected. The herbicide used for ● foliar spraying can be selected because there is a waxy layer on the surface of weed leaves, and EC, concentrated emulsion and suspending agent containing organic solvents can be used. The EC efficacy of ● insecticide is significantly higher than that of suspending agent and wettable powder, and EC is better for the same pesticide. ● tebuconazole has two isomers-R isomer and S isomer, and the former has bactericidal effect. Silicone cannot be added to ● kung fu. ● silicone has a synergistic effect on chlorpyrifos and triazophos. ● gibberellin should not be used in citrus with silicone auxiliaries. ● due to the special effect of Lesbon auxiliaries, the used peanut shells are white and bright. ● Lesbon has the best effect of spraying 40ml before rain. ● generally sprays bacterial powder in the early morning and evening when there is dew, so that the bacterial agent can better stick to the stems and leaves of crops, promote spore reproduction and improve the efficacy. Ultraviolet rays in ● sunlight can kill spores, so spraying bacterial biological pesticides should be carried out in the evening or cloudy days. The synergistic effect of ● avermectin and chlorpyrifos was obvious, and the synergistic effect was the highest at 1:50. ● 41% glyphosate isopropylamine salt auxiliaries, small factories in 6% 9%, large factories in 10% 15%. ● downy mildew and Botrytis cinerea do not add nitrogen-containing leaf fertilizer, adding potassium fertilizer can increase leaf thickness and sterilize. ● EC and microemulsion are oily and transparent, water emulsion is milky white after mixing with water, and microemulsion and water emulsion are not whitening. ● fungicide should not be watered before and after root irrigation. ● white-backed planthopper is sensitive to imidacloprid and brown planthopper is resistant to imidacloprid. ● Bemisia Tabaci is highly resistant to imidacloprid and sensitive to acetamiprid. When ● uses phoxim or chlorpyrifos, the effect of imidacloprid is doubled and the rate of death is doubled. The activity of ● acetamiprid was higher than that of imidacloprid and was greatly affected by air temperature. ● acetamiprid is easy to decompose at high temperature and imidacloprid is relatively stable. ● acetamiprid has better control effect on aphids and imidacloprid has better control effect on Toona sinensis and thrips. ● azoles inhibited crop growth and gibberellin formation. Diniconazole and tebuconazole had the greatest inhibitory effect, followed by propiconazole and triadimefon, and hexazole phenylether was the least. A big disadvantage of ● avermectin is that it decomposes easily in the presence of light and oxygen.

Agricultural assistant