Points for attention in the use of avermectin
Avermectin is a widely used agricultural or animal germicidal, insecticidal and acaricidal agent, also known as amudine. So we all know that these chemicals are toxic to a certain extent, so what do we pay attention to when using avermectin? We might as well get to know it together.
I. points for attention in the use of avermectin
1. Protective measures should be taken when applying medicine, wearing a good mask and so on.
2. Highly toxic to fish, pollution of water sources and ponds should be avoided.
3. It was highly toxic to silkworms, and the mulberry leaves had obvious toxic effect on silkworms 40 days after spraying.
4. It is poisonous to bees and should not be used during flowering.
5. The last application should be at least 20 days apart from the harvest time.
II. Usage of avermectin
1 、? Control of Plutella xylostella and Pieris rapae: the damage can be effectively controlled by using 1000-1500 times 2% avermectin EC + 1000 times 1% methyl salt in young larvae. after 14 days, the control effect on Plutella xylostella is still 90%, and the control effect on Pieris rapae is more than 95%.
2 、? Control pests such as Liriomyza huidobrensis, Liriomyza huidobrensis, Liriomyza huidobrensis and vegetable whitefly: 3000-5000 times 1.8% avermectin EC + 1000 times high chlorine spray was used during the peak egg incubation period and larval occurrence period, and the control effect was still more than 90% 7-10 days after treatment.
3. Control beet armyworm: with 1000 times 1.8% avermectin EC, the control effect is still more than 90% after 7-10 days.
4. Control leaf mites, gall mites, tea yellow mites and various resistant aphids of fruit trees, vegetables, grain and other crops: use 4000-6000 times 1.8% avermectin EC spray.
5. Control vegetable root-knot nematode disease: use 500 milliliters per mu, and the control effect is 80-90%.
The above are the matters needing attention in the use of avermectin sorted out by Tuliu.com. I hope it will be helpful to you.
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