The insecticidal double has a strong contact and stomach toxicity, and has a certain fumigating effect. It can be absorbed and transmitted by crops, especially the roots of crops, and can be transferred to various parts of plants within one day. When pests come into contact with and consume pharmaceuticals, they appear to be slow-moving, stop developing, soften the body, and lose the ability to invade crops, but the efficacy of the drug is slower. Can be used for rice, vegetables, fruit trees and other crops.
Pests that can be controlled by insecticides:
For the leaf miner, the wind butterfly, the cabbage caterpillar, the diamondback moth, the tea mites, the tea moth, the lobular green mites, the rice stem borer, the stem borer, the big cockroach, etc., can effectively prevent and cure.
How to use insecticidal double:
1. Control method of rice leaf roller and rice locust: in the period of 1 to 2 instar larvae, spray with water of 150% to 200 ml of insecticidal double water agent per acre.
2. Control methods for rice stem borer, stem borer and big catfish: spray with water spray of 20% insecticidal double agent 200-250 ml per acre.
3, cabbage caterpillar, Plutella xylostella prevention and control methods: with 25% insecticidal double water agent 100-200 ml per acre spray with water.
Things to be aware of when using insecticides:
The insecticidal pair has not only strong contact and stomach toxicity, but also certain fumigation crops. Therefore, the use of silkworm areas should be paid attention to.
In summer, high-temperature vegetable seedlings are sensitive to insecticidal double reaction and are prone to phytotoxicity. Therefore, it is not advisable to use insecticidal doubles for vegetables in summer.
25% of insecticidal double rice should not be used for more than 3 times, and the safety interval of early rice is 7 days, and the safety interval of late rice is 15 days.
Extinction curing agent extinction principle is to use two different kinds of reactivity of the curing agent system, in which there are a kind of system of curing reactivity, reaction speed, small another system of curing reactivity, slow reaction, two kinds of powder coating film forming matter system and reaction rate differences between the difference of compatibility between the two kinds of reaction products, form the onlookers rough surface on the diffuse reflection and scattering light, and weak reflection power extinction film.
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