The selection of suitable pesticide varieties is an important measure to control vegetable pests, reduce pesticide residues and ensure food safety. Here are a few new high-efficiency and low-toxic vegetable field insecticides .
1. Rice full of rice is 20% suspending agent. This medicine is an insect molting accelerator biomimetic pesticide. It can promote the peeling of lepidopteran larvae, leading to dehydration of larvae, inhibition of feeding, and ultimately hunger and death. Rice is full of high potency and long-lasting effect, and is effective for all ages of larvae. It mainly controls beet armyworm, Spodoptera litura, cabbage moth, cabbage caterpillar, etc., but has poor control effect against Plutella xylostella. It is usually sprayed with 1500-2000 times of the agent during the larval stage.
Second, the dish is a 2.5% suspension agent, which is a biological agent, mainly acting on the central nervous system of insects. It has stomach poisoning and contact killing effect, and can effectively control the diamondback moth and the thrips. Generally, the Plutella xylostella larvae are sprayed with 1000-1500 times of liquid at the young age or in the early stage of the thrips.
Third, in addition to the name insect nitrile, is 10% suspension. The agent acts on the mitochondria of cells in the insect body and acts through a multifunctional oxidase in the insect body, mainly inhibiting the conversion of adenosine diphosphate to adenosine triphosphate. The drug has strong permeability, certain systemic action, wide insecticidal spectrum, high control effect and long-lasting effect. It is possible to control resistant pests. It can effectively control Plutella xylostella, Pieris rapae, beet armyworm, Spodoptera litura, rapeseed meal, rapeseed meal, spotted fly, and thrips. Use 10% of the crop to remove 30-50 ml, add water spray.
Fourth, the suppression of Taibao, also known as the worm, is 5% emulsifiable concentrate. Mainly due to stomach toxicity, both contact and killing, no systemic. The mechanism of action is mainly to inhibit the synthesis of chitin in insects and hinder normal molting. It mainly controls Plutella xylostella, Pieris rapae, Bean Wild Donkey, Spodoptera litura, Ground Tiger, and 28-star ladybug. It is usually sprayed with 1000-1500 times liquid during the egg hatching period to the younger larva stage.
5. Ethyl pyrethroid, also known as Tolo, is a 10% suspension. The agent is an ether compound and is named for its similarity to the pyrethroid of the pyrethroid. It has high insecticidal activity, fast knockdown and long lasting effect. It has contact and stomach toxicity to pests. It has special effects on cabbage caterpillar, diamondback moth, beet armyworm and rapeseed. Generally, the larvae are evenly sprayed with 1500 times of the product at the age of 2 years.
More pesticide knowledge , please pay attention to China Pesticide Network
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