What are the specific drugs for the control of aphids?

Aphids are a kind of herbivorous insects, also known as greasy insects, honey insects, etc., including all members of the aphid family, most of them are oligophagous or monophagous, and a few are polyphagous. Some species are important pests of economic plants such as grain, cotton, oil, hemp, tea, sugar, vegetables, tobacco, fruit, medicine and trees. Let's take a look at the specific drugs for aphid control.

Malathion

Malathion is a yellow oily liquid, slightly soluble in water and soluble in a variety of organic solvents. As an insecticidal and acaricidal agent with high efficiency, low toxicity and broad spectrum, it has contact, stomach poison and certain fumigation effects on pests, no internal absorption, short residual period, and the general efficacy is 7 days. It is effective for pests of piercing and sucking or chewing door tools, and is suitable for controlling foliar pests of fruit trees, vegetables and other crops, as well as sanitary and storage pests. It has low toxicity to humans and animals, and is highly toxic to bees and fish.

Fenitrothion

Fenitrothion has a good control effect on many kinds of crop pests, such as rice, soybean, cotton, fruit trees, vegetables and so on. Such as Chilo suppressalis, rice planthopper, rice leafhopper, aphids, red spiders, cotton bollworm, soybean heart borer, tea inchworm and so on, the application of 50 grams (active ingredients) per mu has good control effect, but the effect of killing acaricidal eggs is small. Drug damage sometimes occurs to cruciferous vegetables.

Anti-aphid vermicarb

Aldicarb is a selective insecticide with contact, fumigation and foliar penetration, which can effectively control all aphids except cotton aphids and aphids resistant to organophosphorus. It is quick to kill insects, but the residual period is short. It is an ideal agent for crop safety, no damage to natural enemies and comprehensive control.

Deltamethrin

Deltamethrin is one of the most virulent pyrethroid insecticides. it has a good killing effect on many kinds of pests, such as cotton bollworm, red bollworm, cabbage worm, diamondback moth, Spodoptera litura, tobacco green worm, leaf-eating beetle, aphid, blind Toona sinensis, stink bug, leafhopper, heart-eating insect, leaf-eating moth, armyworm, caterpillar, inchworm, bridge insect, armyworm, borer, locust and so on.

Wipe out the profit

Methotrexate is a kind of pyrethroid insecticidal, with contact, stomach poison and certain repellent effect, no internal absorption, its most important feature is that it has excellent control effect on many kinds of harmful mites. It can be used in cotton, fruit trees, tea trees, vegetables and other crops to control pests and harmful mites such as Lepidoptera, Homoptera, Hemiptera, Diptera and Coleoptera, especially when insect mites occur at the same time.

Imidacloprid

Imidacloprid is a nicotine super-efficient insecticide with broad spectrum, high efficiency, low toxicity, low residue, not easy to produce resistance to pests, safe to human, animal, plant and natural enemies, and has multiple effects such as contact, stomach poison and internal inhalation. It is mainly used to control piercing and sucking mouthparts pests, such as aphids, planthoppers, whitefly, leafhoppers, thrips, etc., and is also effective against some pests of Coleoptera, Diptera and Lepidoptera, such as rice weevil, rice negative mud worm, leaf moth and so on.