Sophora flavescens and Kushen extract - Natural Chemicals & Compounds
Matrine
It is made from the dried roots, plants and fruits of the leguminous plant Sophora flavescens by organic solvents such as ethanol. It is an alkaloid. In recent years, it has been widely used in agriculture and has good control effects. It is a low-toxic, low-residue, environmentally-friendly pesticide. It mainly controls various pests such as pine caterpillars, tea caterpillars and cabbage caterpillars. It has many functions such as insecticidal activity, bactericidal activity, and regulation of plant growth function.
Bacillus thuringiensis
Abbreviated as Bt, it is a type of Bacillus licheniformis that includes many varieties. The bacterium produces two major toxoids, endotoxin (with crystals) and exotoxin, which stop the pests from feeding, and finally the worms die from hunger and poisoning. Therefore, the bacterium can be used as a microbial low-toxic insecticide for controlling a variety of pests of Orthoptera, Coleoptera, Diptera, Hymenoptera, especially Lepidoptera.
Beauveria bassiana
It is a kind of entomopathogenic fungus with a wide range of parasitic spectrum and is a contact microbial insecticide. The control objects include corn borer, pine caterpillar, various scarabs, rice leafhopper, planthopper, mulberry, tea leafhopper, tea caterpillar, soybean borer and aphid, especially for corn borer and pine caterpillar. The means are used year after year.
Nuclear polyhedrosis virus
A group of insect viruses. This type of virus and cytoplasmic polymorphism virus can only be found on a limited number of insects. Because it has a great influence on other organisms and has a huge insecticidal power, it is also used as a biological pesticide for controlling forest pests (such as cypress leaf moth).
Biomimetic pesticide
Allicin
Allicin is a plant biomimetic pesticide, and the content of the general preparation is 80% of allicin. It uses garlic extract, which has low price and good quick-acting effect. It can quickly kill bacteria after treatment. Not only can it inhibit fungal bacteria, but it can also stimulate the growth of crops. Although it is an old medicine, it will be wonderful if it is used well. Triazole + 80% allicin, the control effect can be increased by more than 40% after mixing.
Insecticidal and insecticidal
They are all analogs of synthetic silkworm toxins. The insecticidal tablets have strong contact, stomach and systemic conduction effects, and have good control effects on larvae of lepidopteran pests. The drug is mainly used to control sugarcane. Pests on crops such as rice. Insecticidal is a nerve agent that exhibits dullness, slowness of movement, loss of ability to invade crops, cessation of development, softening of the worms, paralysis, and death after insect contact and feeding. The insecticidal double has a strong systemic action and can be absorbed and transmitted by the leaves and roots of the crop. At the same dose, the insecticidal effect is twice as high as the insecticidal double.
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