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The matrine pesticide used in agriculture actually refers to all the substances extracted from Sophora flavescens, called Sophora flavescens extract or Sophora flavescens total base. It is widely used in agriculture and has good control effect. It is a low-toxic, low-residue and 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.

The characteristics of matrine as a biological pesticide:

First, matrine is a plant-derived pesticide that has specific and natural characteristics and only acts on specific organisms. It can be rapidly decomposed in nature, and the final product is carbon dioxide and water. Secondly, matrine is an endogenous chemical substance that is active against harmful organisms. The components are not single, but the combination of multiple groups with similar chemical structures and different chemical structures are complementary to each other and play a role together. Third, matrine, because of the combination of various chemical substances, makes it difficult to cause harmful substances to develop resistance and can be used for a long time. Fourth, the corresponding pests will not be directly poisoned, but the control of the pest population will not seriously affect the production and reproduction of the plant population. This mechanism and the principle of pest control in the integrated control system after decades of research on the protective side effects of chemical pesticides are very similar. In summary, it can be explained that matrine is obviously different from general high-toxic and high-residue chemical pesticides, and it is very green and environmentally friendly.

1. Forest leaf-eating pests such as various pine caterpillars, poplars, and white storks are uniformly sprayed with 1% matrine soluble liquid 1000-1500 times in the 2-3 instar larvae.

2. Tea caterpillars, jujube butterfly, gold-grained moths and other fruit tree leaf-feeding pests are evenly sprayed with 1% matrine soluble liquid agent 800-1200 times.

3. Pieris rapae: About 7 days after the peak of adult spawning, the larvae are controlled at 2-3 years old, using 0.3% matrine water 500-700 ml per acre and 40-50 kg of water for spraying. This product has a good effect on young larvae and is less sensitive to 4-5 instar larvae.