Biological pesticides mainly include plant-derived pesticides, microbial-source pesticides, natural enemy biological pesticides, biochemical pesticides, etc., and are environmentally friendly pesticides. Before using bio-pesticide, we must first understand its characteristics, give full play to its advantages, and find environmental factors to overcome its shortcomings.
The main advantages of using bio-pesticides:
First, it is safe for humans and animals. Most biological pesticides are low-toxic or slightly toxic, and are not easily toxic to users;
Second, it is more conducive to the quality and safety of agricultural products. Biological pesticides are easy to decompose, and it is not easy to pollute agricultural products. The production of agricultural products is safe and secure.
Third, the pollution is small, and the ecological balance will not be destroyed. Most bio-pesticide is highly selective, and it is only effective against pests and diseases, does not harm bees, birds, fish, frogs, and is easy to decompose, and returns to the natural world after use;
Fourth, it is not easy to produce drug resistance.
The main disadvantages of using bio- pesticides :
First, it is highly specific and generally only acts on one pest and has no effect on other pests;
Second, the temperature and humidity requirements are higher, and the suitable temperature for the use of microbial pesticides is 15-30 °C. Beyond this range, the biopesticide is slow to propagate in the pests, and the required humidity is relatively high, and the farmland environment humidity is higher. The more obvious the effect;
Third, it is sensitive to ultraviolet light. UV rays have a lethal killing effect on microbial pesticides. It is best to choose cloudy or evening application;
Fourth, the efficacy is slow, and the pests and diseases will not be effective immediately after administration. The application time should be 2-3 days earlier than the chemical pesticides.
The China Pesticide Network recommends the establishment of a bio-pesticide prevention and control technology and consultation network for local farmers. Through specific demonstrations and demonstrations, the farmers will be shown the advantages and benefits of biological control, and the national bio-pesticide demonstration and promotion project subsidies will be used to promote bio-pesticide.
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