First, most biological pesticides have no systemic absorption. Spraying should pay attention to uniform spraying to achieve good results. Such as Beauveria bassiana, the bacteria must be evenly sprayed on the pests, bacteria continue to breed, eventually causing pest metabolic disorders and death.
Second, the role of biological pesticides is slow, it should be used in the young worms of pests. Many biopesticides have a slow insecticide effect, which is not as good as chemical pesticides. Therefore, the use of drugs should be 2-5 days ahead of chemical pesticides. Such as BT emulsion, Beauveria bassiana, etc., generally after spraying, pests 3-5 days gradually died.
Third, pay attention to the weather conditions of spraying. There are some types of biopesticides that are only suitable for the climatic conditions. This kind of pesticide can only fully function. General biological pesticides suitable temperature is 20-30 °C, the greater the humidity the better, at the same time to avoid excessive light conditions, killing beneficial bacteria.
Fourth, when used with the distribution with the use, with a good run out of pesticides, such as Beauveria bassiana, with a good pesticide to be sprayed within 2 hours, so as to avoid premature spore germination, loss of effectiveness.
Fifth, biological pesticides can be mixed with a variety of pesticides, or add a small amount of detergent, can increase its adhesive ability and improve efficacy.
Six, biological pesticides can not be mixed with fungicides, biological pesticides are mostly fungi, and fungicides mixed, the main ingredient of its fungi have also been killed, the pesticide will lose its effect.
Seven, biological pesticides can not be mixed with alkaline pesticides, most of the microorganisms in pesticides live in acidic environment conditions, mixed with alkaline pesticides, it will destroy the living environment of these microorganisms, causing bacteria inactivation, pesticide failure.
VIII. Attention to Storage: The storage location of biological pesticides requires a cool, dry, and moisture-proof failure. Such as Su Yun Jin Strain, Jing Jing, etc., which is characterized by high temperature, intolerant storage, easy to absorb mildew, inactivation failure, and the preservation period can not exceed 2 years.
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