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First, avoid using poor quality drugs should be purchased from the regular manufacturers and sales of pesticides to prevent counterfeiting, and pay attention to the production date of drugs and the useful life of the drug storage and reasonable storage to prevent expired failure. In addition, the general normal pharmaceutical products have a certain amount of bacteria, there should be no odor when opening the lid, and sometimes there will be taro (culture material), and expired or fake products often produce odor or no smell .
Second, avoid the use of low-temperature bacterial biocide active ingredients are protein crystals and alive buds full. At low temperature, buds propagate slowly in pests and protein crystals do not work well. The ambient temperature is generally suitable at 10~35°C. If the temperature is too low, it will affect the food intake of insects and the control effect will be worse.
Third, avoid dry environment Bacteria in the bio-insecticide buds hi humid environment, so the greater the humidity when used in the field, the higher the efficacy, especially pesticides spraying powdered biological agents should pay attention to field humidity. The powder is usually sprayed with dew in early morning and early evening.
Fourth, bogey sunlight in the strong ultraviolet rays on the buds have a killing effect, if the strong ultraviolet light will kill the bacteria. Therefore, the application of bacterial biopesticides should be carried out on a cloudy or weakly lighted ground. It is generally administered on a sunny day before 10 o'clock in the morning or in the evening.
Fifth, avoid heavy rain after spraying bacterial biopesticides spraying, in the event of moderate to heavy rain, will spray on the crop stems and leaves leaching off bacteria and reduce efficacy. However, if light rain occurs after 5 hours of application, it will not only reduce the control effect, but also have a synergistic effect.
6. Avoid mixing with fungicides Bacterial biopesticides must not be mixed with fungicides (such as carbendazim, thiophanate, etc.), otherwise they will easily lead to a serious reduction in the number of bacteria in the drug, thus affecting the insecticidal effect. Therefore, even sprayers that have been sprayed with a bactericidal agent must be rinsed clean before assembling bacterial biocidal agents.
Using Bacterial Biopesticides "Six Taboos"
Bacterial bio-pesticides have the advantages of high insecticidal rate, no pollution to the environment, safety to natural enemies, no harm to humans and animals, and no resistance to pests. It is a new type of protective agent that is popularized and used for pollution-free cultivation because of its control effect. It mainly depends on the activity of the bacteria in the drug. Therefore, it is necessary to pay attention to the following points when using it: