In recent years, more and more micro-biological pesticides cause for concern, with its unique advantages microbial pesticides are rapidly occupied the market, then the friends of farmers in the use of microbial pesticides need to pay attention to what areas?
Controlling the humidity The activity of microbial pesticides is closely related to humidity. The greater the farmland environment humidity, the more obvious the drug effect, especially the powdery microbial pesticides. It is best to apply the medicine when the dew is not dry in the morning and evening, so that the microorganisms can rapidly multiply and play a better control effect.
Avoid the violent killing effect of ultraviolet light on microbial pesticides. In direct sunlight for 30 minutes and 60 minutes, the microbial mortality rate can reach 50% and 80%. It is best to choose a cloudy or evening application.
Avoid rainwater after washing and spraying, which is beneficial to the reproduction of active tissues in microbial pesticides , and will not affect the efficacy. However, the rainstorm will wash away the liquid sprayed on the crops, affecting the control effect. According to the local weather forecast, timely application of drugs, avoid heavy rain and heavy rain to ensure insecticidal effect.
In addition, the virus-based microbial pesticides are highly specific and generally only act on one pest and have no effect on other pests. For example, the Plutella xylostella granulosis virus can only be used to control Plutella xylostella. Before use, we must first investigate the occurrence of pests in the field, arrange the prevention and treatment period according to the occurrence of pests, and timely use the medicine.
More pesticide knowledge , please pay attention to China Pesticide Network
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