Bacterial pesticides are an important one in pesticides today. They have good effects and have little impact on the environment. However, if it is not used properly, it will cause some losses. This article will introduce you to five points that should be paid attention to when applying bacterial pesticides. First, look at the sun: In order to reduce the damage of ultraviolet light on bacterial spores in the sun, the use of bacterial pesticides is best carried out on cloudy days or after 4 pm, if you can add raw molasses or corn syrup to the powdery bacteria pesticides, Filtration of ultraviolet light has a certain effect. Second, look at the temperature: the appropriate temperature for the use of bacterial pesticides is above 25 °C. When the temperature is low to a certain extent, the insecticidal effect is completely lost. Bacterial pesticides are used at 25 ° C to 30 ° C, and the control ratio is 1 to 2 times higher at 10 ° C to 15 ° C. Therefore, it is best not to use bacterial pesticides when the temperature is lower than 20 °C. Third, look at the humidity: the greater the environmental humidity, the better the efficacy of bacterial pesticides. Therefore, the use of bacterial pesticides should be carried out in the morning and evening with dew, in order to facilitate the adhesion of the microbial agents to the stems and leaves, and promote spore reproduction, increasing the chance of contact with pests. In addition, the moister soil helps the adsorption of the microbial agent, thereby improving the insecticidal effect. Fourth, look at the wind: the wind and the days of bacterial pesticides waste, especially the powder, lost more. At the same time, windy days are not conducive to the germination of spores. Therefore, bacterial pesticides should be applied in the absence of wind or breeze. Fifth, look at the rain: medium to heavy rain will wash the bacteria and pesticides sprayed on the stems and leaves of the plants, reducing the control effect. If it is drizzled 5 hours after spraying, it will increase the effect of prevention. In order to ensure the efficacy of the drug, it should be applied on a cloudy or light rainy day without any moderate or heavy rain within 1 to 2 days after application. If it is heavy rain after application, it should be applied immediately after the rain. At this time, the insecticidal effect is best. More pesticide knowledge , please pay attention to China Pesticide Network
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