Bacterial pesticides are biological pesticides with high insecticidal rate, no pollution to the environment, no poisoning of humans and animals, and no resistance to pests. However, the insecticidal action of bacterial pesticides is related to the number and activity of bacteria. When used, the meteorological conditions are very strict. To improve the biological efficacy of bacterial bio-pesticide, the following problems must be paid attention to when using. Temperature condition Bacterial biopesticides are suitably sprayed at temperatures between 20 and 30 degrees Celsius because the active ingredients of such pesticides are protein crystals and living spores. At low temperatures, spores propagate very slowly in pests, protein crystals are also less likely to act, and bacterial biologics are applied above and below 25-30 degrees Celsius, and the potency is 1-2 times higher than at 10-15 degrees Celsius. Temperature condition The use of bacterial biologics pesticides, the greater the environmental humidity, the higher the efficacy, especially with powdered biological pesticides. Because the bacterial spores are not resistant to dry environmental conditions, the sprayed bacterial powder should be carried out in the morning and evening when dew is present, so as to facilitate the adhesion of the microbial agent to the base leaves, and promote spore reproduction and improve the efficacy. Sunlight condition Ultraviolet rays in the sun have a killing effect on spores. Direct sunlight exposure for 30 minutes, the spore mortality rate is about 50%, and the mortality rate after exposure for 1 hour is as high as 80%. In addition, ultraviolet radiation also has a deformation-reducing effect on the parasporal crystals. Therefore, it is best to apply the biologic pesticides after 5 pm or on cloudy days. Rain conditions Medium to heavy rain will wash away the bacteria sprayed on the foliage to reduce the efficacy. However, if it is light rain after 5 hours of application, it will not only reduce the control effect, but also have a synergistic effect. Sodium Chloride Sodium Chloride,Sodium Chloride Snow Melting,Industrial Sodium Chloride,Solid Sodium Chloride WEIFANG MELTWAY CO., LTD , http://www.globalmeltway.com