Bacterial pesticides are biological agents. The insecticidal effect is related to the quantity and activity of bacteria. When using them, the weather conditions are more stringent. The following matters must be observed when using them. First, the temperature: suitable temperature is above 20 °C. If the temperature is low, the active spores of bacterial pesticides are slow to propagate in insect pests, and active proteins do not work well. According to tests, they are applied at 25-30°C, and the efficacy is 1-2 times higher than that at 12-15°C. . Second, the humidity: the greater the environmental humidity, the higher the efficacy, especially the application of powdered bacterial pesticides. The main reason is that the spores of bacteria are not dry. Therefore, the application of powdered bacterial pesticides should be carried out in the morning and evening with dew, so that the bacteria can better adhere to the stems and leaves of the crop, and promote spores breeding, increasing the chance of contact with pests. Third, the sun: ultraviolet rays in the sun have a killing effect on spores, when the direct sunlight for 30 minutes, the spores will die 50%, irradiation for 1 hour, the mortality rate of up to 80%. In addition, ultraviolet radiation has a deformation and degrading effect on parasporal crystals. Therefore, it should be applied after 4 pm or on a cloudy day. 4. Rainwater: Heavy rain after application will reduce the efficacy, but drizzle at 5 hours after application will not only reduce the efficacy but also increase the efficacy of the drug. Due to drizzle, it promotes spore activity and accelerates the death of pests. Therefore, the application of bacterial pesticides should be combined with the local weather forecast to ensure that there is no moderate rain or heavy rain within 1-2 days after application. If there is heavy rain after application, apply immediately after the rain; supplemental application at this time will have better insecticidal effect.
Bulk of varicella vaccine,semi-Finished Products.It has good safety with low ratio in adverse reaction. And it has been exported to Bangladesh.
In 2008, BCHT successfully launched its product Varicella Vaccine, Live in China. In the following years, BCHT continuously committed to improving the product and led in 2010 removal of gelatin from adjuvant and extended the vaccine shelf-life up to 36 months which is the longest one in the world in 2011. And it has the following qualities.
Biotechnology Bioproducts Preventive,Final Bulk Medicine Preventive,Final Bulk Pharmaceutical Preventive,Vaccine Biological Products Preventive Changchun BCHT Biotechnology Co. , https://www.ccbcht.com
