The second is to grasp the number of drugs and the number of days, the number of drugs should be based on the duration of spawning. Such as spawning period will last 10 days, the incubation period of 3-5 days, usually when spraying should be the first time since starting, spray once every three days Ha Johnson ULV sprayers, 3-4 times each generation ultra Star capacity sprayer to ensure drug effect. The final step is to select the best spraying time is generally sunny 17:00 after medication, cloudy throughout the day spraying. So what should I pay attention to the use of bio-pesticides in BB class: 1, must be fully shake configuration. Liquid must run out with a good day. 2, the rain fill spray 2710 ULV sprayers, rain after spraying before unhatched eggs but also to fill spray. Pharmacy To save ULV shade, not exposure. 4. Diflubenzuron. Insect growth regulator to stomach the main tag followed. Can control a variety of lepidopteran pests and leaf miner classes. In the young larvae suspending 1500-2000 times spray with 25% diflubenzuron. 5. Diflubenzuron. Also known as the 1st diflubenzuron, diflubenzuron. For specific pesticides. Leafminer larvae can prevent Diptera and Lepidoptera pests crustaceans. Generally young larvae with 5% diflubenzuron EC 1000-2000 times or 25% WP 3000-4000 times spray. Ha Johnson ULV sprayers, Fuzhou Shengwei (certified), ultra low volume provided by the Environmental Technology Co., Ltd. Fuzhou Shengwei. Environmental Technology Co., Ltd. Fuzhou Shengwei (www.fzsw.com.cn) (http://www.fzsw.com.cn) is Fuzhou, insect terminator leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shengwei leadership in Fuzhou with the staff warmly welcome all inquiries negotiations to create Fuzhou Shengwei a better future. You can also access (http://www.fzsw.com.cn/supply_details_41448977.html), for more information about the company.