Dichlorvos, trichlorfon although it can control pests on sorghum, sorghum, but also produce injury. Therefore, when pest control, according to the pest species, developmental stage, habits, crop sensitivity to the agent, the selection of effective agents harmless, which is the key to rational drug use. Timely spraying to kill pests at different developmental stages it easy to do battle on drug resistance is not the same, generally young larvae resistant Worst Fuzhou kill it battles the agents, in particular pests such as moth borer, corn borer and other young larvae in the crop surface, is the best prevention and treatment period, and persistence of pesticides is limited. Therefore, kill it when pest control battle, choose the most effective prevention and treatment of pests period is essential. Here for bollworm to tell you about the types of biological insecticides BB tips: First, to fit it on the drug war Fujian kill agents, from eggs to hatch bollworm generally takes 3-5 days. So the best time in addition to the general rule of medicine is: Most of the time the egg yellow and have a small number of gray. To do this, it must take place in the forecast peak egg five days before the start date, every afternoon to observe the eggs and egg in cotton color change, the best time to seize drug medication. Rodenticides - battle to kill it, kill it battle, Fuzhou Shi Jie pest control provided by the Environmental Technology Co., Ltd. Fuzhou Shengwei. Environmental Technology Co., Ltd. Fuzhou Shengwei (www.fzsw.com.cn) strong, credible, in Fuzhou, Fujian insecticide Miehai industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Fuzhou Shengwei and you hand into the brilliant, for a better future!