Pesticides Virulence: immersion method. The test insects were placed in different concentrations of diluted liquid dipping a bit, immediately remove the regulator wholesalers on absorbent paper to absorb excess liquid, into containers in each group quality regulator, give fresh leaves as feed prices regulator, stamped on the container gauze or gauze, keeping the room, recording room, poisoning cases were observed at different times. Pesticides Virulence: drip method. With quantitative liquid droplets, dropping in the chest on the back of the test insects, then the timing of poisoning deaths were observed. Advantages of this method are: the amount of drug available dose (commonly micrograms) per gram of parasites accepted indications, dosage is easy to control, the experimental error is small; disadvantage is time-consuming, handling of the solvent used, bit location and size of the droplets and so can affect virulence. When using this law regulators should consider these factors, as far as possible to reach consensus in order to get accurate results. Quality regulator, regulator, red medicine provided by Anyang Hongqi Pharmaceutical Company Limited. Anyang Hongqi Pharmaceutical Co., Ltd. (www.ayhqyy.com) strong, credible, Anyang in other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the flag into the brilliant medicine and you work for a better future!