Research On Scientific Application Of Chemicals For Controlling Of Stored Grain Insects In Southern China

With the improvement of people’s living standard, people pay more and more attention tofood safety issues. Food is a necessity of people’s daily life, is an impotant source food, mustensure that the food is not affected by the chemical pollution, comply with safety standards.While in the process of grain storage, inevitably for chemical control of pests in stored grain.In order to meet the need of green grain storage, to ensure the food is not contaminated,should as far as possible do not use chemicals or less use of chemicals. In the Southern Chinaarea, especially the Guangdong Pearl River Delta region, the perennial high temperature andhumidity, serious occurrence of stored grain pests, pest prevention and arduous task, withoutthe use of chemicals is difficult to control pests in stored grain, and chemical agents availableand very little, only the phosphine is available, coupled with the long-term irrational use ofphosphine in pest resistance more and more serious, more intensified the pest control workdifficulty. Therefore, in order to effectively control stored grain insects, the reasonable usageof phosphine, be scientific and rational drug use.This paper discusses the different application methods on the warehouse, theshallow silo, solves the fumigation daily in the prevention and control of time is difficult tograsp, warehouse local tightness bad, dosage is large, serious problems of pest resistance, andproposed to take regular and sustained release spraying method to control stored grain pests,more conventional sustained release dosage fumigation to deal with "hot skin cold core" grainfumigation problems such as control strategies, so as to rational use of Science in SouthernChina, provide references for the effective control of stored grain insects.