Recently, strong convection weather such as short-term heavy rainfall and short-term strong wind occurred in many places in Hebei Province. At present, it is the critical time of the middle-late period of cotton management, and the environment of cotton field with high temperature and high humidity after rain is easy to cause the outbreak of diseases and pests.

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From August 10 to 11, associate researcher AN Jingjie, and associate researcher GENG Yaling from Plant Protection Institute of HAAFS, along with the provincial cotton industry technical system disease and pest control experts and researcher of HAAFS, LI Yaofa, went to Hengshui, Cangzhou, Tangshan comprehensive test station to investigate the occurrence of diseases, insect pests and weed after rain in cotton fields and provide emergency technical services.

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In view of the high field humidity after rain, which is easy to lead to cotton rot disease, experts put forward that the ditch should be cleared in time to reduce soil moisture and improve field microclimate. Fungicides such as thiophanate-methyl and pyraclostrobin should be sprayed on leaf surface to prevent the occurrence and spread of diseases. In view of the recent serious occurrence of insect pests such as mirid and beet armyworm in some cotton areas, insecticides such as sulfoxaflor and chlorantraniliprole should be sprayed in time according to the actual situation in the field to control the harm of insect pests. For the contiguous cotton field, insecticides should be used from the periphery to prevent the spread of pests.

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The emergency service strengthened the coordination and interaction between the cotton industry system experts and the test station in serving cotton production, and escorted the safe production of cotton in Hebei.

（Source from www.hebnky.com）