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近日天津植保站根据2011年天津市棉花病虫害发生情况及冬季气候特点等因素综合分析,预计2012年天津市棉花病虫害总体将呈中等程度发生趋势,棉蚜、棉盲蝽、棉花黄萎病局部地块偏重发生。棉铃虫:预计2012年棉铃虫在天津市棉田中等程度发生,二、三代为主害代,预计发生面积75万亩次。由于抗虫棉抗性良莠不齐,植保部门和棉农将密切关注棉铃虫田间发生消长动态。
According to a comprehensive analysis of the occurrence of cotton pests and diseases and the characteristics of winter climate in Tianjin in 2011, it is estimated that the overall incidence of cotton pests and diseases in Tianjin will show a moderate trend in 2012. Cotton aphid, cotton laceworm and cotton wilt are localized Block emphasis occurs. Cotton bollworm: Helicoverpa armigera is estimated to have moderately occurred in cotton fields in Tianjin in 2012, with the second and third generation being the dominant ones, with an estimated area of 750,000 mu. Due to the mixed resistance of cotton, cotton plant protection departments and farmers will pay close attention to the occurrence and decline of cotton bollworm dynamics.