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7.水稻大螟坚持“以农业防治措施为基础,化学防治为关键”的防治策略。一是农业防治。清除田边杂草,减少虫卵;避免不同生育期水稻混栽。二是化学防治。采取“巧治二代,狠治三
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7.水稻大螟坚持“以农业防治措施为基础,化学防治为关键”的防治策略。一是农业防治。清除田边杂草,减少虫卵;避免不同生育期水稻混栽。二是化学防治。采取“巧治二代,狠治三代”的防治策略,掌握在卵孵高峰期用药防治。对二代发生量大、且不能与二化螟或稻纵卷叶螟兼治的田块需针对性用药防治;对三代重发地区,卵孵盛期内,掌握在水稻
7. Rice Stem Borer sticking to the “prevention and control measures based on agriculture, chemical control as the key” prevention and control strategies. First, agricultural control. Clear the weeds in the fields, reduce the eggs; avoid different growth stages of rice planted. Second, chemical control. Take “Qiaozhi II, ruthless governance three generations ” prevention and control strategies, control in the egg incubation peak drug prevention and treatment. On the second generation occurred in large quantities, and can not be with rice stem borers or leaf roller control of the field need to be targeted drug prevention and treatment; for three generations of heavy areas, egg hatch, in the rice
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