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广西良圻蔗区甘蔗螟虫普遍发生,为害较为严重。2010年全蔗区使用20%氯虫苯甲酰胺SC防治螟虫。经调查,甘蔗苗期施药1次,施药区平均枯心率为5.51%,未施药对照区枯心率为11.39%,相对防效为51.62%;施药区风折、死尾率为4.53%,对照区为7.70%,相对防效为41.17%;施药区产量较对照区提高0.39 t/667m~2。经调查、折算与效益分析,使用氯虫苯甲酰胺防治甘蔗螟虫后,全蔗区蔗农减少产量损失1.41万t,增加收益291.88万元;糖厂减少糖分损失1 694 t,增加收益908.7万元。
Sugarcane borers in Liangzhe sugarcane area in Guangxi Province are common occurrences, causing serious damage. 2010 whole sugarcane area using 20% of chlorantraniliprole SC control stem borer. After investigation, sugarcane seedlings were applied once, the average dry heart rate in the application area was 5.51%, the dead heart rate in the non-applied control area was 11.39%, and the relative control effect was 51.62%. The wind-folding and dead-end rate in the application area was 4.53 %, The control area was 7.70%, the relative control effect was 41.17%; the yield of the application area was 0.39 t / 667m ~ 2 higher than the control area. After investigation, conversion and benefit analysis, after the use of chlorantraniliprole to control sugarcane borers, the sugarcane farmers in the whole sugarcane area reduced the output loss by 14,100 tons and increased the income by 2,918,800 yuan; the sugar plant reduced the loss of 1,694 tons of sugars and increased the income by 9.087 million yuan .