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通过越冬调查和二化螟性诱剂相结合的方法,研究了收割方式(机械收割、人工收割)和稻茬处理(翻耕、板田)对二化螟越冬的影响。结果表明:机械收割板田区二化螟越冬虫量最大,冬前和冬后越冬虫量高达2 672和2 457头/667m2,机械收割后翻耕种菜区越冬虫量最小,且各处理区二化螟性诱剂诱捕量和冬后越冬基数成正相关关系,机械收割板田区诱捕二化螟的数量显著高于其他处理区诱捕量,平均每盆诱捕二化螟高达53头;剥秆调查表明机械收割区有虫株的单株虫量和存活率显著高于人工收割区,可能与机械收割区的稻茬高度均显著高于人工收割区有关,这说明降低稻茬收割高度和稻茬翻耕处理有利于降低二化螟越冬虫量。
The effects of harvesting (mechanical harvesting, artificial harvesting) and rice stubble treatment (tillage and paddy field) on the overwintering of the rice stem borer, Chilo suppressalisture, were studied through a combination of wintering surveys and sequestration of rice stem borer (Chilo suppressalis). The results showed that the amount of overwintering stem borers was the highest in Bantai of mechanical harvesting area, the number of overwintering pests was as high as 2 672 and 2 457 / 667m2 before and after winter harvesting, The amount of trapping induced by the sex insecticide was positively correlated with the number of winter wintering. The amount of trapping the stem borer in Bantao District was significantly higher than that in other treatments. The average number of stem borer was 53 in each pot. The survey showed that the number of insect pests per plant and the survival rate were significantly higher in mechanical harvesting area than in artificial harvesting area, which may be related to the height of rice stubble in mechanical harvesting area was significantly higher than that in artificial harvesting area, which indicated that reducing the harvesting height of stubble rice and rice Tillage plowing treatment is conducive to reducing the amount of stem borer borer.