中国稻米
中國稻米
중국도미
CHINA RICE
2014年
4期
94-97
,共4页
水稻%穗期%大螟%药剂%防治效果
水稻%穗期%大螟%藥劑%防治效果
수도%수기%대명%약제%방치효과
rice%panicle stage%Sesamia inferens walker%pesticide%control effect
为有效控制水稻穗期大螟的危害,笔者针对性地开展了不同药剂、喷液量和用药时间等田间试验示范。结果表明,氯虫苯甲酰胺、稻丰散、阿维·二嗪磷、阿维·三唑磷、阿维·杀螟松、乐果·三唑磷和唑磷·敌百虫等对大螟均具有理想的防治效果,可作为水稻穗期大螟的防治药剂。其中,氯虫苯甲酰胺和稻丰散不仅在大螟卵孵期使用效果好,而且对低龄幼虫的杀灭效果也较明显。在常规喷雾施药时,每hm2的喷液量以1000 kg较为适宜。大螟偏重发生时,宜在卵孵始盛与高峰期连续用药2次,必要时,在低龄幼虫高峰期或田间危害始见期,再复查补充用药1次。
為有效控製水稻穗期大螟的危害,筆者針對性地開展瞭不同藥劑、噴液量和用藥時間等田間試驗示範。結果錶明,氯蟲苯甲酰胺、稻豐散、阿維·二嗪燐、阿維·三唑燐、阿維·殺螟鬆、樂果·三唑燐和唑燐·敵百蟲等對大螟均具有理想的防治效果,可作為水稻穗期大螟的防治藥劑。其中,氯蟲苯甲酰胺和稻豐散不僅在大螟卵孵期使用效果好,而且對低齡幼蟲的殺滅效果也較明顯。在常規噴霧施藥時,每hm2的噴液量以1000 kg較為適宜。大螟偏重髮生時,宜在卵孵始盛與高峰期連續用藥2次,必要時,在低齡幼蟲高峰期或田間危害始見期,再複查補充用藥1次。
위유효공제수도수기대명적위해,필자침대성지개전료불동약제、분액량화용약시간등전간시험시범。결과표명,록충분갑선알、도봉산、아유·이진린、아유·삼서린、아유·살명송、악과·삼서린화서린·활백충등대대명균구유이상적방치효과,가작위수도수기대명적방치약제。기중,록충분갑선알화도봉산불부재대명란부기사용효과호,이차대저령유충적살멸효과야교명현。재상규분무시약시,매hm2적분액량이1000 kg교위괄의。대명편중발생시,의재란부시성여고봉기련속용약2차,필요시,재저령유충고봉기혹전간위해시견기,재복사보충용약1차。
Comparative experiment of pesticides, spray volume and control date were performed in the field in order to control the Sesamia inferens at rice panicle stage. The results showed that the control effects of several pesticides against sesamia inferens at rice panicle stage were good, including chlorantraniliprole, phenthoate, avermectins·diazinon, avermectins·triazophos, avermectins·sum-ithion, dimethoate·triazophos and triazophos·dipterex. Among these pesticides, chlorantraniliprole and phenthoate have obvious control effects at both egg hatching stage and low instar larvae stage. We suggest that the spray volume of water should be 1000 kg per hm 2. When Sesamia inferens occurred seriously, pesticides should be sprayed twice consecutively at the beginning and the peak period of egg hatching. If necessary, the pesticides should be sprayed at the peak period of low instar larvae.