[Objective] The aim was to screen economic and environment-friendly pesticides adaptive to aphid-resistant varieties in main rape growing regions of Yunnan Province.[Method] The effects of 6 pesticides against aphids ...[Objective] The aim was to screen economic and environment-friendly pesticides adaptive to aphid-resistant varieties in main rape growing regions of Yunnan Province.[Method] The effects of 6 pesticides against aphids on 22 Brassica campestris materials of the main breeds in Yunnan Province,the new improved varieties in China and the core breeding materials were tested.[Result] Yunyoushuang 1,Huayou 4,Yunhuayou Early-maturing Variety No.1 and A35 showed better aphid-resistance.An optimum pesticide application strategy was to use Diyaling in sowing time,and interchangeably apply nitenpyram and imidacloprid during flowering and pod formation stages.[Conclusion] The present study had provided an important technical support for sustainable development of rape industry.展开更多
缢管蚜小蜂Aphelinus rhopalosiphagus Yang et Chen是根型蚜红腹缢管蚜的专性寄生蜂。1989年调查,该蜂对红腹缢管蚜寄生率31.37～84.03％。1993～1994年在文山陆稻区系统调查,该蜂在陆稻上始见于6月中旬,终见于11月中旬,寄生高峰集中在...缢管蚜小蜂Aphelinus rhopalosiphagus Yang et Chen是根型蚜红腹缢管蚜的专性寄生蜂。1989年调查,该蜂对红腹缢管蚜寄生率31.37～84.03％。1993～1994年在文山陆稻区系统调查,该蜂在陆稻上始见于6月中旬,终见于11月中旬,寄生高峰集中在7月上旬～8月上旬;高峰期寄生率达55.28～80.75％。冬季缢管蚜小蜂主要分布在海拔740～1289M菜园地、麦田地,寄生于取食棒头草、看麦娘、冬小麦根部的红腹缢管蚜。展开更多
基金Supported by National Science and Technology Supporting Project (2009BADA8B01,2010BAD01B04)Kunming Comprehensive Experimental Station,National Modern Agricultural Rape Industrial Technology System(NYCYTX-00564)Development of the Yunnan Modern Agricultural Rape Industrial Technology System~~
文摘[Objective] The aim was to screen economic and environment-friendly pesticides adaptive to aphid-resistant varieties in main rape growing regions of Yunnan Province.[Method] The effects of 6 pesticides against aphids on 22 Brassica campestris materials of the main breeds in Yunnan Province,the new improved varieties in China and the core breeding materials were tested.[Result] Yunyoushuang 1,Huayou 4,Yunhuayou Early-maturing Variety No.1 and A35 showed better aphid-resistance.An optimum pesticide application strategy was to use Diyaling in sowing time,and interchangeably apply nitenpyram and imidacloprid during flowering and pod formation stages.[Conclusion] The present study had provided an important technical support for sustainable development of rape industry.
文摘缢管蚜小蜂Aphelinus rhopalosiphagus Yang et Chen是根型蚜红腹缢管蚜的专性寄生蜂。1989年调查,该蜂对红腹缢管蚜寄生率31.37～84.03％。1993～1994年在文山陆稻区系统调查,该蜂在陆稻上始见于6月中旬,终见于11月中旬,寄生高峰集中在7月上旬～8月上旬;高峰期寄生率达55.28～80.75％。冬季缢管蚜小蜂主要分布在海拔740～1289M菜园地、麦田地,寄生于取食棒头草、看麦娘、冬小麦根部的红腹缢管蚜。
