油菜蚜虫防控技术研究

Research on the Prevention and Control Technology of Rape Aphids

[目的]筛选适宜云南主要油菜产区的抗(耐)蚜虫品种及经济有效环保的防治药剂。[方法]对22份云南主推品种、国内新育成品种及核心育种材料进行6种抗蚜虫药剂的药效试验。[结果]云油双1号、花油4号、云花油早熟1号、A35等品种抗蚜性较好,播种时施用地蚜灵预防,花角期交替使用烯啶虫胺和吡虫啉等药剂防治。[结论]该研究结果为油菜产业的可持续发展提供了重要技术保障。

[Objective]The aim was to screen the economic and environment-friendly pesticides adaptive to the aphid-resistant varieties in the 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.