摘要
为了评估斜纹夜蛾对甲氧虫酰肼产生抗性的风险,了解甲氧虫酰肼对斜纹夜蛾生物学特性的影响。采用低剂量甲氧虫酰肼对斜纹夜蛾幼虫进行饲毒处理,观察其对斜纹夜蛾生长发育和食物利用的影响。结果表明:低剂量甲氧虫酰肼能抑制斜纹夜蛾当代和子代的生长发育,显著降低幼虫体重和蛹重。从营养指标来看,其幼虫的相对生长率(RGR)、相对取食量(RCR)、食物利用率(ECI)和食物转化率(ECD)均显著低于对照,而近似消化率(AD)则显著高于对照。综合评价认为,低剂量甲氧虫酰肼能显著抑制斜纹夜蛾的生长发育。
In order to evaluate the resistance risk of Spodoptera litura to methoxyfenozide and understand the biological characteristics of Spodoptera litura treated with methoxyfenozide, we raised diet with low dosages of methoxyfenozide to the larvae of Spodoptera litura, investigating its effect on the development and food utilization of Spodoptera litura larva. The results showed that, low dosages of methoxyfenozide could inhibited the growth of insect, significantly decreased larval and pupal weight compared with control. Nutrient indicators showed that, the relative growth rate （RGR）, efficiency of conversion of ingested food （ECI）, relative consumption rate （RCR） and efficiency of conversion of digested food （ECD） were significantly lower than control, and the approximate digestibility （AD） of larvae was significantly higher than control. According to the comprehensive evaluation, low dosages of methoxyfenozide could significantly inhibited the growth of Spodoptera litura.
出处
《中国农学通报》
CSCD
2012年第27期255-259,共5页
Chinese Agricultural Science Bulletin
基金
福州市科技发展基金项目"甘薯抗病新品种选育与示范推广"(2008-N-66)
关键词
斜纹夜蛾
甲氧虫酰肼
低剂量
生长发育
食物利用
Spodoptera litura
methoxyfenozide
low dosages
development
food utilization
