99.8硫磺粉熏蒸加喷咪酰胺对棚室草莓白粉病的影响

摘要

为消除棚室草莓白粉病，以抗性较差、易感白粉病的草莓品种红脸颊作为试验品种，使用99.8%硫磺粉熏蒸、99.8%硫磺粉熏蒸后加喷施15%咪酰胺微乳剂800倍液，在不同时间段用两种不同方法做试验对比.结果表明：用99.8%硫磺粉熏蒸，可以有效预防白粉病的蔓延及扩大，防治效果达33.59%，结合喷施15%咪酰胺微乳剂800倍液，防治效果可达100%.%　　In order to eliminate greenhouse strawberry powdery mildew ,taking weak resistance and susceptible to powdery mildew of strawberry variety red cheeks as test material ,the comparison test was conducted at dif-ferent stage by two different methods of using 99 .8% sulphur fumigation and 99 .8% sulfur powder fumigation with spraying 15% prochloraz micro-emulsion 800 times liquid amide .The results showed that 99 .8% of sul-phur fumigation could effectively prevent the spreading and expanding of powdery mildew ,the prevention and control effect was 33 .59% .Combing with spraying 15% microphone amide micro-emulsion 800 times fluid ,the control effect could reach 100% .