摘要
临沧孟定地区防治橡胶树白粉病采用硫磺粉和粉锈宁烟雾剂交替使用,在古铜叶病率达20%时用粉锈宁烟雾剂作首次中心病区(株)防治;发病率达40%时用粉锈宁烟雾剂作橡胶林全面防治;当抽叶量达50%以上时,用硫磺粉和粉锈宁烟雾剂交替使用(晴天施硫磺粉,阴天施粉锈宁)的技术,大面积防治取得良好效果,相对防效85.9%。
The relative control effect was 85.9% by sulphur dusting and triadimefon by turns on large acreage in Mengding county.The first controlled was made at 20% of infected bronze leaves by sulphur dusting.The overall controlling was made at 40% of infected leaves by spraying triadimefon.The sulphur powder was applied in sunshine , the triadimefon was applied in rain at 50% of refoliation.
出处
《热带农业科技》
2005年第1期41-42,共2页
Tropical Agricultural Science & Technology
关键词
橡胶树白粉病
硫磺粉
粉锈宁
防治
孟定
hevea
powdery mildew
sulphur powder
triadimefon
control
Mengding
