Control of Copper Sulfate Compound to Tobacco Weather Fleck
Hou Bingqing
Liu Zhongwei
Liu Zhiguang
Yang Tiezhao
Abstract：This test studied the effect of copper sulfate and salicylic acid compound to tobacco weather fleck in field.The results showed that the compound could significantly improve the SOD and POD activity,control the disease occurrence and reduce the disease index.Different concentrations of compound had different control effects to tobacco weather fleck.The best control effect was 74.30％ in Weining county and 76.38％ in Qixingguan.And the compound could improve the component and economic characters of tobacco.The compound should be continuously sprayed 2 ～3 times every 10 to 15 days since resettling stage with the optimum concentration of 1.845 g/L and the best application amount of 50 L per 666.7m2.
Keywords：Tobacco weather fleckCopper sulfate compoundControl
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 92-95 )