党参叶部病害药剂筛选试验

Screening test of medicine for Codonopsis pilosula leaf diseases

探索党参叶部病害防治的最佳药剂。将50%敌诱钠200倍溶液、25%粉锈宁可湿性粉剂1 000倍溶液、丁硫克百威1 500倍溶液、64%杀毒矾可湿性粉剂600倍溶液、72%克露可湿性粉剂800倍溶液5种不同药剂分别对党参地上部分进行喷洒试验,最后与清水喷洒对照做对比。经对统计第1次与第2次喷药后防治效果、产量等生物指标进行分析,优选党参叶部病害防治的最佳药剂。结果 5种药剂均对党参叶部病害有一定的防治效果,其中25%粉锈宁可湿性粉剂1 000倍溶液的防治效果最佳,2次喷药后10 d其防治效果为96.13%,显著高于其他药剂处理,并且党参产量最高,为489.25 kg/667 m2,增产率达到16.56%。

To explore the best medicine for the control of Codonopsis pilosula leaf diseases,the above ground part of Codonopsis pilosum was sprayed with 5 different agents:50% dioxin sodium 200 times liquid,25% fenruxiu rather wet powder 1 000 times liquid,butyl sulfide carboxylate 1 500 times liquid,64% xietoxalum wettable powder 600 times liquid,72% kluo wettable powder 800 times liquid,and then compared with water spraying as control. After the first and second spraying,the control effect,yield and other biological indicators were analyzed to select the best agent for the control of Codonopsis pilosum leaf diseases. Five kinds of medicament present a certain control effects on Codonopsis pilosum foliar disease,of which 25% fenruxiu rather wet powder 1 000 times liquid was the best,10 days after spraying twice its control effect was 96.13%,which was significantly higher than other treatments. Codonopsis pilosum production was 489.25 kg·667 m-2,which was increased by 16.56%.