绿菌铜防治柑桔疮痂病田间药效试验

Field Trial of a New Fungicide cheshunt-carbendazim in the Control of Citrus Scab

在柑桔疮痂病发病初期施用试验农药绿菌铜和对照农药可杀得。结果显示,绿菌铜600倍、800倍、1000倍、可杀得800倍对柑桔叶片疮痂病施药后15天的防效分别为78.75%、73.65%、61.69%、73.29%,绿菌铜600倍的防效显著高于其它处理;绿菌铜800倍与可杀得800倍的防效无显著性差异,但两者显著高于绿菌铜1000倍;对柑桔果实疮痂病施药后防效分别为76.17%、72.18%、64.29%、70.47%,绿菌铜600倍极显著高于其它处理,绿菌铜800倍与可杀得800倍的防效无显著性差异,但两者极显著高于绿菌铜1000倍。

During the primary occurrence of citrus scab, the tested chemical fungicide cheshunt-carbendazim and check chemical fungicide kocide were sprayed on citrus trees. The result showed that the control efficacies of 600-fold, 800-fold and 1000-fold dilution of cheshunt-carbendazim, 800-fold dilution of kocide on leaf scab of citrus were 78.75%、73.65%、61.69%、73.29% after 15 days of application, respectively, the control efficacy of 600-fold dilution of cheshunt-carbendazim being higher than that of other treatments, 800-fold dilution of cheshunt-carbendazim being similar to kocide, but significantly higher than 1000-fold dilution of cheshunt-carbendazim in control efficacy (p=0.05). Their control efficacies on fruit scab of citrus were 76.17%、72.18%、64.29%、70.47% respectively. 600-fold dilution of cheshunt-carbendazim was higher than that of other treatments in the control efficacy; 800-fold dilution of cheshunt-carbendazim was similar to kocide, but extremely significantly higher than 1000-fold dilution of cheshunt-carbendazim in control efficacy (p=0.01).