不同杀菌剂对马铃薯疮痂病的防效试验

Control Efficacy of Various Fungicides on Potato Common Scab

马铃薯疮痂病(Streptomyces spp.)是目前内蒙古马铃薯生产的重要病害之一,更是影响微型薯生产的主要病害。缺少有效杀菌剂是病害严重的主要原因,2012年选用10种杀菌剂进行了网棚蛭石消毒防治该病害试验。结果表明:疮痂治200倍液防效86.8%,99%硫酸铜40倍液防效55.1%、50%克菌丹可湿性粉剂500倍液防效50.9%、77%冠菌铜可湿性粉剂500倍液防效42.9%、80%代森锰锌可湿性粉剂500倍液防效41.2%。疮痂治对防治马铃薯疮痂病具有优越效果。

At present, the potato common scab （Streptomyces spp.） is one of the important diseases in potato production in Inner Mongolia. It is also one of the most serious problems in minituber production. No effective fungicide available is the main factor for the severity of potato common scab. In this research, vermiculite was treated with ten fungicides in plot experiments in 2012 to control potato common scab in net covered shed. The results indicated the control efficacy of Chuangjiazhi 200 times dilution, 99% Copper Sulfate 40 times dilution, 50% Captan WP 500 times dilution, 77% Copper Hydroxide WP 500 times dilution and 80% Mancozeb WP 500 times dilution was, respectively, 86.8%, 55.1%, 50.9%, 42.9% and 41.2%. The Chaungjiazhi 200 times dilution had excellent effects for control of potato common scab.