湟源县青杨叶锈病发生调查及药剂试验探讨  

Occurrence Investigation of Melampsora larici-populina in Huangyuan County and Pesticide Trial

作　　者：陈玉红 CHEN Yu-hong(Forestry Workstation in Huangyuan,Huangyuan Qinghai 812100,China)

机构地区：[1]湟源县林业工作站,青海湟源812100

出　　处：《青海农林科技》2022年第3期85-88,100,共5页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：本研究对青海省西宁市湟源县4个乡镇30个村青杨叶锈病的发生进行调查,结果表明,湟源县青杨叶锈病发生普遍,叶片发病率在33.27%-70.00%之间,平均发病率为53.56%。4种药剂喷施青杨叶锈病试验后,43%戊唑醇SC杀菌效果最好,夏孢子干枯叶率84.71%,其次为10%苯醚甲环唑WG 79.46%,0.3%四霉素AS 70.82%,5%多抗霉素AS效果最差,夏孢子干枯叶率49.43%。This study investigated the occurrence of Melampsora larici-populina in 30 villages in 4 towns and towns in Huangyuan County, Xining City, Qinghai Province.The results showed that Melampsora larici-populina was common in Huangyuan County, and the incidence of leaf rust was between 33.27% and 70.00%.The average incidence rate was 53.56%.After the four kinds of pesticides were sprayed on the Melampsora larici-populina,43% tebuconazole SC had the best bactericidal effect, and the rate of dry leaves was 84.71%,followed by 10% difenoconazole WG 79.46%,0.3% tetramycin AS 70.82%,5% polyantimycin AS had the worst effect, and the rate of spores withered leaves was 49.43%.

关 键 词：青杨叶锈病 发病率 药剂试验 

分 类 号：S763.7[农业科学—森林保护学]