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黄粉虫(Cinacium iakusuiense kishi.)又名梨实瘤虫,属瘤蚜科的害虫,常常虫卵成堆混在一起,犹如黄粉,故而得名。据现有资料分布于我国山东、河北、安徽等省,四川前无报导。1969年在我省金川园艺场仅发现一株果实受害,70年在该园达一百多株树的果实受害,73年蔓延到全县,加上其他病虫为害,受害果达90％以上。另据汉源县反映,近年来也有发生。一、为害状:黄粉虫群集于萼窪、梗窪及两果相接处进行为害。梨果被害后,果实细胞坏死,产生黑疤,在高温多湿条件下,一些腐生菌寄生而腐烂变质,不堪食用。
Tenebrio molitor (Cinacium iakusuiense kishi.), Also known as pear solid tumor insects, is a pest of Aphididae, often mixed with eggs piles, like yellow powder, so named. According to the available information distributed in our country Shandong, Hebei, Anhui and other provinces, Sichuan had no report. In 1969 Jinchuan horticultural field in our province found only one fruit damage, 70 years in the park up to more than 100 tree fruit damage, spread to the county in 73 years, together with other pest damage, the damage reached more than 90% . According to Hanyuan County, reflected in recent years have also occurred. First, the harm-like: Tenebrio polygamy in calyx depression, stem depression and two fruits at the junction damage. Pear fruit damage, the fruit cells necrosis, resulting in black scars, hot and humid conditions, some of the saprophytic parasitic spoilage, unbearable consumption.