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1993年黄山市龙溪区农业局多经站从山东省果树所引进了晚熟李品种黑宝石。通过3年的科学栽培管理,1996年即开始挂果。从挂果情况看,黑宝石李表现极佳。然而在1997、1998两年,我地的黑宝石李在即将成熟时却都遭到了吸果夜蛾和金龟子两大害虫的严重危害。我们用过多种药剂防治,仅在药效内无虫危害,一旦药效一过虫害立即出现,因而喷药防治效果很差,最后导致果实的商品价值极低,栗园严重减产减值。为此,从1999年起,我们连续2年对黑宝石李采取了套袋裁培措施,结果取得了意想不到的效果。
Longxi District, Huangshan City Bureau of Agriculture in 1993 by more stations from the fruit trees in Shandong Province introduced the late maturing varieties of plum black gem. After 3 years of scientific cultivation and management, fruit began to be put on in 1996. From the fruiting situation, Ruby Lee performed very well. However, in 1997 and 1998, black gem plugs in my area were severely endangered by the two major pests of fruit-bearing moths and beetles. We used a variety of agents to prevent and control, only insects in the efficacy of harm, once the efficacy of a pest immediately, so that the effect of spraying control is poor, resulting in very low value of the fruits of the commodity, a serious reduction of output Chestnut impairment. For this reason, since 1999, we have taken the bagging and sourcing measures against the gem of plum for two consecutive years and the results have achieved unexpected results.