论文部分内容阅读
梨锈病是杭州近郊果园梨树的一种主要病害,尤其是毗邻西湖风景区的几个果园发病更为严重。长期以来,各果园在防治梨锈病上主要采用波尔多液,效果不甚理想,而且梨锈病的发生往往与梨二叉蚜的发生,处在同一时间内,而波尔多液又不能与防治梨二叉蚜的乐果等药剂混用,这在防治上带来了一定困难,往往出现顾此失彼现象。据报导,近年来萎锈灵在防治小麦锈病上收到了良好效果。为了探明萎锈灵药剂以
Pear rust is a major disease of pear tree in the suburbs of Hangzhou, especially in some orchards adjacent to the West Lake Scenic Area. For a long time, the orchards in the prevention and control of pear rust mainly Bordeaux mixture, the effect is not very satisfactory, and the occurrence of pear rust is often associated with the occurrence of pear aphid, at the same time, and Bordeaux mixture can not control pear bifurcation Aphids and other drugs dimethoate mix, which brought some difficulties in prevention and treatment, often appear to care about this phenomenon. It has been reported that in recent years, rust rust Ling received good results in the control of wheat rust. In order to ascertain the rust rust agent