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为了把栽的树木培育和保护好,巩固绿化成果,现在根据喀喇沁旗旺业甸林场防治病虫害办法介绍如下: 一、黑松育苗根腐病防治方法这种病发生在4月或5月到7月,小苗茎高2——3公分左右,幼苗根部似水浸状,待以后根干干燥时,易与木质脱离,有的病株不用手拔,根部即坐地脱离,地际径处有白色小霉点。在发病的当时利用15%黑矾溶液灌注根部,每周3——4次,苗色既能转好,根腐也能停止蔓延。对出齐脱帽之小苗,喷洒一次四斗多量式波尔多液进行预防。如已发病,亦可喷洒四斗等量式或三斗等量式波尔多液主治,并将病株拔出用火烧掉。
In order to cultivate and protect the planted trees and consolidate the achievements of greening, we now introduce the following pest control measures according to the prevention and control measures for the diseases and insect pests of the Wadinian Forest Farm in the Kalaqin Banner: I. Prevention and Control of Root Rot of Black Pine Seedlings The disease occurs in April or May To July, the seedling stem height of about 2 to 3 cm, seedling roots like flooded, until after the dry root, easy and wood detachment, and some diseased plants do not have to hand pull, the root that is sitting off from the ground diameter There are white moldy point. At the time of onset, the root was perfused with a solution of 15% black alum, 3 to 4 times a week, and the seedling color turned better and root rot could stop spreading. Hatched off the Qi of seedlings, spray a four-bucket multi-volume Bordeaux solution for prevention. Such as the incidence, can also be sprayed four bucket equal volume or three bucket equal amount of Bordeauxis Indications, and the diseased plants were burned out with fire.