论文部分内容阅读
河南内黄县是红枣集中产区,全县450万株枣树年产四千万公斤,面积、产量均居全国之首。近几年枣疯病蔓延速度惊人,发病株当年丧失结果能力,2—3年枯死,传染性很强(中国拟菱纹叶蝉和凹缘菱纹叶蝉为主要媒介昆虫),形成毁灭性灾害,仅在1987年就挖掉病树1 3.5万株。枣疯病的病原是类菌质体(MLO),对四环素敏感,但采用叶面喷洒、浸根吸收、涂抹药膏和钻孔注射等均未成功。经内黄县林业局冯景慧工程师、内黄县林科所薜合朝试验,踏将板式喷雾器成功地改制为高压注射器后,实行土霉
Neihuang County, Henan Province, is the focus of the jujube-producing areas, the county 4.5 million jujubes with an annual output of 40 million kilograms, area, output ranked first in the country. In recent years, the rate of spread of jujube mad is staggering. The diseased plants lose the ability to produce the results in that year. They die 2-3 years and are highly contagious (the main vector insects, Chinese leaf miner and Chinese moth leafhopper), destructive In 1987, a total of 135,000 diseased trees were excavated. The pathogen of jujube bark is mycoplasma (MLO), which is sensitive to tetracycline. However, foliar spray, root dipping, ointment application and drilling injection were unsuccessful. After the Inner Huang Feng Forestry Bureau of Forestry Engineers, Neihuang County, Lin Ke Chau together test, tread plate spray successfully transformed into high-pressure syringe, the implementation of mold