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葫芦岛市连山区的老官堡,杨郊、寺儿堡、白马石等乡镇,是葫芦岛市重点苹果产区,其产值在农业种植业中占40%以上。苹果轮纹病是该地区苹果生产上的最主要病害之一。以往生产上为了减少经济损失,从3月下旬至9月中旬轮纹病发生时就不断喷药,一直防治到采收前的20 d左右,在病害大发生期往往五六天就喷1次药,喷药时选用二三种杀菌剂混用,既浪费农药又容易出现药害。为寻求有效的防病药剂,2003—2004年选用7.2%甲硫.酮(由3.2%甲基硫菌灵和4%三唑酮合成的含有高效助剂、成膜剂、生物活性剂的一种高效、低毒、低残留、无公害新型果树杀菌剂)防治苹果轮纹病药效试验,并于2005年进行了生产防治试验示范,收到很好的防治效果。
Huludao City Lianshan District, the old government Fort, Yang Jiao, Temple children, Baima Shi and other towns, is the focus of Huludao City, an apple-growing area, its output value in the farming industry accounted for more than 40%. Apple rot disease is one of the most important diseases in apple production in the region. Past production in order to reduce economic losses, from late March to mid-September, the incidence of squamous continuous spraying, has been to control about 20 d before harvest, the disease occurs often five or six days on the spray 1 Medicine, spraying two or three kinds of fungicides used in combination, both waste pesticides and prone to injury. In order to find an effective anti-disease agent, 7.2% methionone (selected from the group consisting of 3.2% thiophanate-methyl and 4% triadimefon) Efficient, low toxicity, low residue, pollution-free new fruit fungicide) apple ring disease prevention and control of pesticide trials, and in 2005 conducted a demonstration of prevention and control of production, received good control effect.