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在铅笔柏、河南桧等多种柏树上流行一种芽枯病,近年来已越来越普遍,越来越严重,成为当前生产上急待解决的重要问题。引起芽枯病的原因是真菌性病害,还是生理性病害,或其他病原,尚未有定论。笔者于1984年立题进行铅笔柏芽枯病研究。现已确定系瘿螨为害所致。经南京农业大学匡海源副教授鉴定为纳瘿螨科(Nalepellidae),三毛瘿螨属(Trisetacus),桧三毛瘿螨(Trisetacus juniperinus Nalepa)。国内尚未见报道。现将该病的分布与寄主、为害情况、症状、病原物特征、发生规律及防治方法的初步研究结果报道如下。
In the Penaeus cypress, Henan cypress and other cypress popular on a blight, in recent years has become more and more common, more and more serious, become the current production of urgent problems to be solved. The cause of bacterial blight is fungal diseases, or physiological diseases, or other pathogens, has not yet been conclusive. Author in 1984 the subject of pencil Baiji study. It has been established Department scabies caused by mites. Associate Professor Kuang Haiyuan from Nanjing Agricultural University identified as Nalepellidae, Trisetacus, Trisetacus juniperinus Nalepa. Not yet reported in China. Now the distribution of the disease and the host, the damage, symptoms, pathogenic features, the occurrence of the law and prevention and treatment of the preliminary results reported below.