枣疯病介体昆虫叶蝉的发生规律调查

Investigation on Occurrence Regularity of Vector Insect Leafhoopers of Jujube Witches’Broom Disease

为调查枣疯病介体昆虫叶蝉的发生规律,采用悬挂黄板的方式,在3个时间段对具有代表性的柏树林地、打药枣园及不打药枣园的昆虫出现种类、叶蝉虫口数量进行观测。结果表明,4月上旬柏树林地昆虫种类有17种,其中,有益昆虫4种,中性昆虫2种;枣疯病介体昆虫叶蝉类3种。防治叶蝉的最佳时间为4月11—15日。

To investigate the occurrence regularity of leafhoopers,a vector insect of jujube witches’broom disease,the adults and nymphs of leafhoppers were investigated by means of hanging yellow board.The species of insects and the number of leafhoppers in representative cypress forest land,jujube garden with and without medicine were observed in three time periods.The results showed that there were 17 species of insects in cypress woodland in early April,including 4 beneficial insects and 2 neutral insects,there were three species of leafhoppers as vectors insect of jujube witches’broom disease.The best time of prevention and treatment was on April 11-15.