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我们在烟草丛枝症病害 (Tobaccowitches’broomsymptomdiseases )的媒介昆虫研究中首次发现白背飞虱(SogatellafurciferaHorvath)成虫 (长翅型 )能传播该病 ,并对其传毒特性进行研究发现 :3头带毒白背飞虱成虫便可传毒 ,每烟株上超过 15头带毒白背飞虱传毒率达最大 ,最短获毒时间为 5min ,当获毒时间为 2 4h传毒率达最大 ,当接种时间达 48h传毒率达最大。由于云南省多数烟区烟田与稻田混杂 ,在烟田中存在相当数量的白背飞虱。因此 ,白背飞虱是烟草丛枝症病害的重要传毒介体之一。
For the first time, we found that adult Sogatella furcifera Horvath (long-winged form) can transmit the disease in vector insect studies of tobacco bush disease (broomsymptomdiseases) and its toxicity profile was studied: 3 heads The poisoning rate of poisoned whitebacked planthoppers was higher than that of the whitebacked planthopper, and the maximum rate of poisoning was 15min for each plant. The shortest time for obtaining poisonous was 5min. When the poisoning time was 24h, When the inoculation time up to 48h the highest rate of transmission. Because most tobacco-growing areas in Yunnan Province are mixed with rice fields, there is a considerable amount of WBPH in tobacco fields. Therefore, the whitebacked planthopper is one of the important mediators of tobacco bush disease.