黄淮烟区有翅蚜发生动态与病毒病流行的关系

从2006年4月初至6月底,对平顶山烟区宝丰、叶县、郏县3个县进行了烟蚜有翅蚜发生期的定点调查,以及有翅蚜发生动态与病毒病流行关系的初步研究。结果表明:烟蚜有翅蚜迁飞活动高峰在4月底至5月中旬;在所诱集的有翅蚜中,烟蚜的比例最大;在诱集方式上,黄板的灵敏度明显高于黄皿,效果较好;而烟区病毒病盛发期在5月底至6月初,病毒病的流行与有翅蚜迁飞存在显著的正相关关系;周边不同环境因素、盖膜及移栽方式、移栽期等对有翅蚜发生动态和病毒病的流行也存在着一定的影响。

Epidemiology of Winged Aphid and Its Virus Prevalence in Tobacco Field of Yellow and Huai River Area

The relationship between the occurrence of winged aphid and tobacco virus were insti-gated in three tobacco areas of Baofeng,Yexian and Jiaxian.There was one peak of immigration of winged aphid,which were from the end of April to the middle of May.The percentage of tobacco aphid was the most percentage in the total number of aphids attracted.The attracting effect of yellow board was more sensitive than that of yellow glass plate.The occurring peak of tobacco virus was at the end of May and the beginning of June.The occurrence of tobacco virus had a positive relationship with the immigration of winged aphids.The other crops and village near tobacco fields,the tobacco coverings,transplanting styles and the transplanting period had some effects on the occurring dynamics of winged aphids and the prevalence of tobacco virus.