中文摘要：杀虫剂在水稻上的广泛使用导致灰飞虱(SBPH) 死灰复燃。除了通过取食韧皮部细胞制造损害外，灰飞虱还可以作为水稻条纹病毒（RSV，可导致严重的产量损失）的传播介体。通常关于杀虫剂对灰飞虱种群的刺激性研究主要集中在昆虫方面，而有关杀虫剂对灰飞虱传播水稻条纹病毒的影响方面可用信息则很少。本研究调查了两种农药（井冈霉素和三唑磷）对灰飞虱的繁殖力以及灰飞虱传播水稻条纹病毒能力的影响。研究结果表明，井冈霉素200mg/L浓度和三唑磷LC20浓度处理后，不带毒和带毒灰飞虱的繁殖力均明显提高。同时，用杀虫剂处理过的带毒灰飞虱雌虫产卵量大于不带毒灰飞虱雌虫。井冈霉素处理增强了水稻条纹病毒的水平传播；三唑磷则显著提高了灰飞虱的垂直传播速率。本研究为理解灰飞虱死灰复燃以及随后水稻条纹病毒爆发现象下潜在的机制提供了有用的信息。
外文摘要：The widespread use of pesticides in rice has caused the resurgence of the small brown planthopper (SBPH), Laodelphax striatellus. In addition to inciting damage by feeding on phloem cells, SBPH also functions as a vector for rice stripe virus (RSV), which can cause serious yield losses. In general, studies focused on pesticide-induced stimulation of SBPH populations have focused on the insects; little information is available on the impact of pesticides on RSV transmission by SBPH. The present study investigated the effects of two pesticides (validamycin and triazophos) on the fecundity and RSV transmission ability of SBPH. Our results demonstrated that the fecundity of non-viruliferous (naive) or viruliferous SBPH was enhanced by exposure to triazophos at the LC20 and validamycin at 200 mg L-1. Meanwhile, the increased number of eggs produced by viruliferous females treated with pesticides was larger than those from naive females. Exposure to validamycin caused an increase in horizontal transmission of RSV; furthermore, vertical viral transmission rates of SBPH were significantly increased by exposure to triazophos. The present study provides valuable information for understanding the mechanisms underlying the resurgence of SBPH and subsequent outbreaks of RSV.
外文关键词：Small brown planthopper (SBPH); Rice stripe virus (RSV); Pesticides; Fecundity
作者：Yang, Guo-Qing; Gao, Xin; Zhang, Nan-Nan; 等
作者单位：扬州大学
期刊名称：JOURNAL OF ASIA-PACIFIC ENTOMOLOGY
期刊影响因子：1.046
出版年份：2017
出版刊次：9
点击下载：杀虫剂对灰飞虱的繁殖力及灰飞虱传播水稻条纹病毒能力的影响研究