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Vector Management Strategies Against Bemisia tabaci (Gennadius) Transmitting Potato Apical Leaf Curl Virus in Seed Potatoes
Potato Research ( IF 2.9 ) Pub Date : 2020-09-01 , DOI: 10.1007/s11540-020-09470-0
Malik Kamlesh , K.V. Raghavendra , Manoj Kumar

Potato (Solanum tuberosum L.) being a vegetatively propagated crop is infected by a large number of viral diseases, most of which are transferred over generations through planting material (tubers), duly responsible for degeneration of seed stocks over the years. In the recent past, the most important geminivirus infecting potato has been Tomato Leaf Curl New Delhi Virus-Potato (ToLCNDV-Potato) or Potato Apical Leaf Curl Virus (PALCV), transmitted through whitefly, Bemisia tabaci (Gennadius). To obtain disease-free seed potatoes, management of the insect vectors remains the major method of control of virus infection and is intensely reliant on the spraying of chemical insecticides. Hence, an attempt was made to identify a suitable integrated pest management (IPM) strategy for effective management of B. tabaci (vector of Potato Apical Leaf Curl Virus) in seed potato crops. Among different treatments evaluated, seed treatment with imidacloprid 600 FS (5 g/10 L) (10 min dip) + first spray of thiamethoxam 25% WG (3 g/10 L) + second spray 2 weeks later of horticultural mineral oil at 50 mL/10 L, recorded maximum per cent reduction in population of B. tabaci (74.5%) over untreated check, with maximum per cent reduction in viral infection (93.0%) over untreated check, and also recorded the maximum seed potato yield (33.95 t/ha) and maximum cost:benefit ratio (1:2.3).



中文翻译:

烟粉虱传播马铃薯根尖卷叶病毒的媒介管理策略

马铃薯(无茄马铃薯)是无性繁殖的作物,受到多种病毒疾病的感染,其中大部分病毒是通过种植材料(块茎)世代相传的,这些材料多年来一直在造成种子种群的退化。在最近的过去,感染马铃薯的最重要的双生病毒是番茄叶卷曲新德里病毒马铃薯(ToLCNDV-马铃薯)或马铃薯顶叶卷曲病毒(PALCV),其通过粉虱,粉虱(Bemisia tabaci)传播(根纳迪乌斯)。为了获得无病的种薯,对昆虫媒介物的管理仍然是控制病毒感染的主要方法,并且强烈依赖于化学杀虫剂的喷洒。因此,试图确定一种合适的病虫害综合治理(IPM)策略,以有效管理种子马铃薯作物中的烟粉虱(马铃薯根尖卷叶病毒的载体)。在评估的不同处理方法中,用吡虫啉600 FS(5 g / 10 L)(浸入10分钟)+第一次喷洒25%WG的噻虫草(3 g / 10 L)+第二次喷雾2周后以50的园艺矿物油进行种子处理毫升/ 10升,记录了烟粉虱种群减少的最大百分比 (74.5%)高于未经处理的检查,病毒感染减少幅度最大(93.0%),高于未经处理的检查,并且还记录了最大马铃薯种薯产量(33.95 t / ha)和最大成本:效益比(1:2.3)。

更新日期:2020-09-01
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