Efficacy assessment of different insecticides for control of whitefly against tomato leaf curl disease

IF 1.1 4区 农林科学 Q3 PLANT SCIENCES Journal of Phytopathology Pub Date : 2024-06-17 DOI:10.1111/jph.13340
Someshree Mane, Pravin Khaire, Ashwini Kumar, Tanaji Narute
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Abstract

The impact of eight pesticides on the transmission of Tomato leaf curl virus (ToLCV) by the whitefly, Bemisia tabaci Gennadius to tomato, Lycopersicon esculentum (Miller), was studied in the field using a randomized block design. Differences in performance were anticipated because these eight insecticides comprise distinct mechanism of action including both contact and systemic. Increased insecticide efficacy is necessary, particularly in regions with conducive weather conditions that support a healthy whitefly population, to effectively manage the population. There is a need to vary the insecticides used in order to reduce the emergence of resistance in the whitefly population due to the extensive usage of a single mechanism of action for whitefly control. The foliar spray of insecticides was done when first incidence of whitefly was noticed in the field with 15 days of interval. The studies on effect of different insecticides in the management of ToLCV disease through the controlling whitefly population, we evaluated that Chlorantraniliprole 8.8% + Thiomethaxam 17.5% SC was effective in sustaining the yield by reducing the incidence of disease and whitefly population during both the years followed by Spirotetramat 11.01% + Imidacloprid 11.01% SC, Thiamethoxam 12.6% + Lambda cyhalothrin 9.5% ZC and Cyantraniliprole 10.26% OD, respectively.

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不同杀虫剂防治番茄卷叶粉虱的药效评估
采用随机区组设计,在田间研究了八种杀虫剂对粉虱(Bemisia tabaci Gennadius)传播番茄卷叶病毒(ToLCV)的影响。由于这八种杀虫剂具有不同的作用机理,包括接触性和系统性作用,因此预计它们的性能会有所不同。为了有效管理粉虱种群,必须提高杀虫剂的效力,特别是在气候条件有利、粉虱种群健康的地区。由于广泛使用单一作用机制来控制粉虱,有必要改变杀虫剂的使用,以减少粉虱群体中抗药性的出现。当发现田间首次出现粉虱时,就开始叶面喷洒杀虫剂,间隔时间为 15 天。在研究不同杀虫剂通过控制粉虱数量来防治 ToLCV 病害的效果时,我们评估了 Chlorantraniliprole 8.8% + Thiomethaxam 17.5% SC 在这两年中通过减少病害发生率和粉虱数量有效地保持了产量,其次分别是 Spirotetramat 11.01% + Imidacloprid 11.01% SC、Thiamethoxam 12.6% + Lambda cyhalothrin 9.5% ZC 和 Cyantraniliprole 10.26% OD。
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来源期刊
Journal of Phytopathology
Journal of Phytopathology 生物-植物科学
CiteScore
2.90
自引率
0.00%
发文量
88
审稿时长
4-8 weeks
期刊介绍: Journal of Phytopathology publishes original and review articles on all scientific aspects of applied phytopathology in agricultural and horticultural crops. Preference is given to contributions improving our understanding of the biotic and abiotic determinants of plant diseases, including epidemics and damage potential, as a basis for innovative disease management, modelling and forecasting. This includes practical aspects and the development of methods for disease diagnosis as well as infection bioassays. Studies at the population, organism, physiological, biochemical and molecular genetic level are welcome. The journal scope comprises the pathology and epidemiology of plant diseases caused by microbial pathogens, viruses and nematodes. Accepted papers should advance our conceptual knowledge of plant diseases, rather than presenting descriptive or screening data unrelated to phytopathological mechanisms or functions. Results from unrepeated experimental conditions or data with no or inappropriate statistical processing will not be considered. Authors are encouraged to look at past issues to ensure adherence to the standards of the journal.
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