Successful controlling of Lobesia botrana (Lepidoptera: Tortricidae), using meso-dispensers for mating disruption in urban areas

IF 1.7 4区 农林科学 Q2 Agricultural and Biological Sciences
R. Ceballos, A. Contreras, T. Fujii, S. Nojima, E. Fuentes‐Contreras, Diego Arraztio, Álvaro Garrido, T. Curkovic
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引用次数: 0

Abstract

The European grapevine moth (EGVM), Lobesia botrana (Denis & Schiffermüller), is a severe pest of grapes, since detected in Chile in 2008 has been subjected to an official control program by the Chilean Department of Agriculture, mainly in vineyards and orchards. Lobesia botrana has also been found in urban areas, mostly on backyard grapes, those have become important refuges for large L. botrana populations and significant sources for both dispersal and re-infestation to agricultural settings, thus the need for control. Chemical sprays are not allowed for intensive pest management in residential areas; therefore, the mating disruption technique has been the main tool to control L. botrana in cities. However, it is not always feasible to evenly deploy the required amount of dispenser ha -1 in urban areas using conventional formulations. A new meso-dispenser (MeD), loaded with 10x the regular amount of pheromone of standard dispensers, and recommended at 50 units ha -1 , was evaluated in three consecutive seasons (2013-2016), in four cities in central Chile. This new dispenser yielded significantly lower male captures in traps in comparison with untreated areas. Cumulative male captures per individual flights per season, ranged between 292-2043 trap -1 (MeD) and 15 795-28 403 trap -1 (untreated), and significantly declined in the second and third seasons of MeD usage. Disruption index ranged between 68.9% and 98.9% considering flights individually, and above 88.0% considering whole seasons. The presence of eggs, larvae, and pupae infesting clusters, also significantly declined with the number of seasons treated with MeD.
用中施点药干扰市区植物叶螟(鳞翅目:斑蝽科)交配成功
欧洲葡萄蛾Lobesia botrana(Denis&Schiffermüller)是一种严重的葡萄害虫,自2008年在智利被发现以来,一直受到智利农业部的官方控制,主要发生在葡萄园和果园。在城市地区也发现了波氏Lobesia botrana,主要分布在后院的葡萄上,这些葡萄已成为大型波氏Lobsia种群的重要避难所,也是传播和再次侵扰农业环境的重要来源,因此需要进行控制。居民区不允许使用化学喷雾进行病虫害强化管理;因此,交配破坏技术已成为城市防治番茄的主要手段。然而,使用传统配方在城市地区均匀部署所需数量的分配器ha-1并不总是可行的。在智利中部的四个城市,连续三个季节(2013-2016年)对一种新的meso分配器(MeD)进行了评估,该分配器装载的信息素量是标准分配器常规量的10倍,推荐为50单位ha-1。与未经处理的区域相比,这种新的分配器在陷阱中捕获的雄性显著较低。每个季节每次飞行的累积雄性捕获量在292-2043陷阱-1(MeD)和15795-28403陷阱-1(未经治疗)之间,在使用MeD的第二和第三季节显著下降。考虑到个别航班,干扰指数在68.9%至98.9%之间,考虑到整个季节,干扰指数超过88.0%。卵、幼虫和蛹侵扰集群的数量也随着MeD处理的季节数量而显著下降。
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来源期刊
CiteScore
3.00
自引率
11.80%
发文量
60
审稿时长
6 months
期刊介绍: ChileanJAR publishes original Research Articles, Scientific Notes and Reviews of agriculture, multidisciplinary and agronomy: plant production, plant protection, genetic resources and biotechnology, water management, soil sciences, environment, agricultural economics, and animal production (focused in ruminant feeding). The editorial process is a double-blind peer reviewing, Editorial Office checks format, composition, and completeness, which is a requirement to continue the editorial process. Editorial Committee and Reviewers evaluate relevance and scientific merit of manuscript.
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