Persistence of nanoemulsions of bioactive volatiles and their impact on aphid feeding behaviour

IF 4.3 1区 农林科学 Q1 ENTOMOLOGY Journal of Pest Science Pub Date : 2024-02-13 DOI:10.1007/s10340-024-01746-5
Félix Martín, Elisa Garzo, Pedro Guirao, María Jesús Pascual-Villalobos, Alberto Fereres, Aranzazu Moreno
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Abstract

Myzus persicae and Aphis gossypii (Hemiptera: Aphididae) are two of the most significant aphid species acting as vectors for plant viruses in vegetable crops worldwide. This work provides new knowledge relating the persistence (including population growth and survival) and impact on aphid probing and feeding behaviour of plant essential oil-derived products. Modifications in M. persicae behaviour (EPG results) were noted in plants treated with 0.2% nanoemulsions of distilled lemon oil: (1) the non-probing activity lasted longer, (2) both non-phloematic probing and phloem ingestion activities of aphids were shorter, and (3) xylem ingestion activity and the time taken to achieve sustained phloem ingestion appear to be longer. Finally, a slight increase was also observed in the mean duration of the non-probing activity of M. persicae on plants treated with 0.2% nanoemulsions of farnesol. When pepper plants were sprayed with a 0.2% nanoemulsion of farnesol with Tween 80® (1:2), the population growth of M. persicae colonies on treated plants was slower (40 aphids/plant) than on controls (60 aphids/plant) up to the day seven. The slope of the aphid population growth line corresponding to the formulated mixture of bioactive volatiles was lower (2.26 b) and statistically significant in comparison with the control (7.09 a), probably due to a controlled-release effect up to day 14. No systemic effects were obtained for the bioactive volatiles tested.

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生物活性挥发物纳米乳液的持久性及其对蚜虫取食行为的影响
蚜蝇(Myzus persicae)和棉蚜(Aphis gossypii)(半翅目:蚜科)是全球蔬菜作物中作为植物病毒载体的两种最重要的蚜虫。这项工作提供了与植物精油衍生产品的持久性(包括种群增长和存活)以及对蚜虫探查和取食行为的影响有关的新知识。在使用 0.2% 的蒸馏柠檬油纳米乳剂处理的植物中,发现了蚜虫行为的变化(EPG 结果):(1) 非探查活动持续时间更长;(2) 蚜虫的非根茎探查和根茎摄食活动更短;(3) 木质部摄食活动和实现持续根茎摄食所需的时间似乎更长。最后,在用 0.2% 法呢醇纳米乳剂处理过的植物上,还观察到蚜茧蜂不吸食活动的平均持续时间略有增加。当辣椒植株喷洒 0.2% 的法尼醇纳米乳液和吐温 80® (1:2)时,处理过的植株上的柿蚜虫群增长速度(40 头/株)比对照组(60 头/株)慢,直到第 7 天。与对照组(7.09 a)相比,生物活性挥发物配制混合物对应的蚜虫数量增长线斜率较低(2.26 b),且在统计学上有显著意义,这可能是由于在第 14 天之前都有控释效果。测试的生物活性挥发物没有产生系统性影响。
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来源期刊
Journal of Pest Science
Journal of Pest Science 生物-昆虫学
CiteScore
10.40
自引率
8.30%
发文量
114
审稿时长
6-12 weeks
期刊介绍: Journal of Pest Science publishes high-quality papers on all aspects of pest science in agriculture, horticulture (including viticulture), forestry, urban pests, and stored products research, including health and safety issues. Journal of Pest Science reports on advances in control of pests and animal vectors of diseases, the biology, ethology and ecology of pests and their antagonists, and the use of other beneficial organisms in pest control. The journal covers all noxious or damaging groups of animals, including arthropods, nematodes, molluscs, and vertebrates. Journal of Pest Science devotes special attention to emerging and innovative pest control strategies, including the side effects of such approaches on non-target organisms, for example natural enemies and pollinators, and the implementation of these strategies in integrated pest management. Journal of Pest Science also publishes papers on the management of agro- and forest ecosystems where this is relevant to pest control. Papers on important methodological developments relevant for pest control will be considered as well.
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