Lethal and sublethal effects of carlina oxide on the aphid Metopolophium dirhodum and its non-target impact on two biological control agents

IF 4.3 1区 农林科学 Q1 ENTOMOLOGY Journal of Pest Science Pub Date : 2024-03-26 DOI:10.1007/s10340-024-01768-z
Matěj Novák, Roman Pavela, Eleonora Spinozzi, Marta Ferrati, Riccardo Petrelli, Filippo Maggi, Renato Ricciardi, Giovanni Benelli
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Abstract

This study was designed to investigate the acute toxicity (mortality) and sublethal effects (fertility and potential natality) of carlina oxide, the main constituent of Carlina acaulis essential oil (EO), against adults of Metopolophium dirhodum (Walker) (Hemiptera: Aphididae). Moreover, its toxicity was evaluated against two aphid natural enemies, i.e., Aphidoletes aphidimyza Rondani (Diptera: Cecidomyiidae) and Chrysoperla carnea Stephens (Neuroptera: Chrysopidae). The highest tested concentration (3.0 mL L−1) resulted in 96.7% mortality of adults of the target pest, highlighting that this concentration of carlina oxide had a similar effectiveness as the positive control we used. Furthermore, probit analysis allowed the estimation of a LC50 of 1.06 mL L−1 and a LC90 of 2.58 mL L−1 for the target pest, which resulted in a much higher mortality rate than that found on natural enemies, i.e., A. aphidimyza (6.7 ± 4.7% ± SD when exposed to the aphid LC90) and C. carnea (7.0 ± 5.5% ± SD when exposed to the aphid LC90), showing the limited non-target impact of carlina oxide. The use of LC30 and LC50 of this compound allowed the fertility inhibition of the target pest by 35.68 ± 6.21% and 23.66 ± 10.58%, respectively, and potential natality inhibition of the target pest by 52.78 ± 4.48% and 59.69 ± 5.60%, respectively. Of note, carlina oxide showed excellent insecticidal activity against M. dirhodum, comparable to the commercial insecticide considered. Overall, the low toxicity of carlina oxide toward A. aphidimyza and C. carnea makes it a safe compound for non-target organisms as well as suitable for developing a green insecticide for the management of M. dirhodum and perhaps other insects of agricultural or medical and veterinary interest.

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氧化卡林纳对蚜虫 Metopolophium dirhodum 的致死和亚致死效应及其对两种生物控制剂的非目标影响
本研究旨在调查 Carlina acaulis 精油(EO)的主要成分氧化卡利纳(carlina oxide)对 Metopolophium dirhodum (Walker) (半翅目:蚜科)成虫的急性毒性(死亡率)和亚致死效应(繁殖力和潜在产仔率)。此外,还评估了其对两种蚜虫天敌的毒性,即 Aphidoletes aphidimyza Rondani(双翅目:Cecidomyiidae)和 Chrysoperla carnea Stephens(神经目:Chrysopidae)。测试的最高浓度(3.0 mL L-1)导致目标害虫成虫的死亡率达到 96.7%,这表明该浓度的氧化卡林纳与我们使用的阳性对照具有相似的效果。此外,通过 probit 分析,可以估算出目标害虫的半数致死浓度为 1.06 mL L-1,半数致死浓度为 2.58 mL L-1,其死亡率远高于天敌,即蚜虫(接触蚜虫半数致死浓度 LC90 时为 6.7 ± 4.7% ± SD)和 C. carnea(接触蚜虫半数致死浓度 LC90 时为 7.0 ± 5.5% ± SD),这表明氧化卡林纳的非目标影响有限。使用该化合物的 LC30 和 LC50 对目标害虫的繁殖力抑制率分别为 35.68 ± 6.21% 和 23.66 ± 10.58%,对目标害虫的潜在成虫抑制率分别为 52.78 ± 4.48% 和 59.69 ± 5.60%。值得注意的是,氧化卡林纳对 M. dirhodum 表现出极佳的杀虫活性,可与考虑使用的商业杀虫剂相媲美。总体而言,氧化卡利纳对蚜虫和胭脂虫的低毒性使其成为一种对非目标生物安全的化合物,并适合开发一种绿色杀虫剂,用于防治M. dirhodum以及其他农业或医学和兽医学领域的昆虫。
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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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