Lethal and sublethal effects of carlina oxide on Tetranychus urticae (Acari: Tetranychidae) and Neoseiulus californicus (Acari: Phytoseiidae).

Autor: Rizzo R; CREA - Research Centre for Plant Protection and Certification, Palermo, Italy., Ragusa E; Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy., Benelli G; Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy., Lo Verde G; Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy., Zeni V; Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy., Maggi F; Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Camerino, Italy., Petrelli R; Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Camerino, Italy., Spinozzi E; Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Camerino, Italy., Ferrati M; Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Camerino, Italy., Sinacori M; Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy., Tsolakis H; Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy.
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2024 Mar; Vol. 80 (3), pp. 967-977. Date of Electronic Publication: 2023 Nov 01.
DOI: 10.1002/ps.7827
Abstrakt: Background: Tetranychus urticae Koch, is a polyphagous and damaging pest, presenting several resistant populations worldwide. Among new and more environmentally friendly control tools, botanical pesticides represent a valuable alternative to synthetic ones within integrated pest management strategies. Accordingly, we investigated the lethal and sublethal effects of carlina oxide isolated from Carlina acaulis (Asteraceae) roots on T. urticae and its natural enemy, the predatory mite, Neoseiulus californicus (McGregor).
Results: Carlina oxide (98.7% pure compound) was used for acaricidal tests on eggs, nymphs, and adult females of T. urticae (concentrations of 312.5, 625, 1250, 2500 and 5000 μL L -1 ), and eggs and females of N. californicus (1250 and 5000 μL L -1 on eggs and females, respectively). Behavioral two-choice tests were also conducted on phytoseiid females. Carlina oxide toxicity was higher on T. urticae females than nymphs (median lethal dose 1145 and 1825 μL L -1 , respectively), whereas egg mortality and mean hatching time were significantly affected by all tested concentrations. A decreasing daily oviposition rate for T. urticae was recorded with concentrations ranging from 625 to 5000 μL L -1 , whereas negative effects on the population growth rate were recorded only with the three higher concentrations (1250, 2500 and 5000 μL L -1 ). No toxic effect on N. californicus females was found, but a strong repellent activity lasting for 48 h from application was recorded.
Conclusion: Carlina oxide reduced longevity and fecundity of T. urticae adults, but not of N. californicus. This selective property allows us to propose it as a novel active ingredient of ecofriendly acaricides for T. urticae management. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
(© 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.)
Databáze: MEDLINE
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