Abstract
Group-living spiders may be uniquely suited for controlling flying insect pests, as their high tolerance for conspecifics and low levels of cannibalism result in large, predator dense capture webs. In laboratory settings, we tested the ability of the facultatively communal spider, Cyrtophora citricola, to control the tomato leafminer, Tuta absoluta; a major pest of tomato crops worldwide. We tested whether prey capture success was affected by spider body size, and whether prey capture differed among T. absoluta, flightless fruit flies (Drosophila hydei), and larger black soldier flies (Hermetia illucens). We found that larger spiders generally caught more prey, and that prey capture success was similar for T. absoluta and easily caught fruit flies, while black soldier flies were rarely caught. We further investigated the seasonal variations in web sizes in southern Spain, and found that pest control would be most effective in the tomato planting and growing season. Finally, we show that C. citricola in Spain have >50% infection rates of an egg predatory wasp, Philolema palanichamyi, which may need controlling to maintain pest control efficacy. These results suggest that using C. citricola as a biological control agent in an integrated pest management system could potentially facilitate a reduction of pesticide reliance in the future.
Funder
Royal Society
Zuckerman STEM Postdoctoral
Junta de Andalucía
Ministry of Food and Agriculture, Plant Protection & Regulatory Services Directorate
APHA & DEFRA with IPAFFS
Reference58 articles.
1. Crop pests and pathogens move polewards in a warming world;Bebber;Nat. Clim. Chang.,2013
2. From the Western Palaearctic region to beyond: Tuta absoluta 10 years after invading Europe;Campos;J. Pest Sci.,2017
3. Natural enemies associated with Tuta absoluta and functional biodiversity in vegetable crops;Molina;BioControl,2021
4. Tarusikirwa, V.L., Machekano, H., Mutamiswa, R., Chidawanyika, F., and Nyamukondiwa, C. (2020). Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) on the “offensive” in Africa: Prospects for integrated pest management initiatives. Insects, 11.
5. Tuta absoluta: A global looming challenge in tomato production;Gebremariam;J. Biol. Agric. Healthc.,2015
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