Phytoparasitica (2017) 45, 165-173

Panagiotis J. Skouras, George J. Stathas, Costas Ch. Voudouris, Anastasios I. Darras, John A. Tsitsipis and John T. Margaritopoulos (2017)
Effect of synthetic insecticides on the larvae of Coccinella septempunctata from Greek populations
Phytoparasitica 45 (2), 165-173
Abstract: Coccinella septempunctata L. is one of the most abundant ladybird species in Greece, preying on several aphid species and other arthropods, of which many are pests of cultivated plants. These pests are usually controlled with chemical insecticides. During this process, however, beneficials are also exposed to pesticides. The development of Integrated Pest Management (IPM) programs against aphids requires the evaluation of the effects of insecticides on beneficial insects. We evaluated the LD₅₀ of imidacloprid, acetamiprid, bifenthrin and deltamethrin on first, second, third and fourth instar larvae of C. septempunctata by topical application. Moreover, we studied their sublethal effects (LD₁₀) on the development, weight and prey consumption of fourth instar larvae. The topical application bioassays showed that deltamethrin and bifenthrin were highly toxic to all larval instars, whereas imidacloprid and acetamiprid were less toxic to fourth instar larvae. The LD₁₀ dose significantly affected, developmental time, adult weight and daily predation. These results show the importance of assessing potential effect of insecticides on C. septempunctata for developing effective IPM programs of aphids in Greece.
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Link to article at publishers website
Database assignments for author(s): Panagiotis J. Skouras, John T. Margaritopoulos, Anastasios I. Darras, John A. Tsitsipis

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Coccinella septempunctata (predator)			Greece