Abstract
Anthocoris nemorum (L.) andA. nemoralis (F.) were reared on apterous hop aphids,Phorodon humuli (Schrank), at 20±0.5°C.A. nemorum andA. nemoralis killed an average of 255 and 174 aphids respectively during nymphal development, and the adults killed 37 and 33 per day respectively. Small anthocorid nymphs selectively killed small aphids but adult anthocorids and 5th instar nymphs killed aphids of every size. Mean development times from emergence to final moult were 22 and 16 days forA. nemorum andA. nemoralis respectively.
Résumé
Anthocoris nemorum (L.) etA. nemoralis (F.) ont été élevés sur le stade aptère du puceron du houblon,Phorodon humuli (Schrank), à 20°C±0.5°C.
A. nemorum etA. nemoralis ont consommé durant leur phase larvaire, en moyenne 255 et 174 pucerons respectivement, les adultes par contre ont consommé respectivement 37 et 33 pucerons par jour.
Les jeunes larves consommaient de façon sélective les jeunes pucerons, tandis que les adultes et les larves au 5c stade consommaient des pucerons de toute taille.
Le délai de développement entre l'émergence et la métamorphose finale pourA. nemorum etA. nemoralis fut de 22 et 16 jours respectivement.
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Campbell, C.A.M. Alaboratory evaluation ofAnthocoris nemorum andA. nemoralis [Hem.: Anthocoridae] as predators ofPhorodon humuli [Hom.: Aphididae] . Entomophaga 22, 309–314 (1977). https://doi.org/10.1007/BF02372153
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DOI: https://doi.org/10.1007/BF02372153