Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (1995) 119, 455-463

C. Rougon, A. Roques, D. Rougon and J. Levieux (1995)
Impact des insectes sur les potentialités de régénération des Chênes (Quercus spp.) en France. I. Mise en évidence d'une action méconnue des curculionides phyllophages sur les organes reproducteurs avant la fécondation
[Impact of insects on the regeneration potential of oaks in France. I. Action of phyllophagus Curculionidae (Coleoptera) on female flowers prior to fecundation]
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 119 (4), 455-463
Abstract: Insect damage to female flowers of Quercus petraea (Matt.) Liebl. and Q. robur L. was surveyed in situ from 1989 to 1993 on isolated oaks as well as on forest trees in the central part of France. Depending on the year, 200 to 1000 flowers located 2-12 m high were selected and continuous observations of damage development were made from bud-burst to fecundation. Thirteen weevil species (Coleoptera: Curculionidae), previously known only as defoliators, were noticed to attack buds, flowers or peduncles prior to flower fecundation. The most significant damage was caused by Polydrusus cervinus L., Strophosoma capitatum De Geer, Brachyderes incanus L., Phyllobius piri (L.) and Coeliodes ilicis (Bed.). Details of the biology of these species and the damage caused are given.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: French)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Brachyderes incanus	Oak (Quercus)	France
	Phyllobius pyri	Oak (Quercus)	France
	Polydrusus cervinus	Oak (Quercus)	France
	Strophosoma capitatum	Oak (Quercus)	France
	Coeliodes ilicis	Oak (Quercus)	France