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WHITEFLIES (ALEYRODIDAE) ATTACKING CITRUS IN SOUTHERN TEXAS WITH NOTES ON NATURAL ENEMIES

Published online by Cambridge University Press:  31 May 2012

D. E. Meyerdirk ,
J. B. Kreasky  and
W. G. Hart
D. E. Meyerdirk
Affiliation:
Citrus Insects Research, USDA, SEA, AR, Weslaco, Texas 78596
J. B. Kreasky
Affiliation:
Citrus Insects Research, USDA, SEA, AR, Weslaco, Texas 78596
W. G. Hart
Affiliation:
Citrus Insects Research, USDA, SEA, AR, Weslaco, Texas 78596
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Abstract

Five species of whiteflies (Aleyrodidae) were found on citrus in southern Texas: Aleurocanthus woglumi Ashby, Aleurothrixus floccosus (Maskell), Paraleyrodes citri Bondar, Dialeurodes citri (Ashmead), and D. citrifolii (Morgan). Parasite records for this area were Amitus hesperidum Silvestri (Platygastridae) and Prospaltella opulenta Silvestri (both Encyrtidae) attacking A. woglumi; Eretmocerus sp. near paulistus Hem. (Encyrtidae), Amitus sp., and Prospaltella sp. attacking A. floccosus; and Prospaltella sp. attacking P. citri. Predators recorded were Delphastus pusillus (Le Conte) (Coccinellidae) feeding on A. floccosus; D. pusillus and Nephaspis amnicola Wingo (Coccinellidae) feeding on P. citri. A pathogenic fungus, Aschersonia aleyrodis Webber, was found attacking D. citri.

Résumé

Cinq espèces d’aleurodes ont été relevées sur le citronnier au sud du Texas : Aleurocanthus woglumi Ashby, Aleurothrixus floccosus (Maskell), Paraleyrodes citri Bondar, Dialeurodes citri (Ashmead), et D. citrifolii (Morgan). Les parasites inventoriés furent Amitus hesperidum Silvestri (Platygasleridae) et Prospaltella opulenta Silvestri (Encyrtidae, les 2 espèces) parasitant A. woglumi; Eretmocerus sp. near paulistus Hem. (Encyrtidae), Amitus sp. et Prospaltella sp. parasitant A. floccosus; et Prospaltella sp. parasitant P. citri. Les prédateurs identifiés furent Delphastus pusillus (Le Conte) (Coccinellidae) attaquant A. floccosus; D. pusillus et Nephaspis amnicola Wingo (Coccinellidae) attaquant P. citri. Un champignon pathogène, Aschersonia aleyrodis Webber, a été identifié sur D. citri.

Type
Articles
Information
The Canadian Entomologist , Volume 112 , Issue 12 , 01 December 1980 , pp. 1253 - 1258
Copyright
Copyright © Entomological Society of Canada 1980

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