Redescription the morphology and taxonomy of the aphid Dysaphis foeniculus theobald on umbelliferous plants [electronic resource].

Includes references.

Habib and EI-Kady (1961) described Dysaphis (Chomaphis) foeniculus Theobald. The present author redescribed this species from specimens collected from common fennel, carrot and dill plants from North Sinai during 2003 among the species of living aphids on common fennel it is possible to recognize D. foeniculus for its colour and some morphological differential characteristics. This aphid is considered as the main aphid infesting Umbelliferous plants wherever are grown. It attacks the newly tender terminal growth. The secretion of honey dew serves as a medium for sooty mould fungus grows on the infested stalks.

Summary in Arabic.

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