The Coriander Aphid, Hyadaphis coriandri (Das)

The coriander aphid, Hyadaphis coriandri (Das), was found for the first time in North America on fennel (Foeniculum vulgare Mill.) at Orange County residences in Apopka and Orlando. In December 1998, an infestation also was found on coriander (Coriandrum sativum L.) and dill (Anethum graveolens L.) at a residence in Tampa, Hillsborough County.

There are about thirteen described species of Hyadaphis (Remaudière and Remaudière 1997), most of which are obscure Central Asian or European species (Ivanovskaya 1977; Kadyrbekov 1990; Miyazaki 1971; Raychaudhuri, et al. 1980; Shaposhnikov 1964). There are several species in the genus known to be pests, including the coriander aphid, Hyadaphis foeniculi (Passerini), Hyadaphis passeriniii (del Guercio) and Hyadaphis tataricae (Aizenberg).

Only three Hyadaphis species occur in the Western Hemisphere. Hyadaphis foeniculi, the honeysuckle aphid, has been in North America for a long time. Its winter host is honeysuckle, and summer hosts are various Umbelliferae including some cultivated crops. There are no Division of Plant Industry specimens or records of this species in Florida. Hyadaphis tataricae, the honeysuckle witches’ broom aphid, was introduced into the Western Hemisphere in the mid 1970s and had colonized northern USA and southern Canada within about ten years. It apparently is restricted to northern states (Voegtlin 1988). The honeysuckle witches’ broom aphid completes its entire life cycle on honeysuckle, to which it causes major damage in North America. The coriander aphid has been found only in Florida and California.