Raised Bed Onion Aphid Infestation.

Raised Bed Onion Aphid Infestation.

Observation - Raised Bed Onion Aphid Infestation. - UK and Ireland. Description: Neotoxoptera formosana - No iSpot drop-down. Badly infesting my Chives and Garlic Chives, if it is t

Neotoxoptera formosana - No iSpot drop-down.
Badly infesting my Chives and Garlic Chives, if it is this species, this foreign aphid is not normally considered resident in the UK, although apparently occasionally imported with foreign Allium goods. There was a well documented infestation at Wisley in 2000 (via over-wintered garlic cloves), but sprayed and thought to be eradicated - with only occasional individuals caught in aerial suction traps since (possibly thought to originate from the continent).
I did buy some "English Garlic" a couple of years back which arrived via Hong Kong, so that would be a possible source.