The garlic fly is one of the most important pests in garlic cultivation in the East of Austria. This pest only infests winter garlic, not summer garlic, which is seeded in spring. Moreover, some types of garlic are more susceptible than others: the traditional, local type of garlic grown in the Weinviertel region appears to be less infested or, at least, more resistant to infestation.
The flies have red-brown bodies, a wingspan of about 18 mm with mostly translucent wings and a grey shine along the wing veins. Like all flies, they possess halters, dumb-bell shaped organs, instead of hindwings. The flies winter as adults.
Bild: Adult garlic flies are 14 mm long and brown-red in colour. Their wings show a dark shadow along their horizontal veins.