Gall Midges -various species

TYPE


HOSTS DESCRIPTION
Gouty Veingall Midge (Continaria negundinis)
Helen Atthowe - Missoula County Extension		 Boxelder
 Thickening along the midrib of boxelder leaf. One generation per year.  No treatment needed.
Honeylocust Podgall Midge (Dsineura gleditschiae)
Honey locust podgall midge
Helen Atthowe - Missoula County Extension
 Honeylocust

Larvae feed on developing leaves causing the pod like galls.  Galls darken, dry, and drop a few weeks after adults emerge. See below..






LIFE CYCLE: Honeylocust podgall midge overwinters in the adult stage near previously infested honeylocust plantings. Adults move to emerging honeylocust buds. Eggs are laid among the emerging leaves, and the larvae feed on the leaflets, causing them to curl and thicken into the pod gall. Larvae become full grown in about 3 to 4 weeks. and pupation occurs in the gall. There are three generations per year. Populations decline in early July.

CONTROLS:

                Cultural: Prune out infested growths.
Missoula County Extension Office; Missoula, Montana 59808 - Updated for 2006