It’s a midge that prevents black wattle from setting seed. It has taken off like a rocket in release sites and is fast becoming one of the most important aspects of black wattle control.
It would be great if we could get the midge firmly established in the Southern Cape so please come and pick up some galls from the GRBG nursery. They will be delivered every Monday and Wednesday for the next 3 weeks. It’s easy to release (see instructions plus other info attached) and so effective it really is a crime NOT to do it.
And it is FREE !!!!
RELEASE OF WATTLE BIOCONTROL AGENT
1. Empty the bag of galls in the shade underneath a mature wattle tree
2. Ensure that there is not too much dust from passing traffic
3. Ensure that the tree will remain in place for 2 – 3 years from date of release
5. If possible take photographs of the release site and note the surrounding vegetation, aspect and soil.
Compiled by Marè Collett, Garden Route Botanical Garden, 49 Caledon Street, George