CFIA approves release of 2 wasps to control emerald ash borer
The Canadian Food Inspection Agency (CFIA) has approved the release of two tiny wasps from China for the biological control of the Emerald Ash Borer.
The wasps eat the emerald ash borer beetles. Before these beetles, there were no natural enemies in North America for this foreign pest.
One of the wasps is a eulophid wasp and the other is a braconid wasp. A third wasp hasn’t been approved because there wasn’t enough information to indicate if its release in Canada would be harmful to any of our native insects.
Eulophids are a little over a millimetre long, while braconids very slightly larger. Both lay their eggs inside other insects such as moths, butterflies and beetles. The young wasps hatch and eat their way out of the host insect, killing it.
Approved: Tiny wasps that kill emerald ash borer (Ottawa Citizen)