Leaf Miner Parasites

Dacnus sibira and Diglyphus isaea

Dacnus sibirica is a tiny parasitic wasp. It is related to the common wasp but looks much more like a fly to the naked eye - being black and brown. It does not sting humans, but it does sting leaf miner larvae, and it then deposits its egg inside its prey, so that the new wasp emerges from the It works best early season (15 degrees) but is sensitive to the higher temperatures of midsummer - so if your greenhouse is getting above 30degrees in midsummer then choose Diglyphus rather than Dacnus. Most commercial growere use both predators.

The Standard pack should give good control for an average conservatory or small greenhouse.

Diglyphus isaea is another tiny parasitic wasp. It works in a similar way to Dacnus, but actually leaves the egg just outside the leafminer larvae, rather than within it. It works best in higher temperatures of midsummer - so if your greenhouse is getting above 20 degrees then choose Diglyphus rather than Dacnus. Most commercial growere use both predators. Diglyphyus requires a reasonable level of leafminers to be present already on the crop.

The Standard pack should give good control for an average conservatory or small greenhouse.