Aphidoletes aphidimyza
adult gall-midges will leave the bottle and spread The dosage of Aphidend depends on climate, crop and aphid density and should always be adjusted to the [...] eventually decay. The quantity of aphids consumed by a gall midge larva depends on temperature, relative humidity, age and size of the aphids, and the aphid [...] required to consume an aphid can vary from a few minutes to several hours, depending on the age and nutritional condition of the predator, as well as the size