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Contains
Aphidius ervi as mummies. Unit: 250 in 250ml bottle. Target Pest
Parastizes large aphid species such as the potato aphid (Macrosiphium euphorbiae) and the glasshouse potato aphid (Aulacorthum solani). Instructions
» | Release in early morning or evening. | » | Ensure tube is only opened once in introduction site. Some adults may have emerged from mummies. | » | For preventative treatments, distribute mummies evenly through the crop by holding bottle horizontally and releasing amongst the foliage. | » | For small aphid colonies, concentrate higher numbers into the infested area. |
Introduction Rates
Regular preventative introductions give the best results at a rate of 0.25 per m2 per week. Conditions
Effective on well dispersed populations of aphids in temperatures up to 30°C. Storage
» Use on day of receipt. Technical Information
Aphidius ervi is a small parasitic wasp (4mm long) which lays its eggs into aphids. The aphids continue to feed and develop while the wasp larva feeds internally. Eventually the larva will kill the aphid and pupate within it, giving the characteristic brown mummy appearance. Mummies appear in the crop about two weeks after the first introduction. It is more effective than Aphidius colemani against larger species of aphids such as Macrosiphium euphorbiae.
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