Biological Control
Parasitic Wasps
Parasitic wasps are tiny parasitic wasps that lay their eggs inside aphids and then the larvae kill the aphid (the pictureis of an aphid mummy). They breed rapidly and the adults fly around searching out aphids, these best used inside especially in greenhouses.
The pest
Aphids suck the sap weakening plants, foliage may discolour and drop. Aphids produce a sticky deposit (honeydew) which later goes black on plants, they also transmit plant viruses. Three biological control products are available for aphid control, which include Ladybird Larvae,Lacewing Larvae and Parsitic Wasps.
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