Females of Coccophagus scutellaris are approximately 1.5 mm in size and black with a yellow-white spot on their back. The male is slightly smaller, all black without a bright spot. Soft scales that are parasitized by C. scutellaris turn black within about two weeks. The young wasp will hatch around 1 week later through a hole at the end of the pupa. When the parasitoid has hatched the black colored dead soft scale remains on the plant. With a looking glass you can see the hole through which the parasitoid has emerged.
Mode of action:
Coccophagus parasitizes small stages of soft scales. One parasitoid develops from a single soft scale. Coccophagus has relatively few problems with presence of ants. Adult wasps feed themselves by puncturing younger stages of soft scale and sucking them. These young softscales die because of this host-feeding behaviour of the parasitoid.
Coccophagus can be used both indoors and outdoors, eg. In nurseries, greenhouses and indoor plants. Coccophagus is effective against the brown soft scale (Coccus hesperidum) and against hemispherical scale (Saissetia coffeae) but other soft scale species may be parasitized as well. Coccophagus scutellaris can be used to control Pulvinaria scales as well as european fruit scale (Parthenolecanium). Consider repeated introductions. The product is sensitive to various chemical pesticides.
effect of Coccophagus
- parasitize small stages of soft scale
- one parasitoid per host
- Host feeding on small stages
- relatively tolerant to ants
The product Coccophagus
doorzichtig potje van 40 ml met 25 volwassen sluipwespen.
maximaal 2 dagen bij 10-15°C.
stelt geen hoge eisen aan de luchtvochtigheid. De temperatuur moet wel regelmatig boven de 18°C uitkomen.