PARASITOIDS OF THE WHITE POWDERY SCALE, CRIBROLECANIUM-ANDERSONI (NEWSTEAD) (HEMIPTERA, COCCIDAE), A PEST OF CITRUS

The white powdery scale Cribrolecanium andersoni (Newstead), which occ urs on citrus in South Africa and Swaziland, is of economic importance . The scale secretes honeydew on which sooty mould develops. Parasitoi d sampling entailed the collection of C. andersoni-infested leaves at seven different localities. Female and male Euxanthellus philippiae Si lvestri (Aphelinidae), the female Coccophagus pulvinariae Compere (Aph elinidae), Metaphycus spp. (Encyrtidae), an unidentified encyrtid (pro bably a new genus), Tetrastichus sp. (Eulophidae) and a male Coccophag us sp. were found to be parasitoids of C. andersoni. E. philippiae and the unidentified encyrtid appeared to be the most common parasitoids of C. andersoni. No parasitoids were collected from first-instar C. an dersoni. The number of parasitized C. andersoni was the lowest during October to December.