Folia Horticulturae

Current issue content   Search      

Natural reduction of willow carrot aphids by Coccinellidae on a carrot crop

Jacek Lipok

Department of Plant Protection
Agrobiochemistry Institute of Chemistry, Pedagogical University of Opole
Oleska 48, 45-951 Opole, Poland

A very high natural reduction of aphids by Coccinellidae on two carrot fields near Opole in southern Poland was observed in 1991. The carrot plants were from 73 to 98% infested by aphids. In spite of this, coccinellids adults and larvae effectively reduced the aphid population, suggesting that chemical control of pests may be omitted.

Lipok J., 1993. Natural reduction of willow carrot aphids by Coccinellidae on a carrot crop. Folia Horticulturae V/2: 87-93.