Pieris brassicae; FOOD-PLANTS; Cauliflower; HYMENOPTERAN-PARASITES; Apanteles glomeratus & Diadegma; Prevalence & role as mortality cause; DISEASES-AND-DISORDERS; MORTALITY-; Causes; INSECT-PREDATORS; Polistes hebreus (Hymenoptera); Mortality cause significance; CULTIVATED-LAND-HABITAT; HIMACHAL-PRADESH; Mortality causes, food plant, cultivated land Apanteles glomeratus; Diadegma; LEPIDOPTERAN-HOSTS; Pieris brassicae; Mortality cause significance; CULTIVATED-LAND-HABITAT; HIMACHAL-PRADESH; Lepidopteran host, importance as mortality cause, cultivated land Polistes hebreus; INSECT-PREY; Pieris brassicae (Lepidoptera); Mortality cause significance; CULTIVATED-LAND-HABITAT; HIMACHAL-PRADESH; Lepidopteran prey, importance as mortality cause, cultivated land The impact of natural enemies on populations of Pieris brassicae on cauliflower was studied in the field in Himachal Pradesh, India, in 1986-88. The natural enemies recorded were Apanteles glomeratus [Cotesia glomerata], Polistes hebraeus [P. olivacems], Diadegma sp., bacteria and viruses. C. glomerata caused the highest mortality of the pest, attacking late-instar larvae of the 2nd generation. P. olivaceus also caused considerable mortality, preying on eggs and larvae of the 3rd generation, and the caused considerable larval mortality in the 2nd and 3rd generations. none