TY - BOOK AU - GURVINDER JIT Singh TI - Biology of myzus persicae (Sulzer) on rocket salad (Eruca sativa Linn.) in the Punjab U1 - 633.85 G96B PY - 1984/// PB - Ludhiana KW - OILSEED PLANTS -- DISEASES AND PESTS KW - BIOLOGY KW - ENTOMOLOGY KW - GREEN PEACH APHID KW - MYZUS PERSICAE KW - ROCKET SALAD N2 - Total duration of nymphal stage was 11 days The nymphal survival was lowest during April-May The pre-reproductive, reproductive and post-reproductive periods were 2.6,374 and 10.4 days during; December-March and 0, 3.5 and 1.33 days during April-May The a ER -