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- Title
MANAGEMENT OF APHID, LIPAPHIS ERYSIMI (KALTENBACH) (HOMOPTERA: APHIDIDAE) IN CANOLA (BRASSICA NAPUS L.) CROP USING NITROGENOUS FERTILIZERS AND SYNTHETIC INSECTICIDES.
- Authors
Khan, S. M.; Rehman, H. U.
- Abstract
Field experiment was conducted at the farm of Faculty of Agriculture, Gomal University, Dera Ismail Khan to determine integrated effect of nitrogenous fertilizer and synthetic insecticides on aphid, Lipaphis erysimi (Kaltenbach) (Homoptera: Aphididae) population in canola crop during 2010-11. Results showed that tested insecticides significantly reduced aphid population compared to control. Minimum (8.67aphids) were recorded after 3rd week of treatment with karate 2.5 EC (625ml.ha-1) using medium dose (58kg.ha-1) of nitrogen fertilizer. The same treatment also provided maximum (1246.91kg.ha-1) grains yield. It was concluded from the present studies that tested levels of nitrogen fertilizer had no effect on aphid population, while synthetic insecticides significantly reduced pest infestation.
- Subjects
TURNIP aphid; APHID control; CANOLA; NITROGEN fertilizers; INSECTICIDES
- Publication
Pakistan Journal of Science, 2016, Vol 68, Issue 1, p17
- ISSN
0030-9877
- Publication type
Article