APS Homepage

Poster: Biology & Disease Mgmt: Nematology


Root Knot Nematode (Meloidogyne incognita) populations on eggplant could be reduced using Marigold extracts
A. HAMEED (1), N. Liaqat (2), K. Riaz (2), M. Alam (2), S. Sarfraz (2), S. Jameel (2) (1) University of Agriculture, Faisalabad, Pakistan, Pakistan; (2) University of Agriculture Faisalabad, 38040-Pakistan, Pakistan; (3) University of Agriculture Faisalab

Root knot nematode diseases are gaining importance in vegetables in Pakistan. Chemical pesticides are often hazardous and are discouraged due to their non-targeted effects. In this study, amongst the several powder plant extracts (5 gram equivalent) of selected indigenous plants such as Marigold (Tagetes erecta), Akk (Calotropis procera), Kanair (Nerium oleander) and Neem (Azadirachta indica), the marigold extracts not only decreased the root galling index (55.1%) and number of knots per plant on root system (47.4%) in the susceptible eggplant variety (cluster king) but also increased the germination (28, %) and plant vigor (32%) as compared to control plants harvested. Kanair (42.09 & 32.8%), Neem (37.56 & 28.5%) and Akk (31.51 & 21.69%) were also effective. These extracts were applied as seed treatment followed by drenching at an interval of ten days post emergence upto one month. Data was collected after two months and correlated scientifically.