1Department of Agril. Entomology, T.N.A.U., Coimbatore, 641 003.
2Tamil Nadu Rice Research Institute, Aduthurai, (T.N.), India.
Central Institute for Cotton Research, Regional Station, Coimbatore, 641 003.
Significantly the lowest number of egg mass (1 egg mass/plant) and the lowest % of dead heart and white ear were recorded in plants applied with co-its + 25:25:25 kg NPK ha−1. Among the different treatments tested, significantly lowest number of adult emerged (0.5 number/plant) was from co-its + 25:25:25 kg NPK ha−1 treated plants. The total developmental period of stem borer was significantly prolonged in all the treatments which received Azospirillum brasilense + VAM co-inoculants along with organic and varying levels of NPK fertilizers (46.5 to 41.14 days). Crude silica, phosphorus and potassium content was significantly different due to interaction of co-its, organic and inorganic fertilizers.
Azospirillum brasilense, Organic & inorganic fertilizers, Oryza sativa, Scirpophaga incertulas
