Effect of Bio Control Agents in the Management of Citrus Nematode (T. semipenetrans) on Khasi Mandarin Seedling
Bornali Mahanta *
Department of Nematology, Assam Agricultural University, Jorhat-785013, Assam, India.
Polash L. Borthakur
Department of Nematology, Assam Agricultural University, Jorhat-785013, Assam, India.
Aparajita Borah
Department of Nematology, Assam Agricultural University, Jorhat-785013, Assam, India.
Pranab Dutta
Department of Plant Pathology, College of Post Graduate Studies in Agricultural Sciences, CAU (Imphal), Umiam, Meghalaya, India.
*Author to whom correspondence should be addressed.
Abstract
Studies on the effect of Purpureocillium lilacinum, Glomus fasciculatum, Trichoderma harzianum, vermicompost and carbofuran 3G in the management of Tylenchulus semipenetrans on Khasi mandarin under pot condition showed that all thetreatments were effective in increasing plant growth parameters of Khasi mandarin. All the treatments significantly decreased the final nematode population in soil and root over control. The treatment with vermicompost @ 15g/plant+ T. harzianum 10g/plant was found to be most effective in plant growth parameters of Khasi mandarin. The treatment with carbofuran 3G@ 4g/plant was found to be best in suppressing the final nematode population in soil and root followed by the treatment with G. fasciculatum@ 150spores/plant + P. lilacinus@10g/plant.
Keywords: Purpureocillium lilacinum, Glomus fasciculatum, Trichoderma harzianum, vermicompost, khasi mandarin