Arbuscular Mycorrhizal (AM) fungi for management of root knot Nematode, Meloidogyne incognita on Tomato Shanthi A. Department of Nematology, Centre for Plant Protection Studies, T.N.A.U., Coimbatore-641 003 (T.N.), India, shanthigovardhan@yahoo.co.in Online published on 9 August, 2019. Abstract Pot culture experiments were conducted under glasshouse conditions to evaluate the biocontrol efficacy of arbuscular mycorrhizal fungi viz., Acaulospora levis, Gigaspora margarita, Glomus mosseae, G. macrocarpum and Rhizophagus intraradices @ 15 g plant−1 and compared with carbofuran 3G and an untreated control. Among these, application of R. intraradices @ 15 g plant−1 was found to be effective, which enhanced the plant growth parameters by 62.3%, 47.6%, 45.3%, 56.0%, 46.2% of shoot length, shoot weight, root length, root weight and fruit weight, respectively along with 64.3% of AM colonization, increased spore load (169.3/100cc soil) and 0.55% of total phosphorus content. Soil population of M. incognita was also found to be significantly reduced by 49.4% with gall index (2.5). The effect was followed by G. mosseae, G. macrocarpum and G. margarita. However, A. levis showed the least effective against M. incognita and it was at par with carbofuran 3G application. Top Keywords AM fungi, Meloidogyne incognita, Solanum lycopersicum, Spore load. Top |