Nano formulated chitosan for management of root knot nematode, Meloidogyne enterolobii in guava

Abstract

A study was conducted to assess the efficacy of chitosan nano formulation against root knot nematode, Meloidogyne. enterolobii infecting guava. Under in vitro conditions, the nano formulation exhibited strong nematicidal activity. In glasshouse experiment, application of chitosan nano formulation @5ml/plant reduced the nematode population in soil by 64.52 per cent and the number of egg masses and adult female nematodes by 67.61 and 46.80 per cent respectively. Under field conditions, infective juvenile population in soil was reduced by 52.97 per cent compared to untreated control. In addition, it also resulted in 31.42 and 31.03 percent reduction in the number of egg masses and adult female nematodes in roots, respectively.