Morphological identification of root-knot nematode and fungi associated with guava decline

The survey results revealed that Meloidogyne incognita and F. oxysporum f.sp. psidii were identified as the most prominent pathogens causing guava decline in Hisar, Jind and Bhiwani districts of Haryana. Morphometric observations were used for identification of major root-knot nematode obtained from the survey. Posterior cuticular pattern of adult females and morphological characters of males and second stage juveniles were also used for species level identification. Morphological identification of fungus associated with guava decline was identified as Fusarium oxysporum f.sp. psidii.