Department of Sericulture, Sri Padmavati Mahila University, Tirupati-517 501, Andhra Pradesh, India.
*Corresponding Author: P. Victoria Rani, D.K. Govt. College For Women (A), Nellore-524 004, Andhra Pradesh, India. Email: pvrani54@gmail.com
Online published on 25 January, 2022.
The root knot nematode Meloidogyne incognita Chit wood infesting mulberry is economically important in silk industry as it affects the leaf yield both quantitatively and qualitatively which in turn affects the silkworm Bombyx mori L., growth and cocoon yield because its foliage is the sole food source of silkworm.
Hence a pot experiment was conducted for the evaluation of efficacy of eco-friendly formulate like botanical extract from Passiflora foetida L., to manage nematode disease severity applied as soil amendment and aqueous leaf extracton nematode egg hatching.
After treatment, nematode infestation reduced significantly in terms of number of root knots/g root weight and nematode egg masses/g root weight in mulberry plants and the treated plants showed better growth in shoot and root lengthcompared to control plants. The aqueous extract of P. foetida showed maximum inhibition of egg hatchability with an increase in the concentration of plant extract
Egg hatchability, Meloidogyne incognita, Mulberry, Passiflora foetida, Root knots