Occurrence and Seasonal Variation of Hemicriconemoides mangiferae from Tropical and Subtropical Orchards in Peninsular India
Authors
Pullikuth Ashokkumar
Sivagami Vadivelu
Usha K. Mehta
R. Jeyarajan
A. Regupathy
Keywords:
Achras zapota, Artabotrys odoratissimus, Hemicriconemoides cocophillus, H. gaddi, H. mangiferae, Host-Parasite Association, Mangifera indica, Population Dynamics, Rosa Spp., Seasonal Variation, Vitis vinifera
Abstract
Hemicriconemoides mangiferae was prevalent in the major mango (Mangifera indica) and sapota (Achras zapota) growing tracts in peninsular India. Prominence of Hemicriconemoides spp. increased in sandy loam soils (Prominence value = 108.31). Relative prominence of Hemicriconemoides spp. from nine geographical locations was 41%. Hemicriconemoides mangiferae, H. gaddi, and H. cocophillus were found to be associated with 21 plant species among 19 genera in 17 families. Fourteen of the 18 plant species harboring H. mangiferae are reported to be associated with the nematode from South India for the first time. New additions of host-parasite associations of H. mangiferae are Rosa spp., Artabotrys odoratissimus, and Vitis vinifera. Seasonal variation of H. mangiferae was studied in a 5-year-old sapota field. The population was abundant in October 1986 following monsoon and below detectable levels during a dry winter period in January 1987 Monthly rainfall and mean soil moisture were correlate
