SURVEY ON THE COMPOSITION OF PLANT PARASITIC NEMATODES ON GUAVA IN CHAU THANH DISTRICT, DONG THAP PROVINCE

Abstract

Guava (Psidium guajava L.) is a popular fruit tree cultivated in many regions around the world. This study aimed to investigate the composition of nematode species in 30 guava orchards across eight communes: An Khanh, Phu Huu, Hoa Tan, An Phu Thuan, Phu Long, Tan Nhuan Dong, An Nhon and An Hiep, located in Chau Thanh district, Dong Thap province. The survey recorded five nematode species belonging to five genera and four families, all within the order Tylenchida. The identified nematode species associated with guava include Meloidogyne enterolobii, Helicotylenchus dihystera, Tylenchorhynchus sp., Rotylenchulus reniformis and Mesocriconema sp. Based on observed damage symptoms, population density and frequency of occurrence, Meloidogyne enterolobii was determined to be the most significant nematode species affecting guava trees.