M. incognita. The nematode species was later described from other regions in China and mainly on guava, Psidium guajava. ABSTRACT Meloidogyne enterolobii has severely compromised the main guava producing regions in Brazil, thereby stimulating the development of resistant varieties for efficient management of this nematode. The species was identified using morphometry and with the help of Polymerase Chain Reaction (PCR) common 18S primer as Meloidogyne enterolobii further confirmed by sequencing the 18s rRNA gene. Biology and Identification . These reports have prompted previous alerts from the North Carolina Department of Agriculture & Consumer Services and the NC State Vegetable Pathology Lab , as well as research regarding chemical control methods. M. enterolobii. Meloidogyne enterolobii was first discovered parasitizing roots of pacara earpod tree, Enterolobium contortisiliquum in China in 1983 (Yang & Eisenback, 1983). The guava root-knot nematode has the distinction of … Genetic diversity of the root-knot nematode Meloidogyne enterolobii and development of a SCAR marker for this guava-damaging species M. Tiganoa, K. de Siqueiraa, P. Castagnone-Serenob, K. Muletb, P. Queiroza, M. dos Santosa, C. Teixeiraa, M. Almeidaa, J. Silvaa and R. Carneiroa* aEmbrapa Recursos Gene ´ticos e Biotecnologia, CP 02372, 70770-917 Brasılia, DF, Brazil; and bINRA-UMR1301, UNSA, The presence of the root-knot nematode, Meloidogyne enterolobii, in guava commercial orchards in many Brazilian states has caused severe loss to growers. infect a large number of crops including guava. Guava root-knot nematode is very similar to our common root-knot nematode in the type of damage it causes and its host range and morphology. Abstract Guava orchards of Tamil Nadu were facing sudden decline and sampling revealed the incidence of root knot nematode. ----- confirmed host. Meloidogyne enterolobii differs from M. incognita by the following morphological characteristics. Steps have been taken to eradicate this nematode in the one field where it was detected, and it is not clear at this time if this nematode is actually established in our state. Jindapunnapat K, Chinnasri B, Kwankuae S (2013) Biological control of root-knot nematodes (Meloidogyne enterolobii) in guava by the fungus Trichoderma harzianum. Guava root-knot nematode (GRKN) is a tropical/subtropical species of root-knot nematode. What is the guava root-knot nematode? This study screened 51 accessions of Psidium spp. selected from the Psidium Germplasm Collection (Embrapa) to look for resistance against M. enterolobii. The presence of Meloidogyne enterolobii on two hosts and in several locations in Costa Rica is reported.Meloidogyne spp. Root-knot nematodes (Meloidogyne spp.) Root knot in sweetpotato is caused by nematodes of the genus Meloidogyne including but not limited to Meloidogyne incognita (southern root knot nematode), Meloidogyne enterolobii (guava root knot nematode, synonym Meloidogyne mayaguensis), Meloidogyne javanica (javanese root knot nematode), Meloidogyne hapla (northern root knot nematode), and Meloidogyne arenaria (peanut root knot nematode). The guava crop has been severely attacked by the plant parasitic nematode Meloidogyne enterolobii which has caused drastic reduction of productivity and, in some cases, even total loss of cultivated areas. The present investigations were carried out to study bio-intensive management of Meloidogyne enterolobii causing root-knot in tomato and guava. 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