Bursaphelenchus cocophilus

Bursaphelenchus • Parasitaphelenchidae • plant parasitic nematodes • pests-diseases-weeds

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oil palms (Elaeis guineensis) infected with Bursaphelenchus cocophilus - left: symptoms on standing palm, right: necrotic rings in the trunks of the palms (click on image to enlarge it)
Authors: Greicy Andrea Sarria et al.
Source: Journal of Nematology (2020) vol. 52 art. 117

Bursaphelenchus cocophilus (Cobb, 1919) - (red ring disease)

This nematode causes the red ring disease of coconut palm in Central and South America. It is found from Mexico to northern parts of South America. The nematodes invades the xylem of the stem, resulting in death of the palm. Many thousands of coconut palms have been killed in some countries within a year. It can also infect oil palms.

Infected palms develop chlorosis, wilt and a red, necrotic ring becomes visible when the trunk is transected. The nematode is transmitted by the weevil Rhynchophorus palmarum. Management practices include early detection and felling of infected palms and trapping of the vector weevil.

Synonyms:
Rhadinaphelenchus cocophilus

Vernacular names
• English:	red ring disease
• Español:	anillo rojo
• Français:	l'anneau rouge des cocotiers