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Versión en español - Aide de traduction - Assistenza di traduzione - Übersetzungsunterstützung

Last modified: 4 December 2005

Contacts and sources of information - CICY, INIFAP, SAGAR

Occurrence - First observed in the Cozumel-Cancun area of Quintana Roo state in 1977 (McCoy et al, 1982).

Spread -
Amarillamiento letal spread westwards to El Cuyo in Yucatan by 1985 and southwards to Puerto Herrero (QR) by 1989 (Carrillo & Piña, 1990). In 1990 it appeared in the north of the state of Campeche and reached the south of that state in less than a year (Robert et al, 1991). Phytoplasma was identified in 1992-93 (Martínez-Soriano et al, 1994). By 1993 disease had reached and crossed the southern border of Quintana Roo (Escamilla et al, 1994) and reached the Campeche-Tabasco border (Escamilla et al, 1995). In 1995 outbreaks were detected at Frontera in Tabasco (Oropeza & Zizumbo, 1997). Reports of a jump spread to Oaxaca (Pacific coast) in 1996 were premature because the palms did not show typical LY symptoms.

Currently active areas -
On the Caribbean cost, since late 1999, the disease has become activity in the southeast of Veracruz, around Coatzacoalcos. The disease is active in Cunduacan in Tabasco and at Sisal in Yucatan. On the Pacific coast, phytoplasma related yellowing of coconut palms in Oaxaca did not show not show typical LY symptoms in 1999 but recently, reliable observations of LY-like symptoms were made around Atoyac, west of Acapulco in the state of Guerrero. The Pacific coast tall is known to show resistance to LY when tested in Yucatan (Zizumbo et al, 1999). The Pacific coast reports still have to be confirmed and their significance assessed.

Suspected new outbreaks - specify whether confirmed or unconfirmed (reference)

Other palm/plant hosts

New hosts, new vectors, new strains or suspected loss of resistance - confirmed or unconfirmed

Research projects

Rehabilitation/replanting programmes

Economic importance/threat

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