A sudden dieback of cocoa Theobroma cacao caused by Botryodiplodia theobromae


Citation

Ang B.B., . and Lim T.K., . and Tee S.K., . A sudden dieback of cocoa Theobroma cacao caused by Botryodiplodia theobromae. pp. 228-234. ISSN 0126-575X

Abstract

In early 1982 and mid-1985 a sudden dieback was observed on eight-year old and four-year old polyclonal cocoa trees respectively in an inland estate in Selangor following a period of intense drought. Similar dieback symptoms were observed on budgrafted polybags which were cut back too severely during the dry months. Isolations from disease tissues consistently yielded the fungus Botryodiplodia theobromae. The fungus was pathogenic on budgrafted seedlings when the seedlings were stressed a few days without watering prior to wound inoculation. The role of prevailing environmental factors on disease incidence and control measures are also discussed


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Abstract

In early 1982 and mid-1985 a sudden dieback was observed on eight-year old and four-year old polyclonal cocoa trees respectively in an inland estate in Selangor following a period of intense drought. Similar dieback symptoms were observed on budgrafted polybags which were cut back too severely during the dry months. Isolations from disease tissues consistently yielded the fungus Botryodiplodia theobromae. The fungus was pathogenic on budgrafted seedlings when the seedlings were stressed a few days without watering prior to wound inoculation. The role of prevailing environmental factors on disease incidence and control measures are also discussed

Additional Metadata

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Item Type: Article
Additional Information: 2 graphs; 8 plates; 6 ref. Summary (En)
AGROVOC Term: THEOBROMA CACAO
AGROVOC Term: BOTRYODIPLODIA
AGROVOC Term: PLANTACIONES
AGROVOC Term: MALASIA PENINSULAR/ PLANTULAS
AGROVOC Term: SINTOMAS DE ENFERMEDADES (PLANTAS)
AGROVOC Term: PODER PATOGENO
AGROVOC Term: AISLAMIENTO (TECNICA)
AGROVOC Term: INOCULACION
Depositing User: Ms. Norfaezah Khomsan
Last Modified: 24 Apr 2025 05:54
URI: http://webagris.upm.edu.my/id/eprint/18986

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