Biological control potentials of mycoflora associated with cocoa pod leaf root and rhizosphere soil in Nigeria

Adedeji A.R., . and Agbeniyi S.O., . and Odebode A.C., . (2006) Biological control potentials of mycoflora associated with cocoa pod leaf root and rhizosphere soil in Nigeria. [Proceedings Paper]

Three Trichoderma species commonly encountered with cocoa pod leaf and rhizosphere soil were screened in vitro for their potential biological control activities against Phytophthora megakarya the causal organism of pod rot disease of cocoa Theobroma cacao L. in Nigeria. Their frequency of occurrence was determined along other fungi. Trichoderma harzianum and T. viride were more frequently isolated than T. atroviride from all the major cocoa growing zones. The frequency of occurrence of T. harzianum was more than that of T. viride Owena zone least of occurrence of Trichoderma spp. None of the three species of Trichoderma screened produce rot or any other disease symptoms on the cocoa pod however they were readily re-isolated from the pod tissues around the point of inoculation.

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Abstract

Three Trichoderma species commonly encountered with cocoa pod leaf and rhizosphere soil were screened in vitro for their potential biological control activities against Phytophthora megakarya the causal organism of pod rot disease of cocoa Theobroma cacao L. in Nigeria. Their frequency of occurrence was determined along other fungi. Trichoderma harzianum and T. viride were more frequently isolated than T. atroviride from all the major cocoa growing zones. The frequency of occurrence of T. harzianum was more than that of T. viride Owena zone least of occurrence of Trichoderma spp. None of the three species of Trichoderma screened produce rot or any other disease symptoms on the cocoa pod however they were readily re-isolated from the pod tissues around the point of inoculation.

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Item Type:	Proceedings Paper
Additional Information:	4 tables
AGROVOC Term:	THEOBROMA CACAO
AGROVOC Term:	FUNGI
AGROVOC Term:	MICROBIAL FLORA
AGROVOC Term:	FRUIT
AGROVOC Term:	ROOTS
AGROVOC Term:	BIOLOGICAL CONTROL
AGROVOC Term:	NIGERIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/15652

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