Plant Disease (2022) 106, p. 2530 (Serrato-Diaz et al.)

Luz M. Serrato-Diaz, T. Ayala-Silva and R. Goenaga (2022)
First report of Diaporthe tulliensis and D. pseudomangiferae causing cacao pod rot in Puerto Rico
Plant Disease 106 (9), 2530-2530
Abstract: During 2020 and 2021, cacao pods (Theobroma cacao) grown at the USDA-ARS cacao germplasm collection in Puerto Rico were observed with symptoms of pod rot. The disease incidence 73.9%, observed in 142 of the 196 accessions sampled. Pod rot was observed at different stages of pod development (small, green, mature pods and dry, mummified, large pods). The fungi Diaporthe tulliensis and Diaporthe pseudomangiferae were isolated from the diseased pods. The identification was based on morphological characteristics and DNA sequence analysis. Pathogenicity of the isolates was demonstrated by inoculation and re-isolation.
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Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Diaporthe tulliensis	Cacao (Theobroma cacao)	Puerto Rico
	Diaporthe pseudomangiferae	Cacao (Theobroma cacao)	Puerto Rico