The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana

Research output: Contribution to journal › Review › Research › peer-review

Standard

The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana. / Asitoakor, Bismark Kwesi; Ræbild, Anders; Asare, Richard; Vaast, Philippe; Howe, Andy G.; Eziah, Vincent Yao; Owusu, Kwadwo; Mensah, Eric Opoku; Kotey, Daniel Ashie; Ravn, Hans Peter.

In: Crop Protection, Vol. 184, 106810, 2024.

Research output: Contribution to journal › Review › Research › peer-review

Harvard

Asitoakor, BK, Ræbild, A, Asare, R, Vaast, P, Howe, AG, Eziah, VY, Owusu, K, Mensah, EO, Kotey, DA & Ravn, HP 2024, 'The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana', Crop Protection, vol. 184, 106810. https://doi.org/10.1016/j.cropro.2024.106810

APA

Asitoakor, B. K., Ræbild, A., Asare, R., Vaast, P., Howe, A. G., Eziah, V. Y., Owusu, K., Mensah, E. O., Kotey, D. A., & Ravn, H. P. (2024). The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana. Crop Protection, 184, [106810]. https://doi.org/10.1016/j.cropro.2024.106810

Vancouver

Asitoakor BK, Ræbild A, Asare R, Vaast P, Howe AG, Eziah VY et al. The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana. Crop Protection. 2024;184. 106810. https://doi.org/10.1016/j.cropro.2024.106810

Author

Asitoakor, Bismark Kwesi ; Ræbild, Anders ; Asare, Richard ; Vaast, Philippe ; Howe, Andy G. ; Eziah, Vincent Yao ; Owusu, Kwadwo ; Mensah, Eric Opoku ; Kotey, Daniel Ashie ; Ravn, Hans Peter. / The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana. In: Crop Protection. 2024 ; Vol. 184.

Bibtex

@article{7a98f655d89e42fda5623d456611bc4d,
title = "The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana",
abstract = "Pests and diseases are major determinants of cocoa yield, but continuous synthetic chemical control of cocoa pests contributes to environmental pollution and high production costs. As an alternative, we assessed the influence of eight commonly retained forest tree species on mirid and black pod disease infestation, compared to unshaded portions in 10 cocoa fields in the Western region of Ghana. The influence of tree species, on-farm temperature, rainfall, and relative air humidity was assessed on mirid population densities on cocoa trees, and mirid and black pod disease infested pods from May 2018 to December 2020. Shade tree species had significant effects on mirid densities and resulting pod damages, with highest mirid occurrence in Triplochiton scleroxylon K. Schum (0.51 ± 0.12 mirids tree−1 yr−1) and lowest occurrence in Khaya ivorensis A. Chem (0.21 ± 0.07 mirids tree−1 yr−1), Cedrela odorata L. (0.22 ± 0.09 mirids tree−1 yr−1) and Milicia excelsa (Welw.) C. Berg. (0.24 ± 0.09 mirids tree−1 yr−1) plots, compared to the unshaded control plots (0.48 ± 0.12 mirids tree−1 yr−1). Black pod disease (caused by Phytophthora spp.) infection was significantly different among species with highest pod damage observed around Cola nitida Schott and Endl. and least in unshaded areas. The occurrence of black pod disease varied with seasons and correlated with monthly rainfall and humidity, while mirid infestation correlated with monthly temperature. The diameter of shade trees and the density of cocoa trees influenced both mirid infestation and black pod disease infection. Hence, careful selection of shade tree species appears to be an important strategy to enhance integrated pest management (IPM) in cocoa systems.",
keywords = "Climatic conditions, Cocoa canopy, Integrated pest management, Phytophthora spp. smallholder farmers, Sustainable cocoa production",
author = "Asitoakor, {Bismark Kwesi} and Anders R{\ae}bild and Richard Asare and Philippe Vaast and Howe, {Andy G.} and Eziah, {Vincent Yao} and Kwadwo Owusu and Mensah, {Eric Opoku} and Kotey, {Daniel Ashie} and Ravn, {Hans Peter}",
note = "Publisher Copyright: {\textcopyright} 2024 The Authors",
year = "2024",
doi = "10.1016/j.cropro.2024.106810",
language = "English",
volume = "184",
journal = "Crop Protection",
issn = "0261-2194",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - The potential of selected shade tree species for managing mirids and black pod disease infection in cocoa agroforestry systems in Ghana

AU - Asitoakor, Bismark Kwesi

AU - Ræbild, Anders

AU - Asare, Richard

AU - Vaast, Philippe

AU - Howe, Andy G.

AU - Eziah, Vincent Yao

AU - Owusu, Kwadwo

AU - Mensah, Eric Opoku

AU - Kotey, Daniel Ashie

AU - Ravn, Hans Peter

N1 - Publisher Copyright: © 2024 The Authors

PY - 2024

Y1 - 2024

N2 - Pests and diseases are major determinants of cocoa yield, but continuous synthetic chemical control of cocoa pests contributes to environmental pollution and high production costs. As an alternative, we assessed the influence of eight commonly retained forest tree species on mirid and black pod disease infestation, compared to unshaded portions in 10 cocoa fields in the Western region of Ghana. The influence of tree species, on-farm temperature, rainfall, and relative air humidity was assessed on mirid population densities on cocoa trees, and mirid and black pod disease infested pods from May 2018 to December 2020. Shade tree species had significant effects on mirid densities and resulting pod damages, with highest mirid occurrence in Triplochiton scleroxylon K. Schum (0.51 ± 0.12 mirids tree−1 yr−1) and lowest occurrence in Khaya ivorensis A. Chem (0.21 ± 0.07 mirids tree−1 yr−1), Cedrela odorata L. (0.22 ± 0.09 mirids tree−1 yr−1) and Milicia excelsa (Welw.) C. Berg. (0.24 ± 0.09 mirids tree−1 yr−1) plots, compared to the unshaded control plots (0.48 ± 0.12 mirids tree−1 yr−1). Black pod disease (caused by Phytophthora spp.) infection was significantly different among species with highest pod damage observed around Cola nitida Schott and Endl. and least in unshaded areas. The occurrence of black pod disease varied with seasons and correlated with monthly rainfall and humidity, while mirid infestation correlated with monthly temperature. The diameter of shade trees and the density of cocoa trees influenced both mirid infestation and black pod disease infection. Hence, careful selection of shade tree species appears to be an important strategy to enhance integrated pest management (IPM) in cocoa systems.

AB - Pests and diseases are major determinants of cocoa yield, but continuous synthetic chemical control of cocoa pests contributes to environmental pollution and high production costs. As an alternative, we assessed the influence of eight commonly retained forest tree species on mirid and black pod disease infestation, compared to unshaded portions in 10 cocoa fields in the Western region of Ghana. The influence of tree species, on-farm temperature, rainfall, and relative air humidity was assessed on mirid population densities on cocoa trees, and mirid and black pod disease infested pods from May 2018 to December 2020. Shade tree species had significant effects on mirid densities and resulting pod damages, with highest mirid occurrence in Triplochiton scleroxylon K. Schum (0.51 ± 0.12 mirids tree−1 yr−1) and lowest occurrence in Khaya ivorensis A. Chem (0.21 ± 0.07 mirids tree−1 yr−1), Cedrela odorata L. (0.22 ± 0.09 mirids tree−1 yr−1) and Milicia excelsa (Welw.) C. Berg. (0.24 ± 0.09 mirids tree−1 yr−1) plots, compared to the unshaded control plots (0.48 ± 0.12 mirids tree−1 yr−1). Black pod disease (caused by Phytophthora spp.) infection was significantly different among species with highest pod damage observed around Cola nitida Schott and Endl. and least in unshaded areas. The occurrence of black pod disease varied with seasons and correlated with monthly rainfall and humidity, while mirid infestation correlated with monthly temperature. The diameter of shade trees and the density of cocoa trees influenced both mirid infestation and black pod disease infection. Hence, careful selection of shade tree species appears to be an important strategy to enhance integrated pest management (IPM) in cocoa systems.

KW - Climatic conditions

KW - Cocoa canopy

KW - Integrated pest management

KW - Phytophthora spp. smallholder farmers

KW - Sustainable cocoa production

U2 - 10.1016/j.cropro.2024.106810

DO - 10.1016/j.cropro.2024.106810

M3 - Review

AN - SCOPUS:85195597543

VL - 184

JO - Crop Protection

JF - Crop Protection

SN - 0261-2194

M1 - 106810

ER -

ID: 397604620