Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystem

Pesticides have become integral parts of cocoa cultivation for the management of insect pests and fungal pathogens which cause significant damage to the crop. However, continuous pesticides usage in the cocoa agro-ecosystem is of concern due to perceived adverse effects on non-target organisms. In t...

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Main Authors: Eric Asare Kumi, Silas Wintuma Avicor, Yahaya Bukari, Ishmael Amoako-Attah, Solomon Agyare, Mabel Yeboah, Michael Wiafe-Kwagyan
Format: Article
Language:English
Published: University of Brawijaya 2023-01-01
Series:Journal of Tropical Life Science
Subjects:
Online Access:https://jtrolis.ub.ac.id/index.php/jtrolis/article/view/2192
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author Eric Asare Kumi
Silas Wintuma Avicor
Yahaya Bukari
Ishmael Amoako-Attah
Solomon Agyare
Mabel Yeboah
Michael Wiafe-Kwagyan
author_facet Eric Asare Kumi
Silas Wintuma Avicor
Yahaya Bukari
Ishmael Amoako-Attah
Solomon Agyare
Mabel Yeboah
Michael Wiafe-Kwagyan
author_sort Eric Asare Kumi
collection DOAJ
description Pesticides have become integral parts of cocoa cultivation for the management of insect pests and fungal pathogens which cause significant damage to the crop. However, continuous pesticides usage in the cocoa agro-ecosystem is of concern due to perceived adverse effects on non-target organisms. In this study, mushrooms and associated termites were used to elucidate the possible effect of insecticides and fungicides on non-target organisms in the cocoa agro-ecosystem.  Vegetative phase of Pleurotus sajor-caju (Oyster mushroom), Volvariella volvacea (Paddy straw mushroom), Termitomyces globulus and Termitomyces robustus (Termite mushrooms) were subjected to concentrations of commercially formulated fungicides (metalaxyl 12 % + copper (I) oxide 60 % and cupric hydroxide 77 %) and insecticides (imidacloprid 20 % and bifenthrin 2.7 %) to observe their growth rates on Potato Dextrose Agar (PDA) medium. Worker termites, Macrotermes bellicosus, were also exposed to the pesticides in Petri dishes for 24 h to observe their mortality. The manufacturer’s recommended concentration of 245 ppm for bifenthrin completely inhibited mycelial growth of all the mushrooms and caused 100% mortality of termites. At 0.0245 ppm, the insecticide caused 60% mortality of termites, but it had no inhibitory effect on the mushrooms. Except P. sajor-caju, mycelial growth of all the other mushrooms were completely inhibited by metalaxyl + copper (I) oxide at the manufacturer’s recommended concentration of 2400 ppm. However, mycelial growth rate of the mushrooms at 0.24 ppm of the fungicide was similar to the control plates. This suggests that mushrooms could survive in the cocoa agro-ecosystem amidst pesticides at lower concentrations in cocoa soils.
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spelling doaj.art-b503abbcbe2140b691fcaef13cac23612023-09-12T01:28:16ZengUniversity of BrawijayaJournal of Tropical Life Science2087-55172527-43762023-01-0113111210.11594/jtls.13.01.012135Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystemEric Asare Kumi0Silas Wintuma Avicor1Yahaya Bukari2Ishmael Amoako-Attah3Solomon Agyare4Mabel Yeboah5Michael Wiafe-Kwagyan6Cocoa Research Institute of Ghana, Entomology DivisionCocoa Research Institute of Ghana, Entomology DivisionCocoa Research Institute of Ghana, Plant Pathology Division Cocoa Research Institute of Ghana, Plant Pathology Division Cocoa Research Institute of Ghana, Plant Pathology Division Cocoa Research Institute of Ghana, Plant Pathology Division University of Ghana LegonPesticides have become integral parts of cocoa cultivation for the management of insect pests and fungal pathogens which cause significant damage to the crop. However, continuous pesticides usage in the cocoa agro-ecosystem is of concern due to perceived adverse effects on non-target organisms. In this study, mushrooms and associated termites were used to elucidate the possible effect of insecticides and fungicides on non-target organisms in the cocoa agro-ecosystem.  Vegetative phase of Pleurotus sajor-caju (Oyster mushroom), Volvariella volvacea (Paddy straw mushroom), Termitomyces globulus and Termitomyces robustus (Termite mushrooms) were subjected to concentrations of commercially formulated fungicides (metalaxyl 12 % + copper (I) oxide 60 % and cupric hydroxide 77 %) and insecticides (imidacloprid 20 % and bifenthrin 2.7 %) to observe their growth rates on Potato Dextrose Agar (PDA) medium. Worker termites, Macrotermes bellicosus, were also exposed to the pesticides in Petri dishes for 24 h to observe their mortality. The manufacturer’s recommended concentration of 245 ppm for bifenthrin completely inhibited mycelial growth of all the mushrooms and caused 100% mortality of termites. At 0.0245 ppm, the insecticide caused 60% mortality of termites, but it had no inhibitory effect on the mushrooms. Except P. sajor-caju, mycelial growth of all the other mushrooms were completely inhibited by metalaxyl + copper (I) oxide at the manufacturer’s recommended concentration of 2400 ppm. However, mycelial growth rate of the mushrooms at 0.24 ppm of the fungicide was similar to the control plates. This suggests that mushrooms could survive in the cocoa agro-ecosystem amidst pesticides at lower concentrations in cocoa soils.https://jtrolis.ub.ac.id/index.php/jtrolis/article/view/2192agro-economycocoafungicidesinsecticidesmushroomstermites
spellingShingle Eric Asare Kumi
Silas Wintuma Avicor
Yahaya Bukari
Ishmael Amoako-Attah
Solomon Agyare
Mabel Yeboah
Michael Wiafe-Kwagyan
Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystem
Journal of Tropical Life Science
agro-economy
cocoa
fungicides
insecticides
mushrooms
termites
title Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystem
title_full Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystem
title_fullStr Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystem
title_full_unstemmed Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystem
title_short Survival of mushrooms and termites upon pesticide exposure in the cocoa agro-ecosystem
title_sort survival of mushrooms and termites upon pesticide exposure in the cocoa agro ecosystem
topic agro-economy
cocoa
fungicides
insecticides
mushrooms
termites
url https://jtrolis.ub.ac.id/index.php/jtrolis/article/view/2192
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