A comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beans
Four storage pests; Tribolium castaneum (Herbst.), Lasioderma serricorne (Fab.), Sitophilus oryzae (L.) and Cadra cautella (Walker), were exposed in empty cocoa sheds to dichlorvos and pyrethrum fogs at doses ranging from 0.025-0.8 per cent, applied at the rate of one litre/20,000 ft3 (142 m3). Responses of each species to the two insecticides were compared. Although it was not possible to estimate ratios of potencies of the two insecticides for each species, it was established that over the dosage range used, dichlorvos had a clear superiority over pyrethrum. If tainting and residual tests on cocoa beans to be carried out in future prove favourable, it will be profitable for the Infestation Control Unit of the Ghana Cocoa Marketing Board to switch from pyrethrum to dichlorvos for the treatment of cocoa
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Tafo (Ghana)
1971
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Subjects: | CACAO, TRIBOLIUM CASTANEUM, LASIODERMA SERRICORNE, SITOPHILUS ORIZAE, PLAGAS DE PRODUCTOS ALMACENADOS, CONTROL DE PLAGAS, PIRETRINAS, INSECTICIDAS, CONTROL QUIMICO, ALMENDRAS, EPHESTIA CAUTELLA, |
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KOHA-OAI-BVE:672062020-02-03T21:34:21ZA comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beansProceedings 83228 Kisiedu, E.W. 5331 Cocoa Research Institute, Tafo (Ghana) 33021 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 Tafo (Ghana)1971Four storage pests; Tribolium castaneum (Herbst.), Lasioderma serricorne (Fab.), Sitophilus oryzae (L.) and Cadra cautella (Walker), were exposed in empty cocoa sheds to dichlorvos and pyrethrum fogs at doses ranging from 0.025-0.8 per cent, applied at the rate of one litre/20,000 ft3 (142 m3). Responses of each species to the two insecticides were compared. Although it was not possible to estimate ratios of potencies of the two insecticides for each species, it was established that over the dosage range used, dichlorvos had a clear superiority over pyrethrum. If tainting and residual tests on cocoa beans to be carried out in future prove favourable, it will be profitable for the Infestation Control Unit of the Ghana Cocoa Marketing Board to switch from pyrethrum to dichlorvos for the treatment of cocoaFour storage pests; Tribolium castaneum (Herbst.), Lasioderma serricorne (Fab.), Sitophilus oryzae (L.) and Cadra cautella (Walker), were exposed in empty cocoa sheds to dichlorvos and pyrethrum fogs at doses ranging from 0.025-0.8 per cent, applied at the rate of one litre/20,000 ft3 (142 m3). Responses of each species to the two insecticides were compared. Although it was not possible to estimate ratios of potencies of the two insecticides for each species, it was established that over the dosage range used, dichlorvos had a clear superiority over pyrethrum. If tainting and residual tests on cocoa beans to be carried out in future prove favourable, it will be profitable for the Infestation Control Unit of the Ghana Cocoa Marketing Board to switch from pyrethrum to dichlorvos for the treatment of cocoaCACAOTRIBOLIUM CASTANEUMLASIODERMA SERRICORNESITOPHILUS ORIZAEPLAGAS DE PRODUCTOS ALMACENADOSCONTROL DE PLAGASPIRETRINASINSECTICIDASCONTROL QUIMICOALMENDRASEPHESTIA CAUTELLA |
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CACAO TRIBOLIUM CASTANEUM LASIODERMA SERRICORNE SITOPHILUS ORIZAE PLAGAS DE PRODUCTOS ALMACENADOS CONTROL DE PLAGAS PIRETRINAS INSECTICIDAS CONTROL QUIMICO ALMENDRAS EPHESTIA CAUTELLA CACAO TRIBOLIUM CASTANEUM LASIODERMA SERRICORNE SITOPHILUS ORIZAE PLAGAS DE PRODUCTOS ALMACENADOS CONTROL DE PLAGAS PIRETRINAS INSECTICIDAS CONTROL QUIMICO ALMENDRAS EPHESTIA CAUTELLA |
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CACAO TRIBOLIUM CASTANEUM LASIODERMA SERRICORNE SITOPHILUS ORIZAE PLAGAS DE PRODUCTOS ALMACENADOS CONTROL DE PLAGAS PIRETRINAS INSECTICIDAS CONTROL QUIMICO ALMENDRAS EPHESTIA CAUTELLA CACAO TRIBOLIUM CASTANEUM LASIODERMA SERRICORNE SITOPHILUS ORIZAE PLAGAS DE PRODUCTOS ALMACENADOS CONTROL DE PLAGAS PIRETRINAS INSECTICIDAS CONTROL QUIMICO ALMENDRAS EPHESTIA CAUTELLA 83228 Kisiedu, E.W. 5331 Cocoa Research Institute, Tafo (Ghana) 33021 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 A comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beans |
description |
Four storage pests; Tribolium castaneum (Herbst.), Lasioderma serricorne (Fab.), Sitophilus oryzae (L.) and Cadra cautella (Walker), were exposed in empty cocoa sheds to dichlorvos and pyrethrum fogs at doses ranging from 0.025-0.8 per cent, applied at the rate of one litre/20,000 ft3 (142 m3). Responses of each species to the two insecticides were compared. Although it was not possible to estimate ratios of potencies of the two insecticides for each species, it was established that over the dosage range used, dichlorvos had a clear superiority over pyrethrum. If tainting and residual tests on cocoa beans to be carried out in future prove favourable, it will be profitable for the Infestation Control Unit of the Ghana Cocoa Marketing Board to switch from pyrethrum to dichlorvos for the treatment of cocoa |
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CACAO TRIBOLIUM CASTANEUM LASIODERMA SERRICORNE SITOPHILUS ORIZAE PLAGAS DE PRODUCTOS ALMACENADOS CONTROL DE PLAGAS PIRETRINAS INSECTICIDAS CONTROL QUIMICO ALMENDRAS EPHESTIA CAUTELLA |
author |
83228 Kisiedu, E.W. 5331 Cocoa Research Institute, Tafo (Ghana) 33021 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 |
author_facet |
83228 Kisiedu, E.W. 5331 Cocoa Research Institute, Tafo (Ghana) 33021 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 |
author_sort |
83228 Kisiedu, E.W. |
title |
A comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beans |
title_short |
A comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beans |
title_full |
A comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beans |
title_fullStr |
A comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beans |
title_full_unstemmed |
A comparison of Dichlorvos and Pirethrum fogs against some storage pests on cocoa beans |
title_sort |
comparison of dichlorvos and pirethrum fogs against some storage pests on cocoa beans |
publisher |
Tafo (Ghana) |
publishDate |
1971 |
work_keys_str_mv |
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