The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama
Frosty pod rot (FPR), caused by Moniliophthora roreri, and black pod (BP), caused by Phytophthora spp., of cocoa (Theobroma cacao) cause combined pod losses of more than 80% in Panama. Biological control of both diseases appeared promising in Peru and is desired by certiWed organic producers in Panama. We evaluated both local and Peruvian fungal antagonists in participatory trials on smallholdings during two complete production cycles. Furthermore, we tested the inXuence of a 3% v/v cane molasses amendment on biocontrol eYcacy, yield and population dynamics of mycoparasites on the cocoa pod. SigniWcant variation was observed between the two years: FPR was more severe in the Wrst year, BP in the second. FPR was signiWcantly reduced by biocontrol agents (BCAs), but not by the molasses amendment. However, BCAs responded diVerently to molasses in both years. All BCAs reduced inoculum production by M. roreri with no consistent eVect of molasses. BCAs had a lesser and more variable eVect on BP, whereas molasses reduced BP slightly by increasing the eYcacy of native antagonists. All BCAs and the molasses amendment enhanced the percentage of healthy pods. Molasses was beneWcial to absolute yield, but only one inoculum improved yield signiWcantly in the Wrst year. Populations of a Peruvian Trichoderma asperellum isolate remained high for over two months after application to surface-sterilized pods. Molasses had no eVect on establishment or survival of this antagonist or recolonization by any native mycoparasite. The reasons for enhanced biocontrol eYcacy of the molasses formulation requires further investigation.
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dig-cirad-fr-5610332024-01-28T19:28:54Z http://agritrop.cirad.fr/561033/ http://agritrop.cirad.fr/561033/ The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama. Krauss Ulrike, Ten Hoopen Gerben Martijn, Hidalgo Eduardo, Martinez Adolfo, Stirrup Tim, Arroyo Claudio, Garcia Johnny, Palacios Manuel. 2006. Biological Control, 39 (2) : 232-239.https://doi.org/10.1016/j.biocontrol.2006.06.005 <https://doi.org/10.1016/j.biocontrol.2006.06.005> The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama Krauss, Ulrike Ten Hoopen, Gerben Martijn Hidalgo, Eduardo Martinez, Adolfo Stirrup, Tim Arroyo, Claudio Garcia, Johnny Palacios, Manuel eng 2006 Biological Control H20 - Maladies des plantes F04 - Fertilisation Theobroma cacao Moniliophthora Phytophthora pourriture contrôle de maladies lutte biologique pratique culturale amendement du sol agent de lutte biologique Trichoderma mélasse canne à sucre http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_31727 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_6667 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_918 http://aims.fao.org/aos/agrovoc/c_2018 http://aims.fao.org/aos/agrovoc/c_7159 http://aims.fao.org/aos/agrovoc/c_920 http://aims.fao.org/aos/agrovoc/c_15814 http://aims.fao.org/aos/agrovoc/c_4889 http://aims.fao.org/aos/agrovoc/c_7501 Panama http://aims.fao.org/aos/agrovoc/c_5524 Frosty pod rot (FPR), caused by Moniliophthora roreri, and black pod (BP), caused by Phytophthora spp., of cocoa (Theobroma cacao) cause combined pod losses of more than 80% in Panama. Biological control of both diseases appeared promising in Peru and is desired by certiWed organic producers in Panama. We evaluated both local and Peruvian fungal antagonists in participatory trials on smallholdings during two complete production cycles. Furthermore, we tested the inXuence of a 3% v/v cane molasses amendment on biocontrol eYcacy, yield and population dynamics of mycoparasites on the cocoa pod. SigniWcant variation was observed between the two years: FPR was more severe in the Wrst year, BP in the second. FPR was signiWcantly reduced by biocontrol agents (BCAs), but not by the molasses amendment. However, BCAs responded diVerently to molasses in both years. All BCAs reduced inoculum production by M. roreri with no consistent eVect of molasses. BCAs had a lesser and more variable eVect on BP, whereas molasses reduced BP slightly by increasing the eYcacy of native antagonists. All BCAs and the molasses amendment enhanced the percentage of healthy pods. Molasses was beneWcial to absolute yield, but only one inoculum improved yield signiWcantly in the Wrst year. Populations of a Peruvian Trichoderma asperellum isolate remained high for over two months after application to surface-sterilized pods. Molasses had no eVect on establishment or survival of this antagonist or recolonization by any native mycoparasite. The reasons for enhanced biocontrol eYcacy of the molasses formulation requires further investigation. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/561033/1/document_561033.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.biocontrol.2006.06.005 10.1016/j.biocontrol.2006.06.005 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biocontrol.2006.06.005 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.biocontrol.2006.06.005 |
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H20 - Maladies des plantes F04 - Fertilisation Theobroma cacao Moniliophthora Phytophthora pourriture contrôle de maladies lutte biologique pratique culturale amendement du sol agent de lutte biologique Trichoderma mélasse canne à sucre http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_31727 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_6667 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_918 http://aims.fao.org/aos/agrovoc/c_2018 http://aims.fao.org/aos/agrovoc/c_7159 http://aims.fao.org/aos/agrovoc/c_920 http://aims.fao.org/aos/agrovoc/c_15814 http://aims.fao.org/aos/agrovoc/c_4889 http://aims.fao.org/aos/agrovoc/c_7501 http://aims.fao.org/aos/agrovoc/c_5524 H20 - Maladies des plantes F04 - Fertilisation Theobroma cacao Moniliophthora Phytophthora pourriture contrôle de maladies lutte biologique pratique culturale amendement du sol agent de lutte biologique Trichoderma mélasse canne à sucre http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_31727 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_6667 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_918 http://aims.fao.org/aos/agrovoc/c_2018 http://aims.fao.org/aos/agrovoc/c_7159 http://aims.fao.org/aos/agrovoc/c_920 http://aims.fao.org/aos/agrovoc/c_15814 http://aims.fao.org/aos/agrovoc/c_4889 http://aims.fao.org/aos/agrovoc/c_7501 http://aims.fao.org/aos/agrovoc/c_5524 |
spellingShingle |
H20 - Maladies des plantes F04 - Fertilisation Theobroma cacao Moniliophthora Phytophthora pourriture contrôle de maladies lutte biologique pratique culturale amendement du sol agent de lutte biologique Trichoderma mélasse canne à sucre http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_31727 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_6667 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_918 http://aims.fao.org/aos/agrovoc/c_2018 http://aims.fao.org/aos/agrovoc/c_7159 http://aims.fao.org/aos/agrovoc/c_920 http://aims.fao.org/aos/agrovoc/c_15814 http://aims.fao.org/aos/agrovoc/c_4889 http://aims.fao.org/aos/agrovoc/c_7501 http://aims.fao.org/aos/agrovoc/c_5524 H20 - Maladies des plantes F04 - Fertilisation Theobroma cacao Moniliophthora Phytophthora pourriture contrôle de maladies lutte biologique pratique culturale amendement du sol agent de lutte biologique Trichoderma mélasse canne à sucre http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_31727 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_6667 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_918 http://aims.fao.org/aos/agrovoc/c_2018 http://aims.fao.org/aos/agrovoc/c_7159 http://aims.fao.org/aos/agrovoc/c_920 http://aims.fao.org/aos/agrovoc/c_15814 http://aims.fao.org/aos/agrovoc/c_4889 http://aims.fao.org/aos/agrovoc/c_7501 http://aims.fao.org/aos/agrovoc/c_5524 Krauss, Ulrike Ten Hoopen, Gerben Martijn Hidalgo, Eduardo Martinez, Adolfo Stirrup, Tim Arroyo, Claudio Garcia, Johnny Palacios, Manuel The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama |
description |
Frosty pod rot (FPR), caused by Moniliophthora roreri, and black pod (BP), caused by Phytophthora spp., of cocoa (Theobroma cacao) cause combined pod losses of more than 80% in Panama. Biological control of both diseases appeared promising in Peru and is desired by certiWed organic producers in Panama. We evaluated both local and Peruvian fungal antagonists in participatory trials on smallholdings during two complete production cycles. Furthermore, we tested the inXuence of a 3% v/v cane molasses amendment on biocontrol eYcacy, yield and population dynamics of mycoparasites on the cocoa pod. SigniWcant variation was observed between the two years: FPR was more severe in the Wrst year, BP in the second. FPR was signiWcantly reduced by biocontrol agents (BCAs), but not by the molasses amendment. However, BCAs responded diVerently to molasses in both years. All BCAs reduced inoculum production by M. roreri with no consistent eVect of molasses. BCAs had a lesser and more variable eVect on BP, whereas molasses reduced BP slightly by increasing the eYcacy of native antagonists. All BCAs and the molasses amendment enhanced the percentage of healthy pods. Molasses was beneWcial to absolute yield, but only one inoculum improved yield signiWcantly in the Wrst year. Populations of a Peruvian Trichoderma asperellum isolate remained high for over two months after application to surface-sterilized pods. Molasses had no eVect on establishment or survival of this antagonist or recolonization by any native mycoparasite. The reasons for enhanced biocontrol eYcacy of the molasses formulation requires further investigation. |
format |
article |
topic_facet |
H20 - Maladies des plantes F04 - Fertilisation Theobroma cacao Moniliophthora Phytophthora pourriture contrôle de maladies lutte biologique pratique culturale amendement du sol agent de lutte biologique Trichoderma mélasse canne à sucre http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_31727 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_6667 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_918 http://aims.fao.org/aos/agrovoc/c_2018 http://aims.fao.org/aos/agrovoc/c_7159 http://aims.fao.org/aos/agrovoc/c_920 http://aims.fao.org/aos/agrovoc/c_15814 http://aims.fao.org/aos/agrovoc/c_4889 http://aims.fao.org/aos/agrovoc/c_7501 http://aims.fao.org/aos/agrovoc/c_5524 |
author |
Krauss, Ulrike Ten Hoopen, Gerben Martijn Hidalgo, Eduardo Martinez, Adolfo Stirrup, Tim Arroyo, Claudio Garcia, Johnny Palacios, Manuel |
author_facet |
Krauss, Ulrike Ten Hoopen, Gerben Martijn Hidalgo, Eduardo Martinez, Adolfo Stirrup, Tim Arroyo, Claudio Garcia, Johnny Palacios, Manuel |
author_sort |
Krauss, Ulrike |
title |
The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama |
title_short |
The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama |
title_full |
The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama |
title_fullStr |
The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama |
title_full_unstemmed |
The effect of cane molasses amendment on biocontrol of frosty pod rot (Moniliophthora roreri) and black pod (Phytophthora spp.) of cocoa (Theobroma cacao) in Panama |
title_sort |
effect of cane molasses amendment on biocontrol of frosty pod rot (moniliophthora roreri) and black pod (phytophthora spp.) of cocoa (theobroma cacao) in panama |
url |
http://agritrop.cirad.fr/561033/ http://agritrop.cirad.fr/561033/1/document_561033.pdf |
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