American Journal of Experimental Agriculture, Jan 10, 2016
A survey was conducted among okra farmers in two agro-ecologies (forest guinea savanna transition... more A survey was conducted among okra farmers in two agro-ecologies (forest guinea savanna transition and moist semi-deciduous forest) of Ghana between August and December 2014, to assess their production decisions and awareness of the Meloidogyne species infection menace in okra. There were 240 respondents and more males (58%) than females (42%). Thirty nine percent (39%) of the farmers had no formal education and 48% had basic education. Approximately 56% had been cultivating okra for up to 10 years. Sixty four percent (64%) did not treat their okra seeds before sowing. Eighty five percent (85%) cultivated okra on commercial scale level (>3 acres). About 65% practiced sole cropping. Whilst 45, 79, 15 and 47% of the farmers responded positively to the Meloidogyne species infection awareness in okra in the Atwima Nwabiagya, Wenchi, Atebubu Amantin and Kintampo North Districts respectively, none was aware of the infection in the Ejura Sekyedumasi and Offinso North Districts. All, 61, 88, 86, 95 and 72% of the farmers in the Ejura Sekyedumasi, Kintampo North, Atebubu Amantin, Wenchi, Offinso North and Atwima Nwabiagya Districts respectively did not manage the infection. This was first survey study in
A survey of plantain farms was conducted in April 2012 at four locations in two districts of Ghan... more A survey of plantain farms was conducted in April 2012 at four locations in two districts of Ghana. The purpose was to identify plant parasitic nematodes (PPN) associated with plantain production in Ghana. The locations were Adomakokrom and Kenyasi in the Brong Ahafo, Adanwomase and Mpobi in the Ashanti region. Demographic and sociological data of farmers, plantain root lesion scores, PPN populations per 200 cm3 soil and 5 g plantain roots were analyzed. Nematode damage to root at Adomakokrom, Adanwomase, Mpobi and Kenyasi were 50, 75, 75 and 50%, respectively. Five nematode species were recovered from the rhizosphere of plantain. The nematodes were in the order of importance; Pratylenchus coffeae, Meloidogyne spp., Rotylenchulus reniformis, Radopholus similis and Helicotylenchus multicintus. High populations of P. coffeae (803/200 cm3), H. multicintus (292/200 cm3) and R. reniformis (343/200 cm3) were extracted from soil samples at Adomakokrom, Adanwomase and Adanwomase respectivel...
... Appianimaa Abrokwa and Mr Emmanuel Owusu Kyere of the Molecular and ... knot nematodes at Afa... more ... Appianimaa Abrokwa and Mr Emmanuel Owusu Kyere of the Molecular and ... knot nematodes at Afari in the Atwima Nwabiagya district of Ashanti region of Ghana. A ... The root-knot nematodes are the most economically important (Williams-Woodward and Davis, 2001). ...
Root-knot nematode (Meloidogyne incognita) is an economically important phytoparasitic nematode s... more Root-knot nematode (Meloidogyne incognita) is an economically important phytoparasitic nematode species. In yam production, therefore, breeding for nematode resistance is an important environmentally friendly tool to manage root-knot nematodes damage. The aim of this study was to determine the reaction of 18 yam accessions to M. incognita inoculation under screen house conditions using single node vine cuttings. Vines of each accession were planted in sterilized soil and inoculated with 1000 infective juveniles of M. incognita. Resistance level of yam accessions were based on both galling index score and reproductive factor. There were a significant differences in final infective stage nematodes population, galling index, reproduction factor and yield of mini tuber among the accessions tested. Sixteen (89 %) of the accessions showed moderate resistance (GI ≥ 2, Rf ≤ 1) to the test pathogen with two accessions classified as susceptible. Accession TDr1515OP16/0030 recorded the highest...
Current and Emerging Challenges in the Diseases of Trees [Working Title]
Mango is one of the frequently cultivated seasonal fruit crops in several tropical and subtropica... more Mango is one of the frequently cultivated seasonal fruit crops in several tropical and subtropical regions. It is consumed as whole fruits apart from serving as raw materials for most industries that are into mineral production. Mango production is, however, constrained by diseases, pests, and poor post-harvest handling of fruits. Anthracnose disease, caused by Colletotrichum gloeosporioides Penz and Sacc, is one of the most important yields limiting constraint in mango production across the globe. The disease occurs in both the field and post-harvesting. In the field, it affects aboveground parts, such as the stem, branches, leaves, flowers, and fruits. Anthracnose disease reduces the shelve life and marketability of mango fruit. In Ghana, anthracnose disease is responsible for about 30% yield/fruit loss. Most farmers do not control it, although some have resorted to the application of various fungicides not registered for mango anthracnose disease management in Ghana. This chapter...
Fall armyworm infestation poses a serious threat to the food security and livelihoods of smallhol... more Fall armyworm infestation poses a serious threat to the food security and livelihoods of smallholder maize farmers in Ghana. The most sustainable management approach is Integrated Pest Management. Entomopathogenic nematodes have the potential for inclusion in IPM to manage crop insect pests. The study aimed at finding a sustainable option to manage fall armyworms in maize. Maize plant rhizosphere soils were sampled from maize farms in 2019 for entomopathogenic nematodes. On an acre maize farm, 10 core soil samples were collected using soil augur at <20 cm soil depth and composited weighing 0.5 kg. Each composite soil sample was supplied with five 5 instar stage fall armyworm larvae and incubated (25°C; 85% RH) in a dark room. After 4 days, the fall armyworm larvae cadavers were removed from the soil for culturing and collection of infective entomopathogenic nematodes using modified White traps. A partitioned plant house accommodated each of three treatments: (T1) Supa ataka (Emam...
The potentials of organic soil amendments (OSA) to control plant parasitic nematodes (PPN) infect... more The potentials of organic soil amendments (OSA) to control plant parasitic nematodes (PPN) infection in yam production were evaluated in Ghana. The ability of organic soil amendments; neem (Azadirachta indica A. Juss) seed powder, cocoa (Theobroma cacao L.) bean testa powder and cowitch (Mucuna pruriens L.) seed powder to suppress PPN in yam were compared to Fulan (a synthetic pesticide) and a non-treated control. The organic soil amendments suppressed Pratylenchus and Rotylenchulus soil population densities compared to the control. M. pruriens also reduced soil populations of Meloidogyne and Scutellonema with reductions similar to nematicide application. Only M. pruriens reduced population densities of plant parasitic nematodes in yam tubers compared to the control. There were no differences in yield. Mucuna pruriens treated plots yielded 32.1 t/ha while the control yielded 17.4 t/ha. In terms of relative yield, M. pruriens treated plots were 1.84 times higher than the control. The...
International Journal of Sciences: Basic and Applied Research, 2017
Root knot nematodes represent important pathogens affecting global crop production due to their w... more Root knot nematodes represent important pathogens affecting global crop production due to their wide host range. The attack of root knot nematode on various vegetable crops leads to delayed maturity, reduced yields and quality of crop produce, high costs of production and therefore loss of income. However, their damage in most cases is overlooked and goes unnoticed by majority of farmers because the damage presents symptoms of drought and nutrient stress conditions. The limited knowledge among farmers about the problems associated with root knot nematodes and the inadequate management measures for curtailing the menace presents a major hindrance for vegetable crops protection. Management strategies should be applied in line with integrated pest management (IPM) practices to enhance adoption by farmers. Also, vegetable producers should be educated on the effects of root-knot nematodes.
Osei, K, E. Otoo, Y, Danso, J. Adomako, A. Agyeman and J. S. Asante. 2013 Organic soil amendments... more Osei, K, E. Otoo, Y, Danso, J. Adomako, A. Agyeman and J. S. Asante. 2013 Organic soil amendments in nematode management in yam production. Nematropica 43:78-82. The potentials of organic soil amendments (OSA) to control plant parasitic nematodes (PPN) infection in yam production were evaluated in Ghana. The ability of organic soil amendments; neem (Azadirachta indica A. Juss) seed powder, cocoa (Theobroma cacao L.) bean testa powder and cowitch (Mucuna pruriens L.) seed powder to suppress PPN in yam were compared to Fulan (a synthetic pesticide) and a non-treated control. The organic soil amendments suppressed Pratylenchus and Rotylenchulus soil population densities compared to the control. M. pruriens also reduced soil populations of Meloidogyne and Scutellonema with reductions similar to nematicide application. Only M. pruriens reduced population densities of plant parasitic nematodes in yam tubers compared to the control. There were no differences in yield. Mucuna pruriens treat...
American Journal of Experimental Agriculture, Jan 10, 2016
A survey was conducted among okra farmers in two agro-ecologies (forest guinea savanna transition... more A survey was conducted among okra farmers in two agro-ecologies (forest guinea savanna transition and moist semi-deciduous forest) of Ghana between August and December 2014, to assess their production decisions and awareness of the Meloidogyne species infection menace in okra. There were 240 respondents and more males (58%) than females (42%). Thirty nine percent (39%) of the farmers had no formal education and 48% had basic education. Approximately 56% had been cultivating okra for up to 10 years. Sixty four percent (64%) did not treat their okra seeds before sowing. Eighty five percent (85%) cultivated okra on commercial scale level (>3 acres). About 65% practiced sole cropping. Whilst 45, 79, 15 and 47% of the farmers responded positively to the Meloidogyne species infection awareness in okra in the Atwima Nwabiagya, Wenchi, Atebubu Amantin and Kintampo North Districts respectively, none was aware of the infection in the Ejura Sekyedumasi and Offinso North Districts. All, 61, 88, 86, 95 and 72% of the farmers in the Ejura Sekyedumasi, Kintampo North, Atebubu Amantin, Wenchi, Offinso North and Atwima Nwabiagya Districts respectively did not manage the infection. This was first survey study in
A survey of plantain farms was conducted in April 2012 at four locations in two districts of Ghan... more A survey of plantain farms was conducted in April 2012 at four locations in two districts of Ghana. The purpose was to identify plant parasitic nematodes (PPN) associated with plantain production in Ghana. The locations were Adomakokrom and Kenyasi in the Brong Ahafo, Adanwomase and Mpobi in the Ashanti region. Demographic and sociological data of farmers, plantain root lesion scores, PPN populations per 200 cm3 soil and 5 g plantain roots were analyzed. Nematode damage to root at Adomakokrom, Adanwomase, Mpobi and Kenyasi were 50, 75, 75 and 50%, respectively. Five nematode species were recovered from the rhizosphere of plantain. The nematodes were in the order of importance; Pratylenchus coffeae, Meloidogyne spp., Rotylenchulus reniformis, Radopholus similis and Helicotylenchus multicintus. High populations of P. coffeae (803/200 cm3), H. multicintus (292/200 cm3) and R. reniformis (343/200 cm3) were extracted from soil samples at Adomakokrom, Adanwomase and Adanwomase respectivel...
... Appianimaa Abrokwa and Mr Emmanuel Owusu Kyere of the Molecular and ... knot nematodes at Afa... more ... Appianimaa Abrokwa and Mr Emmanuel Owusu Kyere of the Molecular and ... knot nematodes at Afari in the Atwima Nwabiagya district of Ashanti region of Ghana. A ... The root-knot nematodes are the most economically important (Williams-Woodward and Davis, 2001). ...
Root-knot nematode (Meloidogyne incognita) is an economically important phytoparasitic nematode s... more Root-knot nematode (Meloidogyne incognita) is an economically important phytoparasitic nematode species. In yam production, therefore, breeding for nematode resistance is an important environmentally friendly tool to manage root-knot nematodes damage. The aim of this study was to determine the reaction of 18 yam accessions to M. incognita inoculation under screen house conditions using single node vine cuttings. Vines of each accession were planted in sterilized soil and inoculated with 1000 infective juveniles of M. incognita. Resistance level of yam accessions were based on both galling index score and reproductive factor. There were a significant differences in final infective stage nematodes population, galling index, reproduction factor and yield of mini tuber among the accessions tested. Sixteen (89 %) of the accessions showed moderate resistance (GI ≥ 2, Rf ≤ 1) to the test pathogen with two accessions classified as susceptible. Accession TDr1515OP16/0030 recorded the highest...
Current and Emerging Challenges in the Diseases of Trees [Working Title]
Mango is one of the frequently cultivated seasonal fruit crops in several tropical and subtropica... more Mango is one of the frequently cultivated seasonal fruit crops in several tropical and subtropical regions. It is consumed as whole fruits apart from serving as raw materials for most industries that are into mineral production. Mango production is, however, constrained by diseases, pests, and poor post-harvest handling of fruits. Anthracnose disease, caused by Colletotrichum gloeosporioides Penz and Sacc, is one of the most important yields limiting constraint in mango production across the globe. The disease occurs in both the field and post-harvesting. In the field, it affects aboveground parts, such as the stem, branches, leaves, flowers, and fruits. Anthracnose disease reduces the shelve life and marketability of mango fruit. In Ghana, anthracnose disease is responsible for about 30% yield/fruit loss. Most farmers do not control it, although some have resorted to the application of various fungicides not registered for mango anthracnose disease management in Ghana. This chapter...
Fall armyworm infestation poses a serious threat to the food security and livelihoods of smallhol... more Fall armyworm infestation poses a serious threat to the food security and livelihoods of smallholder maize farmers in Ghana. The most sustainable management approach is Integrated Pest Management. Entomopathogenic nematodes have the potential for inclusion in IPM to manage crop insect pests. The study aimed at finding a sustainable option to manage fall armyworms in maize. Maize plant rhizosphere soils were sampled from maize farms in 2019 for entomopathogenic nematodes. On an acre maize farm, 10 core soil samples were collected using soil augur at <20 cm soil depth and composited weighing 0.5 kg. Each composite soil sample was supplied with five 5 instar stage fall armyworm larvae and incubated (25°C; 85% RH) in a dark room. After 4 days, the fall armyworm larvae cadavers were removed from the soil for culturing and collection of infective entomopathogenic nematodes using modified White traps. A partitioned plant house accommodated each of three treatments: (T1) Supa ataka (Emam...
The potentials of organic soil amendments (OSA) to control plant parasitic nematodes (PPN) infect... more The potentials of organic soil amendments (OSA) to control plant parasitic nematodes (PPN) infection in yam production were evaluated in Ghana. The ability of organic soil amendments; neem (Azadirachta indica A. Juss) seed powder, cocoa (Theobroma cacao L.) bean testa powder and cowitch (Mucuna pruriens L.) seed powder to suppress PPN in yam were compared to Fulan (a synthetic pesticide) and a non-treated control. The organic soil amendments suppressed Pratylenchus and Rotylenchulus soil population densities compared to the control. M. pruriens also reduced soil populations of Meloidogyne and Scutellonema with reductions similar to nematicide application. Only M. pruriens reduced population densities of plant parasitic nematodes in yam tubers compared to the control. There were no differences in yield. Mucuna pruriens treated plots yielded 32.1 t/ha while the control yielded 17.4 t/ha. In terms of relative yield, M. pruriens treated plots were 1.84 times higher than the control. The...
International Journal of Sciences: Basic and Applied Research, 2017
Root knot nematodes represent important pathogens affecting global crop production due to their w... more Root knot nematodes represent important pathogens affecting global crop production due to their wide host range. The attack of root knot nematode on various vegetable crops leads to delayed maturity, reduced yields and quality of crop produce, high costs of production and therefore loss of income. However, their damage in most cases is overlooked and goes unnoticed by majority of farmers because the damage presents symptoms of drought and nutrient stress conditions. The limited knowledge among farmers about the problems associated with root knot nematodes and the inadequate management measures for curtailing the menace presents a major hindrance for vegetable crops protection. Management strategies should be applied in line with integrated pest management (IPM) practices to enhance adoption by farmers. Also, vegetable producers should be educated on the effects of root-knot nematodes.
Osei, K, E. Otoo, Y, Danso, J. Adomako, A. Agyeman and J. S. Asante. 2013 Organic soil amendments... more Osei, K, E. Otoo, Y, Danso, J. Adomako, A. Agyeman and J. S. Asante. 2013 Organic soil amendments in nematode management in yam production. Nematropica 43:78-82. The potentials of organic soil amendments (OSA) to control plant parasitic nematodes (PPN) infection in yam production were evaluated in Ghana. The ability of organic soil amendments; neem (Azadirachta indica A. Juss) seed powder, cocoa (Theobroma cacao L.) bean testa powder and cowitch (Mucuna pruriens L.) seed powder to suppress PPN in yam were compared to Fulan (a synthetic pesticide) and a non-treated control. The organic soil amendments suppressed Pratylenchus and Rotylenchulus soil population densities compared to the control. M. pruriens also reduced soil populations of Meloidogyne and Scutellonema with reductions similar to nematicide application. Only M. pruriens reduced population densities of plant parasitic nematodes in yam tubers compared to the control. There were no differences in yield. Mucuna pruriens treat...
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