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Nine Nigerian populations of Scutellonema bradys, obtained from infected yam (Dioscorea spp.), were assessed following inoculation onto susceptible yam (Dioscorea rotundata) cv. TDr131 in pot and field experiments in Nigeria between 2002 and 2004. In addition, geographically separated populations...


Coyne, D.L.Williamson, V.Tchabi, A.Baimey, H.Rotifa, I.[Comparison of pathogenicity of geographically separate populations of Scutelllonema bradys on yam (Dioscorea spp.) in West Africa]Comparison of pathogenicity of geographically separate populations of Scutelllonema bradys on yam (Dioscorea spp.) in West Africa

Describes the seasonal pattern of nematode faecal egg counts of sheep slaughtered at the Addis Ababa abattoir from July 1985 to June 1986. Presents data on strongyle and trichostrongyle faecal egg counts. Suggests possible strategic measures for th econtrol of gastrointestinal nematodes of sheep ...


Bekele, T.Mukasa-Mugerwa, E.Scholtens, R.G.[Seasonal changes in nematode faecal egg counts of sheep in Ethiopia]Seasonal changes in nematode faecal egg counts of sheep in Ethiopia

Over 150 bean (Phaseolus vulgaris) pure lines and accessions were evaluated in growth chamber and greenhouse trials for reactions to one or more populations of root-knot nematodes (Meloidogyne spp.) collected from Colombia or the United States. Bean pure lines and accessions were evaluated for ro...


Mullin, BAAbawi, G.S.Pastor Corrales, Marcial A.Kornegay, Julia L.[Reactions of selected bean pure lines and accessions to Meloidogyne species]Reactions of selected bean pure lines and accessions to Meloidogyne species

A survey of root-knot nematodes associated with bean (Phaseolus vulgaris) roots and soils in the major bean production regions of Colombia and Peru was conducted during 1988 1989. Over 150 samples were processed for these parasites, and specimens from more than 100 of the collections were identif...


Mullin, BAAbawi, G.S.Pastor Corrales, Marcial A.Kornegay, Julia L.[Root-knot nematodes associated with beans in Colombia and Peru and related yield loss]Root-knot nematodes associated with beans in Colombia and Peru and related yield loss

Root-knot nematodes (Meloidogyne spp.) are a particularly damaging group of pests on a wide range of crops and the predominant plant-parasitic nematode occurring on cassava (Manihot esculenta). Screening for resistance against these nematodes would be prudent to minimize yield loss and the high c...


Coyne, D.L.Kagoda, A.Mbiru, E.[Rapid screening technique for assessing resistance to Meloidogyne spp. in cassava]Rapid screening technique for assessing resistance to Meloidogyne spp. in cassava
Abawi, G.S.Pastor Corrales, Marcial A.[Root rots of beans in Latin America and Africa: diagnosis, research methodologies, and management strategies]Root rots of beans in Latin America and Africa: diagnosis, research methodologies, and management strategies

The asexual root-knot nematodes (RKNs) (Meloidogyne spp.) exemplified by Meloidogyne incognita are widespread and damaging pests in tropical and subtropical regions worldwide. Comparison of amplification products of two adjacent polymorphic regions of the mitochondrial genome using DNA extracts o...


Pagan, C.Coyne, D.L.Carneiro, R.Kariuki, G.Luambana, N.Affokpon, A.Williamson, V.M.[Mitochondrial haplotypebased identification of ethanolpreserved rootknot nematodes from Africa]Mitochondrial haplotypebased identification of ethanolpreserved rootknot nematodes from Africa

Plant parasitic nematodes impose a severe constraint on plantain and banana productivity; however, the sterile nature of many cultivars precludes conventional breeding for resistance. Transgenic plantain cv. Gonja manjaya (Musa AAB) plants, expressing a maize cystatin that inhibits nematode diges...


Roderick, H.Tripathi, L.Babirye, A.Wang, D.Tripathi, J.N.Urwin, P.E.Atkinson, H.J.[Generation of transgenic plantain (Musa spp.) with resistance to plant pathogenic nematodes]Generation of transgenic plantain (Musa spp.) with resistance to plant pathogenic nematodes

This Report compares the efficacies of three anthelmintics, each belonging to one of the broad spectrum groups. It also identifies the genera of resistant worms through larval culture. The study was conducted on a commercial farm where anthelmintics had been used intensively. The results show cle...


Mwamachi, D.M.Audho, James O.Magadi, M.Reynolds, L.Baker, R.L.[Evidence for multiple anthelmintic resistance of gastrointestinal nematodes in sheep in coastal Kenya]Evidence for multiple anthelmintic resistance of gastrointestinal nematodes in sheep in coastal Kenya

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