Nematicide Evaluation for the Control of the Nematodes of Yam (Dioscorea rotundata Poir)

Abstract

Three field experiments were conducted for the evaluation of non-volatile granular nematicides in yam (Dioscorea rotundata Poir). Nematicides were applied over the furrow at planting or both at planting and post-planting. Aldicarb was more effective controlling nematodes and increasing yields of high quality tubers than carbofuran and fensulfothion. The absence of significant differences between single and split applications of the same nematicide indicates that postplanting treatments are not necessary. The results substantiate the importance of controlling nematodes in yam production.