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Items where Author is "Walker, D.J."

Items where Author is "Walker, D.J."

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Number of items: 22.

botanical insecticides

Ogendo, J.O., Belmain, S.R. ORCID: 0000-0002-5590-7545 , Deng, A.L. and Walker, D.J. (2003) Comparison of toxic and repellent effects of Lantana camara L. with Tephrosia vogelii hook and a synthetic pesticide against Sitophilus zeamais motschulsky (Coleoptera: Curculionidae) in stored maize grain. International Journal of Tropical Insect Science, 23 (02). pp. 127-135. ISSN 1742-7584 (doi:https://doi.org/10.1017/S1742758400020348)

Brong-Ahafo

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

cowpea

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

cowpea seed

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

Ghana

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

grain storage

Ogendo, J.O., Belmain, S.R. ORCID: 0000-0002-5590-7545 , Deng, A.L. and Walker, D.J. (2003) Comparison of toxic and repellent effects of Lantana camara L. with Tephrosia vogelii hook and a synthetic pesticide against Sitophilus zeamais motschulsky (Coleoptera: Curculionidae) in stored maize grain. International Journal of Tropical Insect Science, 23 (02). pp. 127-135. ISSN 1742-7584 (doi:https://doi.org/10.1017/S1742758400020348)

groundnut

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

maize

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

millet

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

seed management

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

seed quality

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

seed systems

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

small-scale farmer

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

sorghum

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

stored product protection

Ogendo, J.O., Belmain, S.R. ORCID: 0000-0002-5590-7545 , Deng, A.L. and Walker, D.J. (2003) Comparison of toxic and repellent effects of Lantana camara L. with Tephrosia vogelii hook and a synthetic pesticide against Sitophilus zeamais motschulsky (Coleoptera: Curculionidae) in stored maize grain. International Journal of Tropical Insect Science, 23 (02). pp. 127-135. ISSN 1742-7584 (doi:https://doi.org/10.1017/S1742758400020348)

Volta

Tripp, R., Walker, D.J., Opoku-Apau, A., Dankyi, A.A. and Delimini, L.L. (1998) Seed management by small-scale farmers in Ghana. A study of maize and cowpea seed in the Brong-Ahafo and Volta regions (NRI Bulletin 68). [Working Paper]

Zambia

Tripp, R., Walker, D.J., Miti, F., Mukumbuta, S. and Zulu, M.S. (1998) Seed management by small-scale farmers in Zambia. A study of cowpea, groundnut and sorghum seed in the Southern and Western Provinces (NRI Bulletin 76). [Working Paper]

Zea mays

Ogendo, J.O., Belmain, S.R. ORCID: 0000-0002-5590-7545 , Deng, A.L. and Walker, D.J. (2003) Comparison of toxic and repellent effects of Lantana camara L. with Tephrosia vogelii hook and a synthetic pesticide against Sitophilus zeamais motschulsky (Coleoptera: Curculionidae) in stored maize grain. International Journal of Tropical Insect Science, 23 (02). pp. 127-135. ISSN 1742-7584 (doi:https://doi.org/10.1017/S1742758400020348)

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