Items where Author is "Walker, D.J."
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Up a levelbotanical insecticides
Ogendo, J.O., Belmain, S.R. 
ORCID: https://orcid.org/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: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: https://orcid.org/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: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: https://orcid.org/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: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: https://orcid.org/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:10.1017/S1742758400020348)