Introduction: an overview of the impacts of invasive insect species on agriculture.

Niassy, S., Ekesi, S., Migiro, L., Otieno, W., (2020). Sustainable management of invasive pests in Africa, 1-9. Springer, Cham, Switzerland. English language

International variation in phytosanitary legislation and regulations governing importation of plants for planting.

Eschen, R., Britton, K., Brockerhoff, E., Burgess, T., Dalley, V., Epanchin-Niell, R. S., Gupta, K., Hardy, G., Huang, Y., Kenis, M., Kimani, E., Li, H. M., Olsen, S., Ormrod, R., Otieno, W., Sadof, C., Tadeu, E., Theyse, M., (2015). Environmental Science & Policy 51, 228-237. Elsevier Ltd, Oxford, UK. English language

Efficacy of synthetic and non-synthetic fungicides against stem canker disease of tea

Oniang'o, M. O., Khare, K. B., Achwanya, O. S., Otieno, W., (2005). African Crop Science Journal 13(3), 209-214. African Crop Science Society (ACSS), Uganda. English language

Armillaria-Trichoderma interactions and management of Armillaria root rot of tea (Camellia sinensis (L.) O. Kuntze).

Otieno, W., (1998). Tea 19(1), 11-16. English language