1. Ogunkeyede, O.M.O., Ogungbaigbe, L.O. O.O.R. Pitan and Alasiri K.O (1998). A preliminary investigation of the compatibility of eggplant and maize intercropping system. Proceedings of the Horticultural Society of Nigeria, 16th HORTSON conference, UNAAB, Abeokuta, 7 – 10 September, 1998 (Ed. F.O. Olasantan), 177 – 180
2. Pitan, Olufemi O.R. and Odebiyi J.A (1998). Effect of host plant on the level of hyper-parasitisation of mango mealybug parasitoid (Gyranusoidea tebygi Noyes). Proceedings of the Horticultural Society of Nigeria, 16th HORTSON conference, UNAAB, Abeokuta, 7 – 10 September, 1998 (Ed. F.O. Olasantan), 148-150
3. Pitan, Olufemi O.R., Odebiyi, J.A and Akinlosotu T.A. (1999). Introduction and establishment of the mango mealybug parasitoid, Gyranusoidea tebygi, in Nigeria. Proceedings of the Horticultural Society of Nigeria, 17th HORTSON conference, University of Port Harcourt, 1999. (Eds. V.C Umeh & E.O Olufolaji).
4. Fajinmi A.A., Adelaja B.A., Pitan O.O.R and Hughes N. (2000) Banana streak virus (Genus Badnavirus): A potential threat to plantain production in South western Nigeria, Proceedings of the Horticultural Society of Nigeria, 18th HORTSON conference, Institute of Agricultural Research, Ahmadu Bello University, Zaria, May 28th – June 1, 2000; (Ed. A.D. Akpa); 31-37.
5. Pitan, Olufemi O.R. (2001). Distribution pattern of the spiralling whitefly, Aleurodicus dispersus Russell, in tomato plant. Proceeding of the Horticultural Society of Nigeria, 19th HORTSON conference, University of Nigeria, Nsukka, 28th May – 1st June, 2001 (Eds. B. N. Mbah and K. P. Baiyeri), 98-100
Other Publications
6. Pitan Olufemi O.R. (2000) Crop protection practices in ornamental plant production, In: Flower nursery establishment and management (Eds. O.O.Oyedele & M.A. Adejoro) National Horticultural Research Institute, NIHORT, Ibadan, Nigeria Training Manual 2000; 22 pp.