A. NATIONAL
(i) 1st National Congress of Science and Technology held at University of Ibadan from 14th to 20th August, 1988.
(ii) 3rd Annual Conference of Botanical Society of Nigeria held at University of Lagos from 6th to 9th March, 1989.
(iii) 5th Annual Conference of Botanical Society of Nigeria held at Obafemi Awolowo University, Ile-Ife, Nigeria from 6th to 9th March, 1991.
(iv) 33rd Annual Conference of Science Association of Nigeria held at University of Ilorin, Nigeria from 11th to 15th April, 1991.
(v) 6th Annual Conference of Botanical Society of Nigeria held at University of Jos, Nigeria from 29th March to 12th April, 1992.
(vi) 18th Annual Conference of Nigeria Society for Animal Production held at Federal University of Technology, Owerri, Nigeria from 1st April to 5th April, 1993.
(vii) 34th Annual Conference of Science Association of Nigeria held at Bayero University Kano from 16th to 20th December, 1993.
(viii) 35th Annual Conference of Science Association of Nigeria held at University of Agriculture, Abeokuta from 4th to 8th June, 1995.
(ix) 21st Annual Conference of Nigeria Society for Microbiology held at University of Benin, Nigeria from 3rd to 6th December, 1995.
(x) Problem-oriented Research Methodology in Agriculture (PORMA) workshop held at University of Agriculture, Abeokuta from 7th – 21st September, 1997.
(xi) Industrial training workshop on edible mushroom cultivation technology held at Federal Institute of Industrial Research Oshodi, Nigeria from 3rd-7th November, 1997.
(xii) 23rd Annual Conference of Nigeria Society for Microbiology at FIIRO, Oshodi, 1st-4th December, 1998.
(xiii) 13th Annual Conference of Botanical Society of Nigeria, held at University of Agriculture, Abeokuta, from 9th – 13th March, 2002.
(xiv) 16th Annual Conference of Botanical Society of Nigeria, held at University of Benin, Benin-City, Nigeria, from 11th – 15th March, 2007.
B. INTERNATIONAL
(i) 4th Regional Mycology congress of African Mycology Association held at the University of Nairobi and Millimani Hotel, Nairobi, Kenya, 17th-19th August, 1998. www.ku.ac.ke/schools/spas/images/stories/docs/Okemo.pdf
(iv) Biothailand 2003 held at National Centre for Genetic Engineering and Biotechnology, Pathamthani, Thailand, 17th-20th June, 2003.
(v) 3rd International Medicinal Mushroom Conference held in Washington DC, USA, 12-17th Oct., 2005.
C. UNIVERSITY AND COLLEGIATE SEMINARS
(i) College Leadership Seminar series No. 1 titled “Physiological and Cultivation studies on Lentinus subnudus Berk (Polyporales, polyporaceae)” – 16th June, 1999.
(ii) University Seminar entitled “Responses of Vegetable Plants to growth regulator treatments” at Moi University, Kenya – 5th November, 2002.
(iii) University Seminar entitled “Effects of pre-sowing hardening treatments of cereals on germinability, growth and yield” at Moi University, Kenya – 4th Feb., 2002.
(iv) University Seminar entitled “Studies on the metabolism and fruitbody production of Lentinus subnudus Berk, an edible Nigerian mushroom” at Bayero University, Kano, Nigeria, 9th Sept. 2003.
