Journals/conference
papers and book chapter
1.
Umar, I. B.
A.O.Okusanya, M.D.Toungos (1996). Cassava peelings amendment and the control of M.
javanica on Tomato. Journal of Technology and Development, 6:70-73
2. Umar, I. (1999).
Effects of mixture of four organic amendments in the control of root
knot nematode – Meloidogyne javanica on
cowpea (Vignia unguiculata Walp L.) Nigerian J. of Tropical
Agriculture, 1,: 98-100
3. I. Umar and M.Y.
Jada (2000). The efficacy of mixtures of two organic amendments (Parkia seeds
and goat manure) on the control of M. incognita on
Tomato. Global journal of Pure and Applied Science,6 (2): 177-180
4. Umar, I. (2000). The
effect of intercropping groundnuts, onion and marigold on the infectivity of
root knot nematodes on the growth and yield of Tomato. Nigerian J. of
Tropical Agriculture, 3, 2: 140-143
5. I. Umar (2000).
The effect of carbofuran on the control of M .javanica on
Tomato. International conference on the role of Agriculture in
the Nigerian economy, organized by the school of Agriculture and Agricultural
Technology, F.U.T Yola, between 13-16th November 2000, 193-195
6. I. Umar and M.Y. Jada (2005). Pests and diseases of
field crops in Adamawa
state. In Igwe et al (eds), Agriculture in Adamawa
state, Paraclet publishers, 167-171
7. I. Umar and D. Chubado (2008). Effect of oilseed
cakes and ploughing against plant parasitic nematodes on cowpea (Vigna
unguiculata (L) Walp). Medwell Agricultural Journals Pakistan,Vol.
3(5):349-352 (international)
8. Umar, I. and S.Y.Simon (2008). Survey of plant
parasitic nematodes in the Benue valley of Adamawa state, Nigeria, Medwell
Agricultural Journals Pakistan, 3(5) 353-356 (international)
9. Umar, I., Z. Muhammad and B.A.O. Okusanya (2010). Effect of
organic amendments on the control of Meloidogyne javanica (Kofoid
and White, 1919)Chitwood, 1949) on tomato (Lycopersicon lycopersicun Mill). J. of Agriculture,
Business and Technology, 8:63-77
10. Umar, I. (2011). Effect of locust bean leaves and
barks on the control of Meloidogyne incognita on cowpea (Vigna
unguiculata (L) Walp. Nigerian J. of Tropical Agriculture,
11: 16-22
11. Umar, I. and Chubado, D. (2009). Use of soil
amendments on the control of Meloidogyne javanica on the growth and
yield of Lycopersicon lycopersicun Kart Nigerian J. of
Tropical Agriculture, 11: 27-32
12. I. Umar and F. James (2010). Effect of Ginger powder on the
control of root knot nematode on Tomato (Lycopersicon lycopersicun,
Kart), Global Journal of Agricultural sciences, vol 9, no.2,16-19
13. Umar, I (2010). Comparative efficacy of four organic
amendments on the control of root knot nematodes on cowpea. Journal of
Agriculture, Biotechnology and Ecology, Vol. 5(1)75-83 (international)
14. Mohammed, B. A and I. Umar (2012).
Evaluation of some plant materials for the control of root knot nematode on
okra in Yola, Adamawa state, Nigeria. New Clues in Science, 22 (2):
12-16 (international)
15. Muazu, A. A. and Umar, I. (2012).
Evaluation of some Green manure for the control of root knot nematode on cowpea
in Yola, Adamawa state, Nigeria. New Clues in Science, 22 (2):
17-22 (international)
16. I. Umar (2012). Effect of Pawpaw leaf Powder on the
control of Meloidogyne javanica on cowpea, Arid
Journal of Agriculture, Vol.21,55-56
17. I. Umar (2012). Survey of plant parasitic nematodes
in Mubi Adamawa state, Nigeria. Arid Journal of Agriculture, Vol.
21, 61-65
18. Umar, I. and Rimanskep, P.N. (2012). Effect of Horse
manure on the incidence of Meloidogyne javanica on Tomato (Lycopersicum
esculentum, Mill), Journal of Agriculture,
Biotechnology and Ecology, Vol. 5(1)56-61 (international)
19. I. Umar (2013). Nematicidal Potential of Syzygnum
aromaticum (L).leaf extract on M. javanica in
tomato (Lycopersicum esculentum, Mill).Taraba Journal of
Agricultural Research, 1(1): 97-99
20. I. Umar (2013). Effect of Nicotiana tobacum leaf
extract on the mortality of Meloidogyne javanica on
tomato (Lycopersicum esculentum, Mill).Taraba Journal of
Agricultural Research, 1(1): 100 -103
21. I. Umar and Mohammed, B. A. (2013). Effect of water
Hyacinth (Echhornia crassipes (Mart) Solms) leaf extract on the
juvenile mortality of M. incognita. IOSR Journal of Agriculture and
Veterinary science, 4(2): 46-48 (international)
22. Umar, I. and Aji, M. B. (2013). Effect of botanicals
in the control of M. incognita (Kofoid and White) Chitwood on
Soybean (Glycine max (L) Merr.]. IOSR Journal of Agriculture and
Veterinary science, 4(2): 43-45 (international)
23. G. T. Ojo and I. Umar (2013). Evaluation of some botanicals on root knot nematode
(M. javanca) in tomato (Lycopersicum esculentum, Mill) in
Yola, Adamawa state Nigeria, Biological Forum- An International Journal,
5(2): 31-36 (international)
24. Umar, I., Aji, M.B. and Adamu, M.Y. (2013). Effect of
leaf extract of Sida acuta Burm F. on juvenile mortality
of Meloidogyne javanica. Nigerian journal of Tropical Agriculture,
Vol. 13: 177- 180
25. Mamman, A. and Umar, I. (2013).
Nematicidal effect of Commelina bengalensis leaf powder on
root knot nematode on cowpea (Vignia unguiculata (L)Walp Nigerian
journal of Tropical Agriculture, Vol. 13: 181- 188
26. I. Umar and M. Y. Adamu (2013). Nematicidal Potential
of some botanicals on M. javanica in vivo and in
vitro. 4TH Biopesticides International Conference
Nov. 28-30 2013, Crop Protection Centre,
Department of Zoology, ST Xaviers College (Autonomous).
Palayamkottai, 627 002, Tamil Nadu, India
27. Aji, M.B. and Umar, I. (2014).
Nematicidal potential of extract of Coffee senna
on egg hatch of M. javanica. 39th Annual
conference of Nigerian society for plant protection held at
LAUTECH, Ogbomosho, Oyo state, 24- 28TH March, 2014
28. I. Umar and M. B. Aji (2014).Effect of leaf extract
of Cassia obtasifolia on juvenile mortality of Meloidogyne
javanica. 39th Annual conference of Nigerian society
for plant protection held at LAUTECH, Ogbomosho, Oyo state, 24- 28TH March,
2014
29. I. Umar and M. Y. Adamu (2014). Nematicidal Potential of
some botanicals on M. javanica in vivo and in vitro. Journal
of Biopesticides, 7 (sup.): 137-142 (international)
30. I. Umar and A. Mamman (2014). Nematicidal Potential
of Faidherbia albida fruit against Meloidogyne
javanica on cowpea, Pakistan Journal of Nematology,
32 (1):77-83 (international)
31. Umar, I. and Ngwandai,
P. A. (2015). Evaluation of leaf powder and extract of Datura
stramonium in controlling root knot nematode (M. javanica (Chitwood)
1949 on sweet melon in Yola, Adamawa State, Nigeria. ISAET, International
Conference on Engineering, Agriculture and Technology held at Dubai UAE,
9-11 January 2015
32. Ngwandai, P. A. an Umar, I. (2015).
Effect of leaf powder and extract of Tamarind indicus on
the control of root knot nematode (Meloidogyne javanica) on sweet melon
in Yola, Adamawa State,40th Annual conference of Nigerian
society for plant protection held at Raw Materials Research and Development
Council, 17th 20th March 2015
33. A. M. Saddiq, A. Ibrahim, M. Y. Jada and I.
Umar (2017). Soil Fertility Management: A tool
for sustainable disease and weed control in sub- Saharan Africa: A
Review, Recent Research in Science and Technology, 9: 18-24
34. C.S. Oaya, A. M. Malgwi, I. Umar and
A. Mohammed (2017). Insecticidal difference of wild spikenard on adult
mortality and female oviposition of groundnut bruchid, Caryedon
serratus Olivier on stored groundnut seeds and tamarind pods,
Recent Research in Science and Technology, 9: 24-29 (international)
35. Aji, M. B., Umar, I. and Adamu, M.
Y. (2017). Management of root Knot Nematode Meloidogyne javanica,
Kofoid and White, 1919)Chitwood, Nigerian Journal of Tropical
Tropical Agriculture, 17, 20-23
36. Oaya, C.S., A. M. Malgwi, I. Umar and
Samaila, A. E. (2018): Phytochemical analysis of wild spikenard (Hyptis
suaveolens L. Poit) whole plant powder as a biopesticides for
the control of storage insect pests. Journal of Agriculture, Food
Security and Sustainable Environment 1(1): 3635-3647 (international)
37. Aji, A.M; Umar, I. and Mamman, A.
(2020). Efficacy of extract of Pigweed (Hyptis suaveolens) extract in
controlling root knot nematode (Meloidogyne javanica)Treub Chitwood
juveniles
38. A. Mamman; I. Umar; A. M. Malgwi and
G.T.Ojo (2021). Efficacy of leaf extract of Piliostigma Thonningii for
control of root knot nematode (Meloidogyne javanica) on eggplant
39. I. Umar, Malgwi, A.M.and Mamman, A. (2023). Nematicidal
activity of Newbouldia laevis(P.Beauv>) Seem. Leaf extract
against Root knot Nematode Meloidogyne javanica (Treub)Chitwood
on Eggplant (Solanum spp) in Jalingo, Nigeria. Asian J. of Agriculture
and Horticultural Research, vol.10 No. 4. 606-613 (international)
40. Hasiya, U. J., Umar, I., Aji, M. B. and Jaada, M.Y. (2023).
A Survey on Isolation and Identification of Plant Parasitic Nematodes
Associated with Okra (Abelmoschus esculentus (L.)Moench) in Adamawa
State. Nigerian journal of Tropical Agriculture, Vol. 27: 213-221:
BRIEF BIOGRAPHY OF PROFESSOR IBRAHIM UMAR Professor Ibrahim Umar is a professor of crop protection and the 9th vice-chancellor of Modib...
CONSULTANCY/WORKSHOP AND OTHER FIELD WORK EXPERIENCE i) Resource person for the monthly review meeting for the training of...
