Full Length Research
determining the use of botanical insect pest control methods
by small-holder farmers in the Lake Victoria basin, Kenya
A. L. Deng1*, J. O. Ogendo2,
G. Owuor3, P. K. Bett1, E. O. Omolo2,
M. Mugisha-Kamatenesi4 and J. M. Mihale5
of Biological Sciences, Egerton University, P. O. Box 536
20115 Egerton, Kenya.
of Crops, Horticulture and Soils, Egerton University, P. O.
Box 536 20115 Egerton, Kenya.
of Agricultural Economics, Egerton University, P. O. Box 536
20115 Egerton, Kenya.
of Botany, Makerere University, P. O. Box 7062, Kampala,
Uganda. 5Department of Chemistry, The Open
University of Tanzania, P. O. Box 31608, DAR ES SALAM,
Tel: +254 722 793465.
Accepted 16 May,
A farm survey was conducted in three representative
administrative districts of the Lake Victoria Basin (LVB),
Kenya to document farmers’ indigenous knowledge and the
factors that influence the use of botanicals instead of
synthetic insecticides in insect pest management. A total of
65 farm households were randomly sampled using stratified
sampling procedure. The maximum likelihood log model was
used to determine factors that influence use of botanical
and synthetic insect pest control methods (PCM). Results
revealed that female gender as household head (HH) and age
significantly (P < .001) increased the likelihood of
a household using botanical PCM in the field by 0.15 and
0.021, respectively. In storage, female gender and severity
of pest infestation significantly (P < .001)
increased the probability of a household using botanical
insecticide by 0.814 and 0.738, respectively. On the
contrary, education of HH (0.342) and ownership of title to
land (0.512) significantly (P < .001) reduced the
likelihood of using botanical PCM in the field, while
traditional rank (0.910) and cash rank (0.744) of the crops
reduced the likelihood of using botanical insecticides in
the store. With respect to synthetic pesticides, gender
(3.407), area cultivated (0.295) and expected yield (5.315)
significantly (P < .001) reduced likelihood of their
use in the field, while food rank (3.967) reduced the
probability of use in storage. In storage, female gender,
crop type, food and traditional rank of crops were also the
most important factors determining the use of botanical
control methods. In conclusion, the study established that
female gender, literacy levels, wealth endowments in form of
land and old age are key determinants of botanical
insecticides use in small-holder farming systems in the LVB,
Kenya. It is recommended that the Government of Kenya enacts
policies that empower youth and female gender economically
in subsistence farming with the aim of improving their
educational levels and farming skills to modernize
agriculture among the rural communities.
Botanical, synthetic pesticide, insects, pest control
method, determinants, small-holder farmers.