Expert advocates for bio-pesticides to control pests

Prof. Ojo Fatoba, the Department of Plant Biology, University of Ilorin has advised farmers to use bio-pesticides instead of harmful chemicals in the control of pests.

Fatoba made the call in his presentation at the 183rd inaugural lecture of the university entitled: “The unrecognised are also important.”

According to him, chemical method has the attendants high cost, toxicity, undesirable effects on non-target organism, resistance of the strains and non-environmentally friendly.

Bio-pesticides are certain types of pesticides derived from natural materials as animals, plants, bacteria and certain minerals.

He said that bio-pesticides were derived from Bryophytes which belong to plant division.

He said that the plants grow in hydrochloric environments on different substrate such as tree bark, soil, concrete blocks, rotten logs or decaying woods.

Fatoba said that bio-pesticides were usually inherently less toxic than conventional pesticides.

“Bio-pesticides generally affect only the target pest and closely related organisms in contrast to broad spectrum, conventional pesticides that may affect organisms such as different birds, insects and mammals.

“They are often effective in very small quantities and often decompose quickly, resulting in lower exposures and largely avoiding the pollution problems caused by conventional pesticides,” he said.

The biologist also observed that natural product from some plants offer great potential for the development of new and potent pesticides.

Fatoba said that the studies he conducted revealed that agricultural produce were enhanced with the use bio pesticides.

He said that investigation was conducted on the effectiveness of moss plants as bio-pesticides agents against maize weevil.

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