Environmental Sustainability: Bioactivity of Leucaena leucocephala Leaves and Pesticide Residue analysis in Tomato Fruits.
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Date
2021
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Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. Mendel University in Brno
Abstract
Field studies were conducted on the application of Leucaena leucocephala leaf extracts as an alternative
to carbofuran a synthetic nematicide, while possible residues of carbofuran in tomato fruits were
also analysed. Acetone, methanol and petroleum ether fractions of the leaves of L. leucocephala were
applied at 200 mg/mL in variants of 100 mL, 150 mL and 200 mL to a naturally nematode infested
field. Comparison was made with carbofuran a synthetic insecticide and nematicide. Samples of
tomato fruits from carbofuran treated and untreated beds were extracted with ethyl acetate for
residual pesticide analysis to ascertain the exceedance of the maximum residue limit (MRL). Results
revealed that pesticide residue was significantly (p = 0.05) higher in plots treated with carbofuran
compared with standard MRL for carbofuran in tomatoes. Crude extracts of L. leucocephala were
as effective as carbofuran, while the fraction was however significantly better in producing higher
numbers of fruits and reduced nematode population in root and soil of tomato plants
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Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Plant production::Plant and forest protection
Citation
Fabiyi, O. A. and Olatunji, G. A. (2021). Environmental Sustainability: Bioactivity of Leucaena leucocephala Leaves and Pesticide Residue analysis in Tomato Fruits. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. 69 (4):473-480