The Effect of Repeated Application of the Pesticide Monocrotophos(Nuvacron) on Soil Micro-organisms and Plant Nutrients in Kenaf Field

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The effect of monocrotrophos(Nuvacron)on type and number of bacteria and fungi on Kenaf field was investigated using serial dilution techniques and pour plate method.The number of bacteria decreased gradually during insecticide treatment but the fungi population was more adversely affected.The bacteria population multiplied rapidly three times the initial number four weeks after the insecticide treatment had ceased,however a continuous decrease in the fungi population was noticed.The most predominant genera of bacterial isolated were Pseudomonas,Staphylococcus,Streptococcus and Bacillus while Proteus,Aerobacter and Clostridium were destroyed by insecticides treatment.The gram-positive bacteria was less affected when compared to gram negative bacteria by treatment.For fungi,the predominant genera isolated were Fusarium and Aspergillus sp. while Clasdosporum sp and penicillum were adversely affected by the insecticide treatment.Incorporation of Insecticide also significantly stimulated the mineralisation and availability of organic carbon, nitrogen and other nutrients in the soil microbia population


Keywords: Monocrotrophos, Bacteria, Fungi, Plant Nutrients, Kenaf Field
Stream: Environmental Sustainability
Presentation Type: Paper Presentation in English
Paper: A paper has not yet been submitted.


Olusolape Afolake Ilusanya

Lecturer, Department of Microbiology
Faculty of Science,, Olabisi Onabanjo University

Ago Iwoye, Ogun, Nigeria

Olusolape Ilusanya holds a bachelor and masters degree in Microbiology.He has been teaching microbiology to undergraduate students for some years.She is a specialist in Environmental Microbiology and at present doing her doctoral in this area at the Olabisi Onabanjo University,Ago-Iwoye ,Nigeria

Ref: S08P0041