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Abbrevia: J. Agric. Res Nat Resources.

Language: English

ISSN: ISSN 2315-6279

DOI: 10.14412/JARNR

 

 

  J. Agric. Res. Nat. Resour.      

  3(4): 147-159, July 2019


 
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Journal of Agricultural Research and Natural  Resources,

Vol. 3 (4), pp 147-159, July 2019

doi: 10.14412/JARNR2019.0159

(ISSN 2315-6279) 2019 Science Park Journals

 

Full Length Research Paper

Efficacy of Bio-pesticides as wood preservative against termite infestation and fungal attack.

* Asonibare A.O and Osunlaja O.A

 

Forestry Research Institute of Nigeria, P.M.B 5054, Jericho, Ibadan.

 

ABSTRACT:

 

Wood exhibits unique structure and chemical properties that render it desirable for broad varieties of end use, including shelter, clothing, paper, fuel/energy source and medicine. The efficacy of Citrus aurantifolia, Cymbopogon citratus and Chromolaena odorata, against fungal growth and termite attack was investigated. The wooden blocks measuring 20x20x60 (mm) were prepared from tree species of Pinus caribaea (Morelet), Cordia milleni (L.) Mangifera indica (L.) and Terminalia cattapa (L.). The wood samples were impregnated with the extracts prepared from plants above for 72hrs using dipping method. The wood samples were tested for termite infestation and fungal growth. Data collected include: phytochemical screening of the extracts, retention rate (%) and weight losses. The analysis of variance showed significant difference (P<0.05) in weight loss due to fungal and insect attacks. The control samples exhibited higher weight losses for termites and fungal attacks, the weight losses ranged from 15.791.34 to 23.42 2.72 and 19.50 3.25 to 24.52 3.85% for termites and fungi respectively. Pinus caribaea indicated weight loss ranged from 3.62 1.02 to 6.53 1.85% for the treated samples on exposure to insect attack. On exposure to fungal attack, the weight loss exhibited by Pinus caribaea treated with plant extracts ranged from 5.60 1.75 to 11.052.70 while that of Terminalia cattapa ranged from 9.352.19 to 10.052.52, Cordial milleni ranged from 6.321.05 to 9.701.65 and Magnifera indica ranged from 9.881.72 to 11.452.55% respectively. Pinus caribaea indicated high resistance to both termite and fungal attacks. The regression equation carried out to establish the relationship between weight loss exhibited by both fungi and termites indicated weak relationship (R2=0.43). This result is an indication that the selected plant extracts could serve as potential bio preservative for wood treatment.

 

Keywords: Wood, extract, fungi and termite.


 

 

                    



 

 

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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