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In vivo studies on the biological and chemical control of guava decline caused by different soil borne pathogens  [2008]

Bokhari, A.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Pathology) Sahi, S.T. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Pathology) Khan, M.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Pathology) Ahmad, R. (University of Agriculture, Faisalabad (Pakistan). Dept. of Crop Physiology) et al.

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Abstract
An experiment was conducted to study the effect of antagonist Trichoderma harzianum and different fungicides for the control of guava decline (Psidium guajava) in-vivo at the research area of Department of Plant Pathology, University of Agriculture Faisalabad. Guava decline is a serious disease caused by different pathogens Botryodiplodia theobromae, Fusarium oxysporum f. sp. Psidii, Phytophthora parasitica and Fusarium solani f. sp. psidii. The disease can be controlled effectively through antagonists but effectiveness increases when fungicides are used as soil drenching along with antagonists. This paper reports in vivo evaluation of fungal antagonist T. harzianum and the fungicides Topsin-M, Alert plus and Reconil-M for the control of guava decline. Various experiments were conducted to analyze the effectiveness of antagonist and fungicides for the control of disease. It was found that in control, where no fungicide and antagonist was added in soil, it showed ample disease intensity i.e. 24-57% and 44.15% in sterilized and unsterlized soil respectively. Statistical analysis revealed that disease intensity was zero and 0.74% when treated with T. harzianum and Topsin-M as drenches in sterilized and unsterlized soil and showed maximum control of disease.
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Other subjects

  • psidium guajava
  • trichoderma harzianum
  • botryodiplodia theobromae
  • phytophthora nicotianae parasitica
  • antagonism
  • fungicides
  • fusarium solani
  • soilborne organisms
  • fusarium oxysporum
  • disease control
  • in vivo experimentation
  • biological control
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Other information

Type : Journal Article

In AGRIS since : 2009

Volume : 45

Issue : 1

Start Page : 54

End Page : 56

All titles :

" In vivo studies on the biological and chemical control of guava decline caused by different soil borne pathogens "