Impact of pesticides on Trichoderma harzianum and on its possible antagonistic activity against Fusarium oxysporum under In vitro conditions

Journal Title: Asian Journal of Agriculture and Biology - Year 2017, Vol 5, Issue 4

Abstract

In vitro study was conducted to evaluate the effect of fourteen selected pesticides including six fungicides, four insecticides and four herbicides on the growth of a local strain of Trichoderma harzianum and on possible antagonistic activity of the treated fungus against Fusarium oxysporum. For compatibility study, each pesticide was tested at seven concentrations using poisoned food technique. While for the antagonistic activity study, treated T. harzianum was tested against F. oxysporium using dual culture technique under laboratory conditions. Significant differences were observed between the pesticides and the concentration used in the inhibition of mycelial growth and the inhibition increased with concentration increase. None of the concentrations tested of wettable sulphur, copper oxychloride, diazinon, cypermethrin, oxamyl, tribenuron-methyl and metribuzin suppressed the mycelial growth and the antagonistic potential of T. harzianum against F. oxysporium indicating the possibility of the integration between these pesticides and T. harzianum without any fear. However, the use of incompatible pesticides at all tested concentrations such as penconazole, iprodione, fenarimol and mancozeb and high concentrations of oxyfluorfen, glyphosate and imidacloprid may lead to inhibition of the growth and the antagonistic activity of T. harzianum as well as caution must be taken when using these pesticides in the disease management program. The obtained results will enable choice of combining T. harzianum with the selected pesticides within integrated disease management strategy.

Authors and Affiliations

M. A. Radwan

Keywords

Related Articles

Salicylic acid improves physiological traits of Zea mays L. seedlings under copper contamination

A pot sand culture experiment was conducted to study the effect of copper (Cu) on maize plant growth with or without salicylic acid (SA). Nutrient medium (i.e. half strength Hoagland) along with sixteen different concent...

Evaluation of the interaction of arbuscular mycorrhizal fungi and Trichoderma harzianum in the development and nutrition of potato plants (Solanum phureja)

Potato is the fourth most consumed food product around the world and one of the most produced crops worldwide, due to its nutritional and culinary properties. This crop is affected by certain pests such as phytopathogeni...

Morphological and molecular characteristics of Liriomyza sp. (Diptera: Agromyzidae) on onion plants (Allium cepa L.) in Bali

Liriomyza sp. leafminer fly is an important pest of shallot crops that spread widely in Southeast Asia and Pacific regions such as Indonesia, China, Japan, Korea, Thailand, Malaysia, Singapore, Taiwan and Vietnam. This s...

Assessment of sensitivity level of honeybee (Apis mellifera) to neonicotinoid insecticides

Declining population of honeybee day by day is the major threat, and this decline is due to variety of stressors. As honeybees are considered most important pollinators of our managed and wild corps, we investigated the...

Effect of soil type on growth, productivity, and essential oil constituents of rosemary, Rosmarinus officinalis

Rosemary, Rosmarinus officinalis L., is a remarkable medicinal plant containing number of phytochemicals with pharmaceutical and flavoring uses. As part of development of agro technology package of practices for large sc...

Download PDF file
  • EP ID EP606230
  • DOI -
  • Views 83
  • Downloads 0

How To Cite

M. A. Radwan (2017). Impact of pesticides on Trichoderma harzianum and on its possible antagonistic activity against Fusarium oxysporum under In vitro conditions. Asian Journal of Agriculture and Biology, 5(4), 291-302. https://europub.co.uk/articles/-A-606230