Asian Journal of Bio Science

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Compatibility of Trichoderma Isolates to Selected Insecticides in vitro


Affiliations
1 Department of Plant Pathology, College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), India
2 Department of Plant Pathology, College of Agriculture, Bapatla (Karnataka), India
3 Department of Agricultural Entomology, College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), India
4 Department of Plant Pathology, College of Agriculture, Bheemarayanagudi (Karnataka), India
5 Department of Seed Science and Technology College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), India
     

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Eleven selected insecticides were evaluated for their compatibility to Trichoderma based on in vitro sensitivity of T. harzianum and T. virens. Observations on radial growth indicated that, chlorpyriphos and quinalphos were incompatible with Trichoderma spp showing 100 per cent inhibition of radial growth at field concentration. While dimethoate and endosulfan were least compatible showing more than 70 per cent inhibition of radial growth. Indoxacarb, carbofuran, fipronil were moderately compatible with radial growth inhibition in the range of 3-11per cent. Spinosad, emamectin benzoate, thiamethoxam and indoxacarb were found highly compatible with zero inhibition of radial growth of test Trichoderma isolates.

Keywords

Insecticides, Compatibility, Trichoderma.
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  • Compatibility of Trichoderma Isolates to Selected Insecticides in vitro

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Authors

M. Ranganathswamy
Department of Plant Pathology, College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), India
A. K. Patibanda
Department of Plant Pathology, College of Agriculture, Bapatla (Karnataka), India
G. S. Chandrashekar
Department of Agricultural Entomology, College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), India
S. B. Mallesh
Department of Plant Pathology, College of Agriculture, Bheemarayanagudi (Karnataka), India
D. Sandeep
Department of Seed Science and Technology College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), India
H. B. Halesh Kumar
Department of Seed Science and Technology College of Agriculture, University of Agricultural Science, Dharwad (Karnataka), India

Abstract


Eleven selected insecticides were evaluated for their compatibility to Trichoderma based on in vitro sensitivity of T. harzianum and T. virens. Observations on radial growth indicated that, chlorpyriphos and quinalphos were incompatible with Trichoderma spp showing 100 per cent inhibition of radial growth at field concentration. While dimethoate and endosulfan were least compatible showing more than 70 per cent inhibition of radial growth. Indoxacarb, carbofuran, fipronil were moderately compatible with radial growth inhibition in the range of 3-11per cent. Spinosad, emamectin benzoate, thiamethoxam and indoxacarb were found highly compatible with zero inhibition of radial growth of test Trichoderma isolates.

Keywords


Insecticides, Compatibility, Trichoderma.