Sensibilidad de cepas silvestres y mutantes de Trichoderma harzianum a fungicidas

Translated title of the contribution: Sensitivity of wild-type and mutant Trichoderma harzianum strains to fungicides

Rodrigo Herrera, David Núñez, Natalia Romero, XIMENA ALEJANDRA BESOAIN CANALES, Luz María Pérez, Jaime Montealegre

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The germination of conidia in wild-type (Th11, Th12 and Th650) and mutant (Th11A80.1, Th12A10.1 and Th650-NG7) strains of Trichoderma harzianum that were exposed to different commercial fungicides was studied. All wild-type and mutant Trichoderma strains were germinated in the presence of 1,700 mg L-1 of pencycuron. The wildtype strains Th12 and Th650 and the corresponding mutant strains Th12A10.1 and Th650-NG7 were sensitive to all concentrations of iprodione and metalaxil + mancozeb. The EC50 (Median Effective Concentration) values for the different fungicides were between 10-1 and 10-4 less than the concentrations recommended for field applications; one exception was Phyto-fos on Th650- NG7, where this ratio was 0.72. These results establish whether some of these fungicides can be used in combination with the biocontrol agents evaluated.

Translated title of the contributionSensitivity of wild-type and mutant Trichoderma harzianum strains to fungicides
Original languageSpanish
Pages (from-to)569-576
Number of pages8
JournalCiencia e Investigacion Agraria
Volume39
Issue number3
DOIs
StatePublished - 1 Dec 2012

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