ASSESMENT OF FUNGICIDES EFFECT ON FUSARIUM SPECIES ASSOCIATED WITH CARNATION PRODUCTION

Z.K. Smit, M. Petrov, M. Jandric Sevar
The number of Fusarium isolates were collected from different carnation producers with the aim to find antagonists suitable for integrated control. They were tested for pathogenicity to carnation variety "Scania" and ranked by increasing order of pathogenicity: F. solani, F. moniliforme, F. m. intermedium, F. o. f. sp. dianthy.

Susceptibility of isolates to fungicide differed in in vitro test. Growth inhibition (IC50) for benomyl was lower in F. o. d. than in F. solani and F. moniliforme, and for prochloraz, it was lowest in F. moniliforme.

The most agresive of F. o. d. was used in glasshouse experiment for evaluating fungicides in dip treatment, Benomyl and prochloraz were more effective than thiabendazole which induced slight transitory phytotoxicity. The fungicides effects were evident 3.5 months after the treatment and than gradually decreased.

The hypothesis that F. s. and F. m. isolated with reduced sensitivity in vitro could be used as integrated with corresponding chemicals to which the patogens are not resistant should be proved in vivo

Smit, Z.K., Petrov, M. and Jandric Sevar, M. (1989). ASSESMENT OF FUNGICIDES EFFECT ON FUSARIUM SPECIES ASSOCIATED WITH CARNATION PRODUCTION. Acta Hortic. 246, 295-298
DOI: 10.17660/ActaHortic.1989.246.37
https://doi.org/10.17660/ActaHortic.1989.246.37

Acta Horticulturae