ORIGINAL ARTICLE
Effect of water quality on efficacy of fungicides in controling of rose rust
 
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Agricultural University Department of Plant Protection Methods Zgorzelecka 4, 60-198 Poznań, Poland
CORRESPONDING AUTHOR
Henryk Ratajkiewicz
Agricultural University Department of Plant Protection Methods Zgorzelecka 4, 60-198 Poznań, Poland
 
Journal of Plant Protection Research 2004;44(1):35–40
 
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ABSTRACT
Saprol 190 EC (triforine) and Rubigan 12 EC (fenarimol) diluted in 6 types of water were applied against rose rust Phragmidium mucronatum Cooke. No adjuvants were added to the emulsion except when the spray mix was made using water from Poznań prepared in 2 variants: with an addition of Citowett AL and without it. Independently on the plant protection product type, efficacy of fungicides diluted in well water from Szczepankowo, Kościan or Śmigiel was better than when they were diluted in water after reversed osmosis. However, no type of water exerted any significant effect on efficacy of the investigated fungicides independently on the year of studies, although, in 1999, a better biological activity was shown by Rubigan 12 EC diluted in water from Kościan and Poznań than when they were diluted in water after reversed osmosis. The fungicides were most effective after addition of Citowett AL, however, a visible effect of this adjuvant showing increased rose protection against rose rust was found only in 1998
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
 
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