Uncinula necator (Schow) Burr.: Efficacy of Several Fungicides under Production Conditions and on Scions
Uncinula necator (Schow) Burr.: efikasnost pojedinačnih fungicida u proizvodnim uslovima i na kalemovima
Author
Miladinovic, Zoran
Vuksa, Petar
Miletic, Novica
Keywords
Uncinula necatorFungicide
Efficacy
izbor fungicida
efikasnost zaštite
Metadata
Show full item recordAbstract
The efficacy of several fungicides based on sulphur, propiconazole, kresoxim-methyl
and pyrazophos was examined under production conditions and on scions in Podgorica
environs over three successive years (2002, 2003 and 2004). The experiments were conducted
based on EPPO methodology (1997) and data statistically processed.
Infestation with grape powdery mildew was found to be more intensive under production
conditions than on scions in each year of investigation. The heaviest infestation was on
the bunches and than on shoots and leaves. The most evident difference in fungicide efficacy
was also found on the bunches. Kresoxim-methyl demonstrated the highest average
efficacy. Propiconazole was highly effective, while the efficacy of pyrazophos and sulphur
was lower, and the intensity of disease, compared to control, was very significantly lower
in statistical terms. U proizvodnim uslovima i na kalemovima, na području Podgorice, tokom tri eksperimentalne
godine (2002, 2003. i 2004) ispitivana je efikasnost preparata na bazi sumpora,
penkonazola, kresoksim-metila i pirazofosa. Eksperimenti su izvedeni po metodama EPPO
(1997), a rezultati su odgovarajuće statistički obrađeni.
Utvrđeno je da se pepelnica vinove loze svake godine intenzivnije javljala u proizvodnim
uslovima nego na kalemovima. Takođe, najjači napad pepelnice bio je na grozdovima,
slede lastari, pa listovi. Na grozdovima je i najizraženija razlika u efikasnosti ispitivanih fungicida.
Najveću prosečnu efikasnost ispoljio je kresoksim-metil. Vrlo efikasan do efikasan je
bio penkonazol, a manje efikasni su bili pirazofos i sumpor, ali je i kod njih intenzitet oboljenja
u poređenju sa kontrolom, takođe, bio vrlo značajno manji.