Efficacy of the fungicide based on metrafenone (Vivando) in control of
the pathogenic fungus Erysiphe necator, the causal agent of grapevine powdery
mildew, has been studied at the experimental field of the Biotechnical Faculty in
Podgorica (Podgorica's vineyards area). The experiments were conducted in 2011 and
2012, and were set according to the EPPO methods. The assessment of efficacy was
performed on leaves and clusters of grapes. During 2011, nine treatments were
performed, and in 2012 five. The obtained efficiency in both years amounted 100%,
although the intensity of the disease varied in different experimental years. In 2011, on
control plots disease intensity was high - 98.25% on leaves and 98.03% on clusters, and
in 2012 was quite lower - 65.83% on leaves and 62.05% on clusters.
The active substance metrafenone exhibited high efficiency at different, very high,
intensities of the disease.Na oglednom imanju Biotehničkog fakulteta u Podgorici (Podgoričko
vinogorje) ispitivana je efikasnost fungicida na bazi metrafenona (Vivando) u suzbijanju
fitopatogene gljive Erysiphe necator, prouzrokovača pepelnice vinove loze.
Eksperimenti su izvedeni tokom 2011. i 2012. godine, a postavljeni su po metodama
EPPO. Ocjena efikasnosti obavljena je na listovima i grozdovima. Tokom 2011.
obavljeno je devet tretiranja, a u 2012. pet. Dobijena efikasnost u obe godine je iznosila
100%, iako se intenzitet oboljenja razlikovao u eksperimentalnim godinama. Tokom
2011. na kontrolnim parcelama iznosio je visokih 98,25% na listovima i 98,03 na
grozdovima, a u 2012. bio je dosta niži - na listovima 65,83%, a na grozdovima 62,50%.
Aktivna supstanca metrafenon ispoljila je visoku efikasnost pri različitim, vrlo visokim,
intenzitetima oboljenja
