Abstract:
Against grape vine gray mold has been elaborated different control
plans. Most researchers discovered that the treatments had the highest
efficiency when it is applied in the next phenological moments: to the flower
shake-up; to the grape compaction and to the grape greenness stadium.
To accomplish the experiences contained in this paper, we attend to
the phenological phases of Fetească regală genus, following the optimization
of the treatments plan, applied against grape vine gray mold.
In the paper are presented 3 new treatments plan, starting with the
basic plan which included 3 treatments and continued with a cyclic
elimination of treatments in every phenological moment.
Experiences were achieved in 2007-2008 agricultural year, in the
experiments were tested a number of 4 fungicides with different active
substance and method of action.
The main objectives were determining the effectiveness and efficiency
of fungicides tested, and checks the opportunity of application phytosanitary
treatments against gray mold disease of Vine, in the 3 phenology set points.
Effectiveness and economic efficiency of fungicides was calculated
taking into account the cost of plant protection products, the level of yields
obtained (determined by gravimetric method), correlated with the degree of
attack produced by the fungus Botryotinia fuckeliana (by Bary) Whetzel.
To determine the opportunity of application the 3 treatments against
gray mold of vine, in the 3 phenology set points, it was made a comparative
analysis of influence factors from the variants and also between the 4
experiments.
Analyzing the yields obtained it was found significant differences
between the 4 experiments and between the variants.
Regarding the degree of attack recorded in the 4 experiments it was
found that in the conditions of agricultural year 2007-2008 there were no
notable differences.
