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An exact micro-plot experiment was conducted to determine the effect of fungicides (treatments: Sandofan Manco 64 WP, Penncozeb 80 WP, Tanos 50 WG; Tanos 50 WG applied three times; Tanos 50 WG, Penncozeb 80 WP, Tanos 50 WG) on the severity of late blight and early blight in three potato cultivars and on the composition of fugal communities colonizing potato leaves. The tested fungicides significantly...
Studies on disappearance of myclobutanil, kresoxim-methyl and flusilazole residues in fruit and leaves of apple trees of Idared variety were carried out. Kresoxim-methyl disappeared the most quickly. The initial deposits of that fungicide on fruits and leaves disappeared by half in 8 and 10 days, respectively. Four weeks after treatment residues of kresoxim-methyl in fruits and leaves were on the...
In laboratory experiments were evaluated: wetability, pH and retention on beetroot leaves (green, with amaranth tone, with powdery mildew). Static surface tension of a spray liquids was also determinated. Experiments were conducted with two fungicides (Domark 100 EC – tetraconazole and Bravo Plus 500 SC – chlorothalonil) and two adjuvants Atpolan 80 EC and Break Thrue S 240. It was concluded that...
Studies on sensitivity of microorganisms colonizing the leaves of winter wheat cultivar Almari to Amistar 250SC, Bravo 500SC fungicides and Bion 50WG plant resistance stimulator were performed in 2000-01. The studied fungicides decreased growth of hyphae fungi colonizing the leaves of winter wheat cultivated in pots, especially 24 hours after treatment, compared to control. Created free ecological...
Biological activity of6 fungicides in the inhibition of Phytophthora ramorum sporulation and development ofblight on rhododendron leaves and stems were evaluated. All tested compounds at dose 8 µg ofa.i./cm3 already inhibited zoosporangia formation at least in 73%. On leafpetioles and leafdisks, taken from rhododendron one week after treatment with fungicides, formation of chlamydospores was especially...
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