EVALUATION OF THE EFFICACY OF NATURAL COMPOUND AND CUPPER NANO PARTICLE COMPOUNDS IN CONTROLLING CERCOSPORA LEAF SPOT DISEASE OF SUGAR BEET
Keywords:
Sugar beet, CuNps compounds, Leaf spot, Sugar-beet, Essential oilsAbstract
In an attempt to search for alternative to fungicides, certain new natural formulation (Plco-free)
and Copper nanoparticles (CuNps) beside Montoro 30% (difencoconazole + propiconazol)
fungicide were evaluated against CercosporabeticolaSacc, the causative fungus of leaf spot
disease of sugar-beet (Beta vulgaris var. saccharifera, L.) under field conditions. Also, effect of
the tested materials on some parameters of sugar-beet e.g. root fresh weight, soluble solid
content(T.S.S), Chl.a, Chl.b, leaf temperature ,flow transpiration, Carbon dioxide rates, diffusive
resistance, conductive coefficient and rate of pushing juice were estimated. The results showed
that the biocontrol formulation was the most effective treatments against the leaf spot of sugarbeet followed by Montoro and CuNps respectively in both growing seasons. Assayed materials
represent potential effective alternatives for fungicides in controlling the leaf spot of sugar-beet
