In Vitro Evaluation of Antibacterial Activity of Copper and Sulfur Nanoparticles for Controlling Bacterial Blight Caused by Xanthomonas sp. in <em>Anthurium andraeanum</em> Lind

Bacterial blight in Anthurium andraeanum Lind. which is caused by Xanthomonas sp. regarded as the most threatening disease anthurium industry worldwide. Therefore, current study was carried out to determine whether application of copper nano particles (CuNPs) and sulfur nanoparticles (SNPs) a possible solution control bacterial anthurium. The bacterium isolated using standard methods single colony grown nutrient agar (NA). colonies produced cultures were identified they Gram-negative, motile rods with yellow colour due production xanthin. symptoms appeared pathogenicity test injecting purified into free plants confirmed identification strain. Concentrations 5, 15 25mg/100ml CuNPs 50, 75 1000 mg 100ml SNPs mixed separately investigate behavior two types destroying bacterium. All three concentrations (5, 25 mg/100ml) used suspensions did not support any growth. In contrast, all showed growth though it less /in compared treatment. Hence can be concluded that 5 mg/100 ml capable vitro causes andraeanum.