Foldscope is a paper microscope based on origami which easy to use and extremely portable. Paper doesn’t require any special laboratory facilities or high-cost chemicals. The present research study how foldscope can be used as an efficient tool for farmers get known about plant pathogens by seeing symptoms parts. For optical visibility of pathogen glass slides were along with small diseased par...

Species of fungi in the order Erysiphales cause disease referred to as powdery mildew which affect more than 10,000 angiosperm species (Glawe, 2008). These are obligate pathogens with a global distribution especially temperate regions northern hemisphere (Braun & Cook, 2012). Iran possesses one richest apiaceous floras world (Valiejo-Roman et al., 2006) and some these susceptible mildew, includ...