rust on bean

agricultural agriculture agronomical agronomy algeria algiers alternaria bean blight botrytis brown caused cereals chemical damage disease diseased environment erysiphe faba fabaceae fabae farm field food fungi fungicide fungus garlic green greenhouse health healthy ill intensive leaf leaves legume life loss losses microbiology mildew modern mycelium mycology natural nature organic pathological pathology pea pest photosynthesis phytopathology plant powder powdery production puccinia recondita rust rusty showing sick symptoms teliospore treatment uredospore uromyces white