barberry leaves affected by puccinia graminis

pathogen fungal spores puccinia graminis leaf disease harmful plant intermediate cereals wheat growth agriculture meadow farm nature red people photography flower fragility botany outdoors day summer tree change development discovery evolution improvement progress textured vulnerability closeup freshness bud environmental conservation focus foreground herbarium inflorescence pattern perennial yellow agricultural field blossom environment europe forest fruit garden barberry leaves affected shrub berberis sp host serious crop barberry