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Leptosphaerulina trifolii

Leptosphaerulina trifolii Stenotaphrum secundatum (Rostr.) Petrak Grama, Gram Basionimo Sphaerulina trifolii SYMPTOMS The initial symptom of the disease is yellowing of the leaf tips, the affected area changes from yellow to brown and expands into the leaf sheath. The blades become necrotic and wither, leading to the death of large areas of grass. Small brown […]

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BLACK SPOT ON ROSE BUSHES

Diplocarpon rosae Rosa chinensis (Lib.) F.A. Wolf Rosal, Roser Drepanopezizaceae, Helotiales; Leotiomycetes Basionimo Asteroma rosae Lib. SYMPTOMS D. rosae can be distinguished from other related species by its host specificity, the rose bush to which it is confined. Black spot is a very important disease of roses. It starts on the surface of the leaves […]

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