Anthracnose is a common disease among deciduous trees especially sycamore ash and oak it also affects shrubs such as privet it causes unsightly dark sunken lesions on leaves stems flowers and fruits anthracnose fungi need water to spread and infect so the disease is more prevalent during wet cold springs. The barley yellow dwarf virus infects several grains and staple crops including wheat aphids primarily spread the virus the virus causes discoloration of leaves and the tips of the plants which reduces photosynthesis stunts growth and decreases production of seed grains. Many plant diseases can quickly return if the dead plant matter isnt properly disposed of in fact most fungal bacterial and viral plant diseases are spread naturally by wind currents rain soil seeds insects and other animals others can survive on nearby dead plants or infected gardening tools. Anthracnose is caused by a group of fungi that attacks leaves twigs flowers and fruits of a great number of tree and shrub diseases it can be found throughout various species in most of north america but important species to keep watch on are sycamore and flowering dogwood anthracnose symptoms vary by the pathogen and host species
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