Blight
Blight is a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs. Accordingly, many diseases that primarily exhibit this symptom are called blights. Several notable examples are:
Monilinia oxycocci
When young cranberry shoots become infected, they show “tip blight” symptoms: shoot tips shrivel and a tan discoloration spreads from the tip of the shoot down the stem and into leaves. Cottonball tip blight differs from other shoot diebacks, in that tan V- or U-shaped lesions can be observed centered on the leaf midvein. Also, white, powdery conidia (asexual spores) appear on diseased shoots just before and during bloom. Tip blight of cottonball is often inconspicuous and is easily overlooked.