At the onset, the blight caused by the fungi Calonectria pseudonaviculata introduces itself with brown spots on the leaves.

Northern corn leaf blight (NCLB) is a disease of corn caused by the fungus ... Symptoms generally appear first on the lower leaves, but may move higher in the canopy as the disease progresses. Leaf ...

the leaves will drop and new leaves will emerge. If it’s stem damage from severe cold temperatures, the stems may die. And, if you had Volutella stem and leaf blight in the past, you may see it again ...

From left to right, the trees are a blight-susceptible wild-type American chestnut (C. dentata) called Ellis 1, a blight-resistant Chinese chestnut (C. mollissima) tree called 'Qing,' and two ...