Hickory
Symptom Cause  
Irregular tan or brown spots on leaves at veins; expand until leaves die; sometimes sunken spots on leaves
Anthracnose (on plants)
>
Young portions of foliage disappear, or young tips disappear, bark peeled off
Deer
>
Galls on leaves; stems and twigs
Gall Aphids
>
Holes in bark; twigs wilt
Hickory Bark Beetles
>
Many holes in branches; limbs girdled sawdust at holes
Hickory Borers
>
Leaves rolled together; discolored
Hickory Leafrollers
>
Trees defoliated, brown egg cases appear on trunk
Larvae of Gypsy Moth
>
Target-shaped cankers on trunks
Nectria Canker (fungus)
>
Holes in leaves
Pecan Cigar Casebearers
>
Bark on trunk and roots gnawed
Rodent Injury
>
Tiny bumps on leaves and stems
Scale Insects
>
Branches densely clustered together
Witches' Broom (fungus)
>