Holly, Inkberry
Symptom Cause  
Sunken spots on leaves
Anthracnose Spot
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Holes in leaves
Blister Beetles
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Flower clusters covered with gray mold
Botrytis
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Leaves turn brown/black due to feeding. Rolled leaves, holes and tip dieback are additional symptoms.
Caterpillar of Holly Bud Moth
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Major damage to foliage
Deer
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Leaves spotted; cankers on branches
Dieback (fungus)
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Foliage looks burned
Dog Urine
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Berries discolored
Holly Berry Midge
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Berries fail to appear
Lack of Pollination
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Tip of leaves brown, internal larvae trails visible.  Leaves can be distorted. Premature drop of leaves.
Leaf Miners
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Sooty mold forms, suck juices from leaves; may kill plant
Mealybug
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Leaves turn yellow or white
Mineral Deficiency
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Leaves stippled, yellowing or bronze; dry out and drop may be webbing visible; sometimes galls form on leaves
Mite
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Leaves covered with white powder
Powdery Mildew
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Bark of trunk and roots gnawed
Rodent Injury
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Leaves/branches encrusted with small bumps
Scale Insects
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Black spots on leaves
Tar Spot (fungus)
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Swollen; sunken lesions on stems and trunk
Twig Canker (fungus)
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Weakened plants; yellow leaves; leaves discolored; covered with honeydew
Whiteflies
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Foliage damage in winter
Winter Burn
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