Apple Scab

Apple scab is a fungus that causes spotting and scabbing on the
fruit and leaves.
Apple Scab

Blossom End Rot

Blossom end rot is a physiological disorder of tomatoes
where the tissue of the blossom end of the fruit breaks down and rots.
Blossom End Rot

Cedar Apple Rust

Once on the infected plant, the spores create lesions on the leaf surface, these will have the rusty look.
Cedar Apple Rust

Emerald Ash Borer

EAB is a small, leaf-eating beetle,  that feeds and causes damage to ash trees.
Emerald Ash Borer

Lilac Borer

Lilac Borer is a wood-boring beetle that only feeds in the cambium layer, just inside the bark of the tree.
Lilac Borer

Chlorosis

Chlorosis is a complete yellowing of the leaf due to lower than normal amounts of chlorophyll.
Chlorosis