Answer: Your tree has galls. Hackberries are great native trees that are tolerant of many temperature, soil condition and moisture extremes. They have a few problems that are mostly cosmetic. The gall ...

A student plopped a leaf on my desk, pointed to several green lumps on its underside, and asked, “What are those green growths?” It was a stump-the-professor moment, and in this case, I was indeed ...

I was standing at Pavilion 1 in Lancaster County Central Park one day early in June when a hackberry butterfly landed on my left arm. Immediately its long, straw-like mouth came out and I could feel ...

It can be unnerving to find that the leaves of an oak or hackberry tree are as bumpy as a rock-covered seashore in late summer. Other trees’ leaves may break out in acne-like red spots or sport ...

Dear Neil: What are the pimple-like growths on the leaves of my hackberry tree? Are they harmful? Those are insect galls that result when the female insect stings the leaves of the tree and lays her ...

A gall is an abnormal growth or swelling of a plant caused by hormones released from insects, mites, bacteria, or nematodes. They can appear on any part of the plant with vast variation in morphology, ...

Each year in late spring and early summer, homeowners begin noticing strange growths on the leaves or stems and are concerned for the health of their trees. Several different types of galls are common ...

Question: My hackberry trees are dropping leaves for no apparent reason. The leaves look fine, no bugs or mold spots or discoloration of any kind. Do you have any idea what might be causing the leaf ...

Question: My hackberry trees are dropping leaves for no apparent reason. The leaves look fine, no bugs or mold spots or discoloration of any kind. Do you have any idea what might be causing the leaf ...