Jul 14, 2017 · Red bay psyllid galls are almost universally present on P. borbonia and P. palustris. In fact, they are so omnipresent that Nelson (1994) has suggested using the presence of the …

Apr 25, 2024 · Leaf galls, alarming bumps on tree leaves, aren't insects or diseases. They are the tree trying to heal itself. Discover what to do when you spot them.

Photographs and descriptions of various galls on bay trees.

Mar 15, 2023 · While the oak leaf gall is quite typical in our area, another commonly seen gall is that of the swamp bay (Persea palustris). I have never seen a swamp bay tree without many …

May 23, 2017 · Galls on a Red bay tree (Persea borbonia) cause by a very small insect called the red bay psyllid (Trioza magnoliae) They can appear to be causing great harm to their host …

Galls are abnormal growths of plant tissue induced by insects and other organisms. Gall-making parasites release growth-regulating chemicals as they feed, causing adjacent plant tissues to …

May 17, 2021 · Odd little bumps on leaves and funny protuberances on plant leaves may be a sign of pest, bacterial, or fungal problems. Leaf galls are actually harmless but it helps to know …

Galls can be found on any part of the plant, but are most often observed as large, swollen growths on a leaf, petiole, twig, or branch. Most galls are caused by mites and insects. Gall mites …

Plant galls are abnormal growths that occur on leaves, stems, or branches of various plants. They are caused by insects, mites, bacteria, fungi, or viruses.

Mar 31, 2025 · There may be one to eight galls per leaf, and up to 80% of the foliage may have galls. However, even heavy infestations cause little real damage to the health of infested bays.