| Young crawlers settle on the upper surface of immature leaves, causing galls to form on the under surface of the leaves. |
| The female gall fly lays her eggs in young buds, causing the plant to form galls. |
| Oak apple galls are sometimes mistaken for an actual crop of the tree, such as apples on on apple tree, but are actually deformed leaves. |
| Most crown galls are caused by the bacteria, but be aware that other things can look like them. |
| The best Aleppo galls, collected in Asiatic Turkey, principally in the province of Aleppo, are collected before the insects escape. |
| Some rosarians also report success by pruning away galls and spraying the infected area with an anti-bacterial solution. |
