Tuliptree Scale
Toumeyella liriodendri |
| USDA Forest Service. 1979. A guide to common insects and diseases of forest trees in the northeastern United States. Northeast. Area State Priv. For., For. Insect and Disease Management., Broomall, PA. p. 123, illus. |
This sucking insect, a major pest of yellow-poplar, may weaken, distort, or kill trees. Severe infestations also may limit tree regeneration. Other hosts include linden, walnut, and basswood.
The female bear living young in September and early October. A single female may have up to 3,500 crawlers over a period of 45 days. Crawlers are active for several days; during this time they may be dispersed from tree to tree by the wind. They later insert their mouthparts and overwitner. The partially grown or mature female scales is most noticeable; the latter is ¼ to ½ inch in diameter, hemispherical, and dark brown in color. The tuliptree scale normally has one generation per year.
Life Cycle ; female with crawlers.
Photo by Gerald J. Lenhard, Louisiana State University |
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