1. By Dakota Raponi

2. .Oak Wilt.Emarald Ash Borer.Asian Longhorned Beetle.Hemlock Wolly Adelgid

3. Grows in the water-conducting vessels of host trees and as it does, it causes the vessels to produce gummy plugs that prevent water transport, eventually causing tree death.

4. Description:they are metallic green beetle with wings and body tapered towards the rear.Damage:Larval feeding under the bark girdles and kills ash trees. Since its discovery in the United States in 2002 emerald ash borer has killed millions of ash trees.

5. descriptions:Glossy black (think patent leather), very smooth beetle with white spots on the wings. Antennae are at least the length of the body and banded with black and white.Damage:Tunneling by larvae girdles tree stems and branches. This leads to dieback of the tree crown and eventual death of the tree.

6.  Description:A small aphid-like insect covered with white, waxy wool-like material. This wool-like covering makes the insect resemble miniature cotton balls. It is most visible from late-October through July. Wool masses are located on the undersides of the twigs at the bases of the needles (not on the needle, but on the twig).Damage:Feeding by the adelgid leads to needle loss, crown thinning and dieback and eventual mortality of trees.

7.  The Oak Wilt damages the feeding by the adelgid leads to needle loss, crown thinning and dieback and eventual mortality of trees.  The Emerald Ash Borer damages the larval feeding under the bark girdles and kills ash trees.  The Asian Longhorned Beetle damages tunneling by larvae girdles tree stems and branches. This leads to dieback of the tree crown and eventual death of the tree.  The Hemlock Wolly Adelgid damages Feeding by the adelgid leads to needle loss, crown thinning and dieback and eventual mortality of trees.

8.  watershed protections  air puricfication  recreation-example they are buying there fire wood from camp sides .climate regulation

9.  the import of invasive plants  poor timber management  air pollution  pests and diseases