APPENDIX. 



SPECIES WHICH ARE NOT CONTROLLING TREES IN THE WHITE-PINE REGION. 



Class I. — Favored food of gipsy-moth 

 larvae in all stages. 



Ash, Mountain. 1 ' 3 

 Balm of Gileacl. 1 

 Basswood. 1 

 Birch, Paper. 3 

 Birch, River. 1 ' 2 

 Boxelder. 1 ' 2 

 Oak, Bur. 1 

 Oak, Chestnut. 1 

 Oak, Pin. 1 

 Oak, Post. 1 

 Oak, Swamp white. 1 

 Service Berry. 2, 4 

 Sumac, Dwarf. 2, 4 

 Sumac, Staghorn. 2, * 

 Tamarack. 1 

 Willow, Glaucous. 1, 2 

 Witch Hazel. 1, 2 



Class II. — Favored food after earlier 

 stages. 



Pine, Red. 3 

 Spruce, Black. 1 

 Spruce, Red. 1 

 Spruce, White. 1 



Class III. — Not particularly favored 



food. 

 Birch, Black. 1 

 Birch, Yellow. 1 

 Beech, Blue. 2, 4 

 Cherry, Black. 1 

 Cherry, Choke. 2,4 

 Cherry, Wild Red. 2, 4 



Class III. — Not particularly favored 

 food — Continued. 



Cottonwood. 1 

 Elm, American. 3 

 Elm, Slippery. 1 

 Gum, Black. 3 

 Hickory, Bitternut. 1 

 Hickory, Mockernut. 1 

 Hickory, Pignut. 3 

 Hickory, Shagbark. 3 

 Hop Hornbeam. 2 ' 4 

 Maple, Silver. 1 

 Poplar, Silver. 1 

 Sassafras. 1 ' 2 



Class IV. — Unfavored food. 



Arborvitse. 1 



Ash, Black. 3 



Ash, Red. 1 



Balsam Fir. 2 



Butternut. 1 



Dogwood, Flowering. 2, * 



Hackberry. 1 



Holly, American. 4 



Laurel, Mountain. 3, 4 



Locust, Black. 1 



Locust, Honey. 1 



Maple, Mountain. 2 ' 4 



Maple, Striped. 2, 4 



Mulberry, Red. 1 



Sheepberry. 2, 4 



Sycamore. 1 



Tulip. 1 



Walnut, Black. 1 



PUBLICATIONS OF U. S. DEPARTMENT OF AGRICULTURE ON THE 



GIPSY MOTH. 



1. FARMERS' BULLETINS. 



No. 



275. The Gipsy Moth and How to Control It. L. O. Howard, 1907. 22 pages, 

 illus. (Superseded by No. 564.) 



453. Danger of General Spread of the Gipsy and Brown-tail Moths through Im- 

 ported Nursery Stock. C. L. Marlatt, 1911. 22 pages, illus. 



1 Occurs infrequently. 



2 Of low value. 



3 A few stands in the region may be found where this species is sufficiently represented 

 to require consideration in making plans of management. 



4 Always small in this region. 



51 



