CONTROL OF GIPSY MOTH BY FOREST MANAGEMENT. 21 
CONTROLLING TREES OF THE WHITE-PINE REGION AND THEIR CHIEF SILVICAL 
CHARACTERISTICS. 
CLASS I: SPECIES THAT ARE FAVORED FOOD OF THE GIPSY-MOTH LARVZ IN ALL THEIR 
STAGES. 
Aspen (Populus tremuloides Michx.). 
Aspen, Large-tooth (Populus grandidentata Michx.). 
Beech (Fagus atropunicea [Marsh.] Sudw.). 
Birch, Gray (Betula populifolia Marsh.). 
Oak, Scrub (Quercus pumila [Marsh.] Sudw.). 
Oak, Black (Quercus velutina Lam.). 
Oak, Red (Quercus rwbra Linn.). 
Oak, Scarlet (Quercus coccinea Muench.). 
Oak, White (Quercus alba Linn.). 
CLASS II: SPECIES THAT ARE FAVORED FOOD OF THE GIPSY-MOTH LARV AFTER THE 
EARLIER LARVAL STAGES. 
Chestnut (Castanea dentata [Marsh.] Borkh.). 
Hemlock (7'suga canadensis [Linn.] Carr.). 
Pine, Pitch (Pinus rigida Mill.). 
Pine, White (Pinus strobus Linn.). 
CLASS III: SPECIES THAT ARE NOT PARTICULARLY FAVORED, BUT UPON WHICH A 
SMALL PROPORTION OF THE GIPSY-MOTH LARVA MAY DEVELOP. 
Maple, Red (Acer rubrum Linn.). 
Maple, Sugar (Acer saccharum Marsh.). 
CLASS IV: SPECIES THAT ARE UNFAVORED FOOD OF THE GIPSY-MOTH LARVA. 
Ash, White (Fraxinus americana Linn.). 
Cedar, Red (Juniperus virginiana Linn.). 
Cedar, White (Chamaecyparis thyoides [Linn.] B. S. P.). 
Chief silvical characteristics of controlling trees of the white-pine region. 
Gipsy- Power of abundant reproduction— 
moth aa 
caterpillar is aap iMhy KD | 2 er cleranes 5. Rapid growth. 
food : ; sup ceed 4. By sprouts or 
class. aah ; by root suckers. 
1 Ea ee Nae PAGTOGIA BABS Sh ar Bed te ene mona tien IASON assy ses asee INSDOn is Rs ae Aspen. 
Aspen, Largetooth!............-. Aece Largetooth| Aspen, Largetooth SDE Large 
tooth. - 
= Ae Cia RO ge TB CO CHE a aaa eerie 1 saree y yes Hibs OGG Wiegate sam Sayan 
BinchiiGraiy sewn ales ean eaten Birch, Gray...--.- Birch, Gray-.....- Birch, Gray. 
Oak, yey ahaa eoled Pogues Om i tg PE Wl a Se USNS Ue Oak, Scrub... ...- 
NUS AUC Wale hae LEAL NM TSU ese Oe ec RN A ee NVA eta Nee Oak, IBlacksa eae. 
RPT eevee MNS D say [peat te ARAN Mas COANE RO Oak, Redes ea 
SSAA at asta a COD WeBpaT Auten ee ae ace NC re tL Cul ake. SCARLetn cn aee 
RA a nU Rar CAB EEA Ae Ke Loca a od OM mean 2 pala Sale ae Oak, Wiltitesaise: 
1 Uae a ae (nV SNe] 5 Ob ees ey steep Pet te eM a a ea a Chestnuts eee Chestnut. 
Hemlock.......... J Koya Kole) teats le ie ere aie CMe real lai es ids a ee 
Pine Pat Chiseie Verse ee ewe PINON EGC Heese te |e eve Ege oa eat 
Pine, White_..... IEA) WNMTUHS) | MERAY \WMlonieye 6 OMe Cae ewe Pine, White. 
FOTIA ease So PIU I oVKeys 1 eek basmati He ee a US er CR eee Maple, Red....... 
Maple, Sugar....-| Maple,Sugar]...-.. SDR eR at Sea SLCC Ta en UOC 
AINA Ue Sa PAST RWilad sc ss] er haem ews .| Ash, White....... Ash, White....... Ash, White. 
(CCIE Te DEY s%0 Lee ey as bape ce eyes abe Ralf pre eal Ue nha gene SRM a REN EIA Le CA eV ER 
WedarehWihiteisee rs Bees tenon tiara ele are Ue ie aie Li Aa eee Da 
