~ 
CONTROL OF GIPSY MOTH BY FOREST MANAGEMENT. 45 
Stand and cutting table, North Berwick, Me. Northern hardwoods stand with no 
white oak. 
Original stand. Number 
ROU AA UAE eI ee calach urereteunclt Si. Laat DE TACKE 
Trees which control if in sufficient numbers.! ir ae — {ort aie 
rees whic : umber | cutting 
control on clues Species per described 
this lot. Pp ; acre. on p. 44. 
Class I: 
TRYEG L Cava ec csp gl eo oi SU OU ge a Ae SI ee A fe a Redioakwess sar. 7A Ses eNOS 
Marg e=COOCM MAS PONY ssa ke ee meena elves AS aiateele ines aisle Large-tooth aspen. PA hae Wd eas 
AB YeXS OS 13 aisie al gah nay RNR RD ey I ed Le A BXsYe¥ el ola APaeanen [mC a Ne Ie ae 182 77 
Pee sei Paper birch......- 7 3 
AUNT ERC sana eed Basswood........- 5 2 
Class IT: 
SET Trt OC Kersey elyar vas ae ALIN ela gym cp a Te mloecksa snes hese Se SE A ORL 16 14 
Class IIT: 
VEX ODA na¥ey 0) Kee M NE a SS ayaa at WOU Red maplowaieee enn sake paces 33 19 
Sugarmaplos re ares ec seccatecisistelssiace oe cere SUSAT MADE |Peae se ee eea 56 29 
RE Eee keene Gee Yellow birch...... 11 7 
MAS LE ERR Mn AU 2 Black birch. ....-- 16 9 
avn Avo lim eases see (2) (2) 
IETOEN DEAT! | Se we aaa or enieres ee 66 29 
Class IV: 
TNE) eH SNES Noy a eae Ae TI RN oe AS ee one AYATALOTRACeye ol ATES fee ep ah Rs Tr Pe Ie a 5 5 
ERM SN 1 iBlacktashiaeeseesas (2) Pree ies Ci He 
406 194 
-1 A list of controlling trees for the northern hardwoods region would differ from this one, prepared for 
the white-pine region. See hornbeam above. 
2 Less than one tree per acre. 
For effective gipsy-moth control cleanings will be necessary for at 
least five years (see p. 29), but the expense may be greatly reduced by 
confining these to the sprouts of all Class I trees cut, excepting the 
beech, on which, as already stated, the gipsy moth is not likely to 
reproduce normally, unless beech is in mixture with other favored 
species. ; 
Another method of controlling sprouts is to turn cattle into a lot 
to pasture. The practice of pasturing cattle in woodlots is followed 
by some owners wholly apart from any silvicultural considerations. 
It had been done on the lot now under discussion, with the result 
that it was almost entirely free of undergrowth of all kinds. Forest- 
ers condemn the practice, for cattle do not always discriminate be- 
tween sprouts and seedlings or between valuable and worthless 
species, and the result is a loss of young growth desirable in any form 
of management and essential to the success of stands managed under 
the selection system. In stands containing a very large percentage of 
trees which are favored food of the gipsy-moth caterpillars, which it 
is desired to replace by planting, carefully regulated pasturing by 
cattle or by goats might control the hardwood sprouts, if done for 
several successive seasons after clear cutting and before planting, 
but there is danger of exposing the ground so much that it would dry 
out and entail a large loss among the trees when planted. It is not 
recommended. If done it should be on a small scale, experimentally. 
