CONTROL OF GIPSY MOTH BY FOREST MANAGEMENT. 31 
The Class III trees (not particularly favored food) will also be 
favored in the first cutting. On this lot these were only a few red 
maple and pignut hickory. | 
The Class IV trees (unfavored, food) will not be cut, even if de- 
fective or suppressed. On this lot they were white ash. 
In a stand as dense as this (500 trees per acre) about 60 per cent 
of the total number present should be removed. The result upon the 
actual stand now under consideration, of following either of the two . 
plans of cutting proposed, appears clearly in the following table: 
Stand and cutting table, Dover, Mass. Mixed oak stand, four-tenths white oak. 
Number per acre left under 
Original stand. two plans proposed. 
\2. Gradual conver- 
Trees which control if in sufficient : sion—successive 
SS Trees which es al, cuttings. 
control on Other ae N umber sion—one | 
esau! cies present. | per acre. |" Gittins 
ae F Second 
(mow). First (in 5 to 10 
(mow) years) 
Class I: 
RC CUO a eye Ld eae REGO aera hee Bars 220T Re aa Rs 1S0R eee 
IBS Oa Ae aba ise at eh en IBlackoakies | esa Me Ch ie SO ie Pa Ae 36 eee 
ATAU ODN AS) Copel cas MES I ST a OE it ee Wilt exo ales) | eres cies MOS ea ene ee P petal ean Sees 
Garay rn CHa BSN eel rates capa ereed ale aie Hey Gray birch.. 1 eae Pa ee cated (eR eyed 2b Be false 
Class IT: Ry 
TARRY ECEN | OW 0 SEARS i MAU RI Le White pine. . 17 17 17 17 
Class III: 
TRReXO LA cae) 0) Kp ig As URE PONG Ph A ete | PS ae CR Red maple... Dileaee ese 2 2 
Hickory..... Si sceS ees oe 2 2 
Class IV: 
SVWVAnT LOMAS ar deeh be Mie eee ad Dis tree Nhe Me White ash... Rel sees asoee 3 3 
510 | 17/220 24 
The lot should be planted at once with some moth-resistant species. 
Red or white pine, or a mixture of both, may be used, 1,000 to the 
acre, with entire confidence. 
The site as a whole is too dry for white ash, but a few, 25 or 50, 
could be planted: at the lowest part of the lot with benefit to its 
eventual moth-resistant character. 
Cleanings will be necessary for at least five years, as in the case 
of clear cutting. (See p. 29.) | 
The second cutting should be made just as soon as the trees planted 
are established and have gained a decisive lead over the sprouts from 
stumps of trees cut. This would be not less than five years after the 
first cutting. If it were delayed until 10 years after, the planted 
trees would probably be secure against being overtopped by sprouts 
from the second cutting. If cut after five years, a cleaning in the 
second and another in the fourth year would probably be necessary. 
The second cutting should remove all remaining Class I trees of the 
