Vol. 16â1962 - NorthEastern Weed Science Society
Vol. 16â1962 - NorthEastern Weed Science Society Vol. 16â1962 - NorthEastern Weed Science Society
S'QWARXANDCONCWSIONS
417 FENURQlt,A PROMISINGNEWTOOL FOR FORESTRENOVATIONIN THE NOR1'HEAST By Carl. C. ZimmElrID&n* ~.a.wk Tree Farms R.F.D. No.2, Box 180 Laconia, New Hampshire, . 'I'be Northeast has an i~(lreasing trend toward permanent forest I holdings by urban people, who use the houses for sUllllllerretreats, week-end recreation or retirement. They do most of the work on this land themsel'lnes as a spare-time occupation, because. hired labor is. ,e,xpensive even when it I S available. These holdings are mostJ,y less than 1,000 acres, and each tract is gener~ly less than 100 acres. Typically, these are m:i.xedstan's of val~le hardwoods and conifers in which various weed trees shortly predOlllil.nate. Some of the mo:-e serious weed species are aspen, gray birch, swamp maple, wild cherry, andl elm. Cutting these weed trees ~s not satisfactory ~cause re-sprouts frQlt the stumps and roots become an even more severe pro1:llem. 111eanswer to this problem seems to be an ..1nexpensive and simpl, method of selective chemical weeding, involving little investment in mechWcal equipment. Blanket chemical applications either from the air or ground are inadvisable because of possible damage to desizWille forest trees or nearby crops and ornamentals. In three years I experimentation at Blackhawk Farms, fenuron, which is cOllllllercially available only in 25 per cent pellets at the present time, appears to be a promising tool for forest weeding. The Site Blackhawk Farms consists of about 1,000 aqr,es of typical north- • eastern woodland, in six tracts around Gilmanton, N. H., a few miles southeast of Laconia. lUl six tracts Were at one time pU'ts of cultivated farms or pastures, but they have now reverted to forests and brush • The. over-all forestry aim is to develop this .total acreage into an economic sustained-yield tree in unit. The pr~nt program started in 1949. Unt11 1956, the ma.in activity was planting con:lfers in abandoned fields. Cutting was the only methOd used for removius weed trees. * A 50ciolo61st at Harvard University, who treef!U'DIII for an. avocation. 111is project is supported by a grant from the Permanent, ;6cijilnee Fund of the American Academy of Arts and Sciences.
- Page 365 and 366: Table 1. The Effects ofS8veral form
- Page 367 and 368: Table 3. The effects of several for
- Page 369 and 370: 369 Table 5. The effects of sev~ral
- Page 371 and 372: • ~ : .• \ • ' -' ..,,:- ',-"
- Page 373 and 374: Heights of barley were significantl
- Page 375 and 376: Table 2. The effe,cts of s~\I'~ral
- Page 377 and 378: Table 4. 377 The effects of aevel8.
- Page 379 and 380: ,:' A PROGRESSREPORTONCOMIo!ERCIAL
- Page 381 and 382: 4. Undesirable dead stem.,lio not r
- Page 383 and 384: areas under service conditionsa~ va
- Page 385 and 386: We ,prpbablyhave no speeie of g~owt
- Page 387 and 388: control. At the end of the third ye
- Page 389 and 390: initial defoliation was evident lat
- Page 391 and 392: OBJECTIVE In 1958 an experiment was
- Page 393 and 394: Replicates DlO 810 I 2.0 0.5 II 1.5
- Page 395 and 396: DISCUSSION One Year After Applicati
- Page 397 and 398: 1. Button, E.F. Bndwrfg'h~';J .L. ,
- Page 399 and 400: 399 The treatment consisted of appl
- Page 401 and 402: 401 FIELD PROCEDURES Although. the
- Page 403 and 404: 403 In the light of these data it a
- Page 405 and 406: 405 ...·1!MLE I SAMPLECHARACTERIST
- Page 407 and 408: 407 , '.". '.·',',~'l~rL,i;'. "\"
- Page 409 and 410: dltterent l"atespacaoreand"~"at thr
- Page 411 and 412: 411 RESULTS ireatmentettect was det
- Page 413 and 414: , 413 ;. ' "1 ' "':j " • made wit
- Page 415: ( ( . Table 3. Effectiveness on Spe
- Page 419 and 420: There are a number of reaso~ for un
- Page 421 and 422: .n_ots, "'hhin a few months after:
- Page 423 and 424: sater method ot tree-killing close
- Page 425 and 426: Material ~izone is a,mixedf~g.. t w
- Page 427 and 428: 427 On November 16, 1961, at the en
- Page 429 and 430: CHBMI-THINNINGWITH,AIrlINES IN THED
- Page 431 and 432: These tests show once aaaiJithe nee
- Page 433 and 434: Th:Ls ch!~ca1. tx'eatme:n1!_1IhClJ.
- Page 435 and 436: : if.. . ' A Comparative Study of t
- Page 437 and 438: 'j 437 petioles, now elongated,f'or
- Page 439 and 440: Helisoma, Menetus, fhYSa andValvata
- Page 441 and 442: i s. The benth1c populat1Q~ W¥", O
- Page 443 and 444: 443 Eurasian. wa~lfoil a W8t.f~~ ap
- Page 445 and 446: Empb4sis was on testing DOD-volatil
- Page 447 and 448: 447 . , , -. I':'V'est~a.ti
- Page 449 and 450: FIELDOBSERVATIONS UPONESTUARINE ANI
- Page 451 and 452: more than 2 feet. ExceptionalUdes s
- Page 453 and 454: TABLE1. Responseof oysters t~ diffe
- Page 455 and 456: In the'Dundee Creek series. ,one of
- Page 457 and 458: workers. springer (1961) cite8& num
- Page 459 and 460: OBSERVATIONSONTHE OCCURRENCE' ANDPE
- Page 461 and 462: 461 TABLE! Chemical Water QuaU1?::r
- Page 463 and 464: TABLEIII Threshold Taste and Odor C
- Page 465 and 466: (1.1-) Burttschell, R.H. , et al.,
S'QWARXANDCONCWSIONS
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