Vol. 16—1962 - NorthEastern Weed Science Society

6
"' .. gt StatusofMHtic Weed Centro",nd Research
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That brief hhtRry
',';
brillg.g~,o tbepr ... nt WO public lnterest ln
aquat:Lc weed control and rue arch ..... to be at flow t:Lde and to be .urglng
higher. Ona f,ndf,catlon hthe f,ct thae 25 papen' Oft aquatic weed. were pre­
•• nte4ae the. We'"SoCgty of _,1c.~ogr.. 10 a.cellber 1961 .s comptNd
wlth 11 ,.pe,.s"la19~. 13 In.195$, and 7 in 1956. Aaotberlndlcat:Lon 1., the
factthat.16$t,f~e~~lc\lltur.1 :.... rf.lllent St.tte. •• ubmltt.d propo .. la,f.n.
S-ptell1:!er1961 f9f ,ptI;'t1dp.ti~ .1,na reglon.l , .... I'Q!l pzoojecton aquatic
weed reaearcb f~d by Fedeul·,;fUl)d. d•• i.gnat&4 •• the "central Reaeucb
Fund." Four of tbe .. proposals by tbe Al.b .... c.Ufor:nla •. NewYork. and
Nortb Carolina State Experiment Stat:Lons weI" appzooved and funded. Prevloualy
•. only ~ Al.b .... K1.1S~,·.nd Orellon Stolte hperf.lllent St.ti ••
had bten.ctf.'IIe. .,in fuearch·on ,aquaUc wed control.
"'.' . "
The. 38 Se.t,flxper1mentStet~. wblchrepU4.·. to,my q~st1onna1J:'... nt
out in Septelllber 1961zoeported • total r .... rch ..feort on .quatic weed CODtrol
of 10.5 lIIIIl~y.ar... nau&l.J.y•. ~be 31 St.te'"",'" OuIeCoalml.a100e·
reported. total re~ar;ch .ff~t on aquatic weedccnt.t:to1 of 24 _n-y.a:n
amu.1ly.
".,. ~.
The total acreage of aquatic areas treat.d for: control of dlfferent:·
types of .quatic weeds ln 1961 as reported by 10 to 16 State Flsh and a..e
C~1e.ions .in _theutern ,Nor:thcentra1, .nd Sou~rn St.tes were 10,"2
(14) .of f11_Jlteu •• lgae, 33,-808 (10) of otber f_ of algae, 15,373 (16)
ofl'OOted ,sul!meree4weede, 10,5076,(16) of roote4·_ned weeds, and 39.611
(10) of· floa.ting weeds., Wtth the po.e1b1. except¥to of floating weed. dleM
treate4, aX'd. represent only .. U ·fractions of tbe.X'e.s in whlch these
weed. were'X'eporrted to be MdOlol.9robl ....
Re.99Z'ta OIl the .xtentoftr..talent of fant,poadsand drainage ditc:htl'.
for aquaticweedCOlltrol. in ~tIae.. tern. oortQceatoral" and .outhern r'aione
were not suffident in number for.a reliab1 ...... indication. Howewr-,
there appeared to be conslderab1e chemlcal treatment for weed control in
fal'1ll pond. in Nev .Jersey,' Ohio,Soutb Carolina. MWourl, and Teu..Apparently
•. tbe UN of weed..contro1. practices 1n aquade ••• as is not nearly ..• e
extenll-iwin. central., Southen. and Ba.tern Stat •• ; as it is in irrlgatiGn
and drain ... canala oftbe Wee;t. The survey lIleIa~fioMd! earlier (8) .hCMtll.
that 63,448mU ••. of.C/lDala were. tnated for: aqua'tflc weect. and.328.232,,·
acre. of 4itebbAlnk weI'. treated for: weed control 1tI 19,57. These were 54
and 80 percent ,re.,.ct;i vely. of the. total weed-iI1fested areas.
A SU1llll8ry of I'tlp*t. ln ·the questionnaire .urYlY indicates the or., of
preference for chemical and _chanlcal method. of controlllng the different
types of aquatic "..da •• f.OU9WS·,vUh the number:·oI·apeciff.c mentlons' .
shown in parentheees aft;er e~h .. thod:
':!"",:
~ .. copperwlf.te (la).; MdlUD1.r: .. nite,Q) ,carp (2). dlchlOM;(l).
! Rooted 'uWreed:(D094' n. es) -~_ .~te (27), 2,4-Q (24),
. .UYex -(,\2) •• ndotiwll;C .. cbanical ""oct. (2). canale!l!!l
ditsbu) - ·MCh.anl~l. ",thods (7). xylol ;(4), urea (2) ,acro1'1o(2) •
RgoteS !IIIH'!!CI -, 2,4-D (38!).•,;4alapon (22) ..... ~. (16). _chuie.,1
methods (U), 111ve", ,P), 2.4,5-T (5). . :