Vol. 16—1962 - NorthEastern Weed Science Society

406
SUMIIARY or SBYlRALAQttATBOL
,'fUATllBBtS IN NEWJBRSEYWATER
by
R. L. LINDABERRY
PENNSALT alBllICALS CORPORATION
'This disCus.ion deals with a summary of some results of
cOIIlIIlercial appliCation. on .eveHJ. different lakes within potable . 'i·
wetersbed areas in. Northern New Jersey. 1'I* Jrrol l.o\\t' ;DI · are the
result.e, ob.ervations-:·. .
I. COZy LAKE -
CoDdlUons: ~ tetal lake area is 30 acres with a maximum
depth td tt teet and .. j avera.e of 4 feet, with a total of 100
acre feet. The illejor .... d .pecies was Najas mlnor, wlth minor
species ceratophyllum.6Jljo, Potamogeton criapu., Nuphar sp., Blcdea
canadenai., green filamentous algae.
Application: An application wa. lIIade on llay 22, 1961, by
Roy Younger, Conaul t inc Biolccists Inc., Philadelphia, Penn.ylvania,
on Cozy Lake. The lake waa drawn dOWll6 lnches. OI1e
appllcation waa made of 227 ,allons of AQUATIOLfor a total
concentration of 2 ppm.
Resuit.r Excell.n~10Il11l0:l. of .U ·'.xcept Elodea
and al,ae. In mid-Septe.ber Najas minor had commenced to
regrOW il1 ... 11 patches.· Elodea canaden.~':"!!I!~"1Itar~.d.totake' ..
over one end of the lake. other species were not present. An
alr .. ·.~trol t".t_Dt:!~f,':9,,5 ppm euso wa... de to control
4
algae bloolll.
II.
Condi tiona: The total lake area is 18 acres with a D18ximumdepth,oflO:r.et
.anIL_e-liverage depth of 7.5 feet. Tbs major
weed speciea was Potamoreton cr1spus, with acattered Myriophyllum
sp. and Blodea sp ••
Application: Two treatments were applied as follows: OI1eon
June 13, 1961, to the north dde of the lake and the other on June 23,
1961, to the aouth side of the lake by W. C. Hall, Chemtree Corporation,
Rarriman, New York. The lake was drawn down 12 inches,
and a total of 225 gallona waa applied in a aplit application of
112 gallons for a 1.5 ppm treatment (in treated area), with onehalf
of the lake being treated each time.