Vol. 16—1962 - NorthEastern Weed Science Society

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A Comparative Study of the AppUoatlon of
Three Weed1c1des, Kurosal G, Kurosal 5L
and a 2, 4-~E.~er to Three ~e~ 1n
Long Pond, Dutc~,ss County, Npw ~ork.
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435
Made~ene E. P1eroe, Vas,ar College,Poug~eeps1e,'New York.
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The purpose of th1s stu4Y.was to oomp~e the results of I
the applioat10n of three w.~4191des upont.b,Jjee, separate plots,
The weed1c1des were Kurosal G,Kurosal 5L, .~da 2, 4-D Ester,
All were app11ed at the same concentration of act1ve 1ngred1ents,
2.2 ppm. In the early SUl11m"1'."frequentobIl,Fv,at10ns were made
and records lteptnot onlYct, "tAe effect up0ltthe pondweeda, b.t
also upon nekton, plankton".~ benthic or.l.ms. The duration
of th1s study was from May jl ,~ October 4;~ +96~.
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I w1sh to thank Mr. warr-~ ~oKeon, alld;~ Kenneth W10h Qt
the Poughkeeps1e otfice ort~! ,Ne'liYork 5,ta~ Conserva t10n ~,
partmen t for the1;r .haLp 1n14h; ;f'1eld. Mr. 9.!tto Johnson again
gave the use ot his boats tp.r'r~he season. :1)oW'Chemical Company
suppl1ed the produots wh1ch wWe being stud~ed;and Vassar
College provided a small e;~,ant tor oovering:.tudent assistance
and transportat,1onexpenses.:; ,,','
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Cond1tions in Long Pond have been oal"efJ1J.ly descr1bed 1n detall
1n prev10us papers. (~1'rce1958, 195~f 1960, 1961)·
Three exper1mental areas wf#'e~ staked ou t , , ,11'jo·~of" these were ],0­
ca ted wi th1n the shallow lj,ttoi'al zone (l ..