Vol. 16—1962 - NorthEastern Weed Science Society

sater method ot tree-killing close tb desirable treet.On pure speculation,
in the tace ot doubts from some advisers, an injection method was first trled
with tenuron in september, 1960.,:, A,watery mixture was made up from fenuron
pellets and poured into hatchet gashes in a number of weed trees.
, • ".j'" o':~ .
Since then, about a doz~1:l homemade fo:rms Olttenuron liquids, pastes,
jellies,an4 salves have been made and used durin. r_year 1961. several
aMi ti ves have been' used. These bMre been injectecl~uneath the cambium ~rs
ot several thouae.ndtrees of all rises and types. ,'a.'81m of the project ~s
to de,velop a' one-1no1sion, one-inpct10n quick. metbcl'6,ofl eliminating weed trees
in situations where applications, • ,the ground coul6 epdanger valuable trees.
So far, the results of tbese experiments hue been' highly sa.tisfactory.
"![be influence of the chemical fenuron s~ :tOJ be the same, no I$tter
whether it is introduced into the tree through theJ:!OQ1;a or injected almost
anywhere beneath the cambium layer ot the trunk. However, further time is
needed to, confirm theae results.'",'
Conclusions 1,:"
.rr
lAss tban a1"1'lICt10no1' 0Qli percent of:tb.ule81rable. trees have
been afflicted in tracts Where fenu&'Onhas been used'4lor tree weeding. Of
thesel iIlostwere an],y sUghtly t01ilohed, andexper:tilIllIC* iJ.ndicates that .they
wlll, recoVer:. In other words, with due precaut10nsjJJ*iu non-selective nature
of fenuron, 1snotlul; important danger in its use as ~~st weeder. Most of
the valuabletreesiatfected wereintractswh1chwerllr treated when there ••
snow on the ground:. Apparently tbe snow water. puddJ.e4the chemical away ttom
the'point ot app1icat1on.u;
',':-1 ~" ~)I ;'::
It is believed thatth1s study shows clea!:ly that fenuron pellets,
applied: to the grounll,' constitute ,':usableand value'ld.e'1nstrument for 'the
necell~jweedillgjot,.torests. It., alao suggests.' ev:LcDtncefor further study of
injection' t:reatBIEtnt. '!be .'ord1~, t'orest owner. ~an fIIoW· beeome a silvicide
expert it he learns to, ustlthis' cbell1cal. He needS1IObther equipment except
a pail and a paint marker.
This chemical is not a "treatment" but a "tooL" tor forest use.
Each tree, each plot, each acre, can be approached according to its needs, arod
toward an OY8J;'",;a1J,.d~siSQ "for 'A yal\l~ble susta1ned~iL~ forest.