Vol. 15—1961 - NorthEastern Weed Science Society

415.
THEAPPLICATIONOF THETRIAZINEHERBICIDES
FOR INDUSTRIALWEEDCONTROL
By
Leo Miles 1
INTRODUCTION
The purpose of this paper is to pass on information based
on broad practical field experience, as to how the triazine
herbicides, Simazine and Atrazine, can be most effectively and
economically used for the control of weeds on industrial sites,
alone or in combination with other herbicides. Weed problems on
industrial sites are in some cases' difficult to control because of
complicating factors found in the soil, as well as the ,sum'l{al
and further propagation of difficult-to-control species brought
about by preVious herbicide treatments. It is in these types of
, sit.uat.ions a careful, appraisal of the weed problem is necessary in
order to use the correct. herbicide or a combination of herbicides
to control the weed problem.
APPLICATIONOF SIMAZINETO
INDUSTRIALWEEDPROBIEMS
Simazine is a soil sterilant type herbicide of relatively
low water solubility, With long residual action recommended
primarily for pre-emergence application. For best results, fall or
early spring applicat.ions are recommended. Simazine is effectiVe
in controlling, a wide range of non-woody annual and perennial
broadleaf weeds and grasses at dosage rates ranging from 10 - 30
Lbs , per acre. Simazine has been applied adj acent to shrubs and
trees by highway departroonts with no reported injury to these
woody plant species. Simazine applied to soil has very little
lateral movement proViding the soil it was applied to has not been
moved.' Simazine has in general been successfully applied to sloping
ground and fence lines running parallel to sloping ground with 11t.tle
or no runoff problem~
APPUC~IOO ~~~INETO
INDUSTRIALWEEDPROBLEMS
Atrazine
is recommended for pre or early' post-emergence
1 - Geigy Agricultural Chemicals, Ardsley, NeW'York