Vol. 15—1961 - NorthEastern Weed Science Society

436.
The recommended materials for use in stem· foliage sprays are the low
volatile esters or amine salt formulations of 2,4-D plus 2,4,5-T at 6 to 8 Ibs .
combined acid equivalent or 2,4,5-T alone at 4 to 6 Ibs. acid equivalent per
100 gallons of spray in water. These herbicides will not destroy sedges and
grasses.
stem-foliage sprays are most effective when applied during the
early summer. but the resulting brown-out is pronounced over a longer period.
The preferred practice fram the aesthetic standpoint is to apply stem· foliage
sprays fram August to early September, just before natural autumn coloration
begins. At this time, brown-out by foliage sprays will be much less
obJectionable.
For maximumkill, foliage sprays should wet stems of foliage to
run down. Desirable shrubs should not be sprayed. Special precautions
should be taken to avoid hazards of volatility and drift (See Bulletin 624,
P. 9). On roadsides adjacent to susceptible ornamental plants or crops,
stem-foliage sprays are recommended only with nonvolatile materials such as
ammoniumsulfamate or aminotriazole. In these areas, however, baaal or stump
treatments should be considered because ammoniumsulfamate or amino triazole
compounds are nonselective and kill all vegetation including grasses causing
unsightly brown -out , For a list of desirable plants native to Connecticut and
the tolerance of various plants to foliage sprays of 2,4-D and 2,4,5-T, see
Bulletin 624
D. (rther Methods
Fenuron pellets are not recommended for use along roadsides because
desirable trees and shrubs with roots growing into the treated areas will be
killed or injured.
Recommendations for the use of Herbicides along Connecticut
Town Roadsides prepared by the following organizations under
The Connecticut Shade Tree Committee ­
The Connecticut Agricultural Experiment Station
The Connecticut Botanical Society
The Connecticut Coo~erative Extension Service
HJC:nam University of Connecticut
7/7/rpO The Connecticut Light and Power Company
The Connecticut Park and Forest Association
The Connecticut Board of Fisheries and Game
The Connecticut State Highway Department
The Hartford Electric Light Company
The Southern New England Telephone Company