Use and Care Manual
Temperature Inversions
If applying at wind speeds less than 3 mph, the applicator must determine if: a) con-
ditions of temperature inversion exist, or b) stable atmospheric conditions exist at or
below nozzle height. Do not make applications into areas of temperature inversions
or stable atmospheric conditions.
Susceptible Plants
Do not apply under circumstances where spray drift may occur to food, forage, or
other plantings that might be damaged or crops thereof rendered unt for sale, use or
consumption. Susceptible crops include, but are not limited to, cotton, okra, owers,
fruit trees, grapes (in growing stage), fruit trees (foliage), soybeans (vegetative stage),
ornamentals, sunowers, tomatoes, beans, and other vegetables, or tobacco. Small
amounts of spray drift that may not be visible may injure susceptible broadleaf plants.
Other State and Local Requirements
Applicators must follow all state and local pesticide drift requirements regarding
application of 2,4-D herbicides. Where states have more stringent regulations, they
must be observed.
Equipment
All aerial and ground application equipment must be properly maintained and
calibrated using appropriate carriers or surrogates.
Aerial Application
The boom length must not exceed 75% of the wingspan or 90% of the rotor blade
diameter.
Release spray at the lowest height consistent with efcacy and ight safety. Do not
release spray at a height greater than 10 feet above the crop canopy unless a greater
height is required for aircraft safety. This requirement does not apply to forestry or
rights-of-way applications.
When applications are made with a crosswind, the swath will be displaced down-
wind. The applicator must compensate for this by adjusting the path of the aircraft
upwind.