DuPont Authentication Velpar L H - 63377 - Manual (Page 9)

IMPORTANT PRECAUTIONS - PINEAPPLE
• Use the lower rates on coarse-textured soils or in areas
where rainfall exceeds 65" per year.
• Use the higher rates on fine-textured soils or in areas
where rainfall is less than 65" per year.
• Do not exceed 1.8 gal VELPAR L per acre per crop.
• Do not apply VELPAR L within 181 days of harvest.
VELPAR L is recommended for selective weed control in
sugarcane except in the State of Florida.
APPLICATION TIMING
- USE RATES - MIXING INSTRUCTIONS
Apply a single treatment of VELPAR L per year using a
fixed-boom sprayer and a minimum of 25 gal of spray per
acre unless otherwise directed.
HAWAII
Apply VELPAR L pre- or postemergence at the following
rates for the indicated soil texture:
VELPAR L (Pt/Acre)
Soil Texture (Plus surfactant
Description 0.25% by volume)
Coarse
Sand, loamy sand, sandy loam 1.8–3.5
Medium
Loam, silt loam, silty clay loam 1.8–7.0
Fine
Clay, gray hydromorphic clay 7.0–14.5
Use the higher levels of the recommended dosage ranges on
soils high in organic matter. Do not apply more than twice
the highest recommended rate for the indicated soil texture
per crop (18–24 months).
A surfactant is recommended for all uses.
For preemergence use only, VELPAR L may be applied
with aerial equipment using at least 10 gal of spray per acre.
For spot treatments of emerged weeds, VELPAR L may be
applied with a knapsack sprayer in concentrations of 1.8–14
pt per 100 gal of water. Apply a sufficient volume to
thoroughly wet weed foliage, but do not exceed 40 gal of
spray per treated acre. Use the lower concentrations on
coarse-textured soils that are low in organic matter, and use
the higher concentrations on fine-textured soils that are high
in organic matter.
LOUISIANA
Apply 1.8–3.5 pt of VELPAR L per acre broadcast in the
fall before sugarcane emerges or in the spring before active
cane tillering begins. Fall treatments of 1.8–3 pt per acre
may be followed by a spring treatment of 1.8–3 pt per acre.
Do not apply more than 6 pt per year. Use the higher levels
of the recommended dosage range on fine-textured soils.
PUERTO RICO
For preemergence treatments, apply 0.9–1.8 pt of VELPAR L
per acre.
For postemergence treatments, apply 0.9–1.8 pt of VELPAR L
per acre to weeds after they have emerged. Use the lower
rates on coarse-textured soils and the higher rates on fine-
textured soils (high in clay or organic matter). Each ratoon
may receive up to 1.8 pt of VELPAR L per acre.
For spot treatment of emerged weeds, VELPAR L may be
applied with a knapsack sprayer in concentrations of
0.9–1.8 pt per 100 gal of water. Apply a sufficient volume to
wet the weed foliage. Do not exceed 100 gal of spray per
treated acre. Use the lower concentration on coarse-textured
soils and the higher concentration on fine-textured soils.
Note: Since it is difficult to calibrate “spot” knapsack
applications, extra care must be taken not to exceed the rate
equivalent of the maximum of 1.8 pt VELPAR L per acre.
Do not apply more than 3.6 pt of VELPAR L per acre per
crop.
TEXAS
Apply 1.8–7 pt of VELPAR L per acre. On plant cane, apply
the herbicide before the cane emerges or as a directed layby
treatment. On stubble cane, apply VELPAR L preemergence
(up to the 3-leaf stage) or as a directed layby treatment. A
pre- or early postemergence treatment may be followed by a
layby treatment, provided at least 60 days have elapsed and
3" of rainfall or sprinkler irrigation have occurred since the
first treatment.
Do not apply more than 7 pt of VELPAR L per acre per crop.
Use the following rates for the soil texture:
Soil Texture VELPAR L (Pt/Acre)
Description Preemergence + Layby
Coarse*
Sandy loam 1.8 1.8
Medium
Loam, silt loam 2.7 2.7
Fine
Clay loam 3.5 3.5
* With at least 2% organic matter
On dormant cane, a surfactant may be added to the spray
mixture to increase control of emerged weeds.
SUGARCANE
7