Bonide Copper Dust - Manual (Page 7)

When
to Apply
Make
initial
application
when disease
first
threatens
and reapply every 7-14 days, as needed. Use on yellow varieties may cause discoloration.
To avoid,
pick before spraying. Make initial application
between silver-tip and green-
tip stage. NOTE: Phytotoxicity may occur from late application. Discontinue use when green-tip is ½ inch. Apply either in early spring or in fall after harvest each year
. Do not use if soil pH
is below 5.5 or
copper toxicity
may result.
Make initial application when plants are first established.
Reapply every 7 days, as needed.
Mak
e
ini
tial
appl
ication
prior
to
dev
elopment
of
disease symptoms.
Crop Carrots Celery & Celeriac Eggplant
Amount* 2 – 8¾ oz. Do not exceed 2.8 LB of product (1¾ oz. metallic copper
equivalent)
per
1000 sq. ft. per year
.
2 – 8¾ oz. Do not exceed 3 LB of product (1.8 oz. metallic copper
equivalent)
per
1000 sq. ft. per year
.
2 – 6½ oz. Do not exceed 2.2 LB of product (1.3 oz. metallic copper
equivalent)
per
1000 sq. ft. per year
.
Disease Alternaria leaf spot, Cercospora leaf spot, Downy mildew Fireblight Crown
or collar
rot (Phytophthora cactorum) Bacterial blight, Cercospora early blight, Septoria late blight, leaf spot Alternaria blight, Anthracnose, Phomopsis, downy mildew
, leaf spot