Fungicides – Foliar Treatment
490
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Application Tips
In potatoes, Kocide 2000 and Parasol WG may be applied with a desiccant at vine kill or alone after vine kill, prior to
harvest to reduce the risk of late blight infection.
How it Works
Copper hydroxide, copper oxychloride and copper sulphate are contact fungicides.
Restrictions
Pre-harvest Interval
:
Do not apply to crops within 1 day of harvest.
Environmental Precautions
Copper-based fungicides are toxic to fish and other aquatic organisms. Keep out of any body of water; fish may be
killed.
Toxicity
Copper-based fungicides have a low to high mammalian toxicity. Copper hydroxide: Acute oral
LD
50
(
rats) = 1,000 - 2,000 mg/kg. Copper oxychloride: Acute oral LD
50
(
rats) = 1,470 mg/kg. Copper sulphate:
Acute oral LD
50
(
rats) = 30 mg/kg.
Storage
Store in a cool, dry, ventilated place, away from feeds and foods.
Curzate 60 DF
Group U
Formulation
Product
Company
Active ingredient
Formulation
Container size
Curzate 60 DF (PCP# 26284)
E.I. duPont Canada Cymoxanil 60%
Dry Flowable
1.8
kg
Crops, Diseases Controlled and Rates
Crops
Diseases controlled
Rate
Staging and specific comments
Potatoes
Late blight
(
Phytophthora infestans
)
Curzate: 0.09 kg/acre
Plus
Manzate DF 0.55 - 0.65 kg/acre
Initial applications should start when local conditions
indicate that late blight is imminent. Make additional
applications at 5 - 7 day intervals. Apply no more than
7
applications per crop. Use higher rate of Manzate DF
under conditions of high disease pressure.
Registered Tank Mixes
Manzate 200 DF.
Application Information
How to Apply
:
Ground application only. Do not apply by air.
Water Volume
:
Ground: 80 - 400 L/acre.
Application Tips
Caution
:
Use Curzate 60 DF only in a tank mix with Manzate DF. Do not use Curzate 60 DF alone.
Do not apply to a potato crop that is suffering from stress as a result of drought, water saturation, low temperatures,
insect infestations, nutrient deficiency or any other factors contributing to a reduction in crop growth.
Copper 53 W/CopperSpray/Coppercide WP/Kocide 2000/Parasol WG  (cont’d)