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Stop late blight and downy mildew and control spores with new liquid Forum.

  • Highly systemic tank-mix partner for control of late blight and downy mildew
  • Anti-sporulant activity kills spores and stops the spread of disease
  • Easy-to-use liquid formulation

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How it Works

  • ForumTM delivers effective control of devastating diseases such as late blight and downy mildew
  • Controls disease by rupturing fungal cell walls.
  • The highly-systemic, anti-sporulant activity stops the development of disease and prevents infection from spreading.

Registered crops

  • Brassica
  • Bulb vegetables
  • Cucurbits
  • Fruiting vegetables
  • Grapes
  • Hops
  • Leafy vegetables
  • Potatoes

When to Apply

Crop Disease Timing Pre-Harvest Interval (Days)
Brassica vegetables Downy mildew (Peronospora parasitica) – Suppression only Begin applications prior to disease development. Continue on a 7 day interval. 7
Bulb vegetables Downy mildew (Peronospora destructor) – Suppression only Begin applications prior to disease development. Continue on a 5-7 day interval. Use the shorter interval when disease pressure is high. 0
Cucurbit vegetables Downy mildew (Pseudoperonospora cubensis) – Suppression only Begin applications prior to disease development. Continue on a 5-10 day interval. Use the shorter interval when disease pressure is high. 2
Fruiting vegetables Late blight (Phytophthora infestans) Begin applications prior to disease development. Continue on a 5-10 day interval, using the shorter interval when disease pressure is high or has been detected in the area. 0
Grapes Downy mildew (Plasmopara viticola) Begin applications prior to disease development. Continue on a 7-10 day interval. Use the shorter interval when disease pressure is high. 14
Hops Downy mildew (Pseudoperonospora humuli) – Suppression only Begin applications prior to disease development. Continue on a 7-10 day interval. Use the shorter interval when disease pressure is high. 7
Leafy vegetables Downy mildew (Bremia lactucae, Peronospora spp.) – Suppression only Begin applications prior to disease development. Continue on a 5-10 day interval. Use the shorter interval when disease pressure is high. 0
Potatoes Late blight (Phytophthora infestans)
Tuber blight (Phytophthora infestans) – Suppression only
Begin applications prior to disease development or when first symptoms appear in field on nearby fields. Continue on a 5-10 day interval. Use the shorter interval when disease pressure is high. 4

How Much to Apply

Crop Disease Application rate Notes
Brassicas Downy mildew (Peronspora parasitica) – Suppression only 450 mL/ha (182mL/ac) Must be tank mixed with a registered fungicide active against downy mildew.
Bulb vegetables Downy mildew (Peronspora destructor) – Suppression only 450 mL/ha (182mL/ac) Must be tank mixed with a registered fungicide active against downy mildew.
Cucurbits Downy mildew (Pseudoperonospora cubensis) – Suppression only 450 mL/ha (182mL/ac) Must be tank mixed with a registered fungicide active against downy mildew.
Fruiting vegetables Late blight (Phytophthora infestans) 450 mL/ha (182mL/ac) Must be tank mixed with a registered fungicide active against late blight.
Grapes Downy mildew (Plasmopara viticola) 450 mL/ha (182mL/ac) Must be tank mixed with a registered fungicide active against downy mildew.
Hops Downy mildew (Pseudoperonospora humuli) – Suppression only 450 mL/ha (182mL/ac) Must be tank mixed with a registered fungicide active against downy mildew.
Leafy vegetables Downy mildew (Bremia lactucae) – Suppression only 450 mL/ha (182mL/ac) Must be tank mixed with a registered fungicide active against downy mildew.
Potatoes Tuber blight (Phytophthora infestans) – Suppression only
Late blight (Phytophthora infestans)
450 mL/ha (182mL/ac) Must be tank mixed with one of Polyram® DF, Dithane® DG Rainshield® or Bravo® 500.

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Product Specifications

Fungicide group: 40
Active Ingredient: Dimethomorph
Size (units x size): 2 x 4.5 L
Product Article #: 59014345
PCP #: 32326
Ontario Classification #: 3
Gross Weight of Package: 11.3
Units/Pallet: 24 cases / 48 jugs
PTS - T/L (48 foot): 24
Warehouse Stack Height: 3
Heated Storage: Yes
Flash Point: N/A
NFC Class: N/R
TDG Information: Not Regulated

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