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Aliette Fungicide Bayer CropScience



Aliette® is a fully systemic fungicide that allows the plant to build its own defense against disease. It moves up and down within the plant to protect new growth between applications. Aliette is an essential fungicide for lettuce, onion and ginseng growers and is formulated as a water dispersible granule.

Product Summary


Product Type

  • Fungicide


Diseases Controlled

Diseases Controlled (Top 3)

Diseases Supressed

Diseases Suppressed (Top 3)

  • Anthracnose Fruit Rot
  • Phomopsis Canker
  • White Rust
Groups and Active Ingredients

Groups and Active Ingredients

  • Fosetyl AL Group P07
Formulation Type

Formulation Type

  • Wettable Granules


  • Available in 2.26 kg foil-lined bags

Application Tips


  • Group P07 fungicide
  • Fully systemic fungicide rapidly absorbed by roots and leaves, allowing the plant to build its own defense against disease
  • Moves both up and down inside the plant to protect new growth between treatments
  • Complex mode of action helps avoid resistance development
  • Enhances the plant’s own ability to fight disease by inducing an early warning and rapid response system in the plant, boosting the plant’s own defense system
  • Application flexibility – can be applied multiple times in many crops


Rates and Timing

Crops Diseases Rates Application Pre-Harvest Intervals (days) Max Applications Re-Entry Intervals
Apple Blister spot1 2 kg/ha
(810 g/ac.)
Foliar: Begin application at petal fall repeating at 7 day intervals 30 3 When dry
Crown and root rot
(Phytophthora spp.)
3-5 kg/ha
(1.2-2 kg/ac.)
Foliar: Treat from tight cluster to pink when there is sufficient leaf area present to take up the spray. Treat again approximately 6 weeks later. Treat again in the fall soon after harvest.
Standard planting up to 500 trees/ha: 10 g/tree High density planting (> 500 trees/ha): 5 to 10 g/tree Drench: Make the first application in spring anytime after silver tip and again in early fall 2
Belgian endive2 Phytophthora root rot 15 g/m2 Post-Harvest:
Apply 1 direct spray application 7 days after harvest of roots, right before start of forcing period, at 15 g/m2 in 4 L of water
21 between application and sale 1
Brassica head and stem vegetables (Crop Group 5-13) and brassica leafy vegetables (Crop Group 4-13) Downy mildew 2.25-3.125 kg/ha
(0.91-1.25 kg/ac.)
When conditions favour disease development 7 5 12 hours
Ginseng Phytophthora, foliar and root rot 5.5 kg/ha
(2.2 kg/ac.)
Make first application at full emergence. Repeat once between full emergence and seed set if environmental conditions require it. Apply again at seed set, once between seed set and pre-senescence (if required), and a final application at pre-senescence. 31 5 When dry
Lettuce Downy mildew 2.8 kg/ha
(1.1 kg/ac.)
When conditions favour disease development 7 12 hours
Downy mildew
Purple blotch
Rutabaga Downy mildew 2.25-3.125 kg/ha
(0.91-1.25 kg/ac.)
(red, black)
Phytophthora root rot 5.5 kg/ha
(2.23 kg/ac.)
Spring Applications: Apply the first spray after bud break at 7 cm new growth and then again 3-4 weeks later

Fall Applications: Apply when conditions favour disease development (high soil moisture and cool temperatures) and then repeat if necessary 3-4 weeks later. The last fall application should be made at least 30 days prior to leaf drop.
60 4 (2 in spring and 2 in fall) 24 hours
Cranberry When conditions become favourable for disease development 3 4 12 hours
Strawberry Red stele 5.6 kg/ha
(2.27 kg/ac.)
Begin applications when plants start active growth. Repeat at 30-60 day intervals. 30 24 hours
Highbush blueberry Anthracnose fruit rot Begin applications at approximately the pink bud stage and continue as needed on a 14-21 day interval 1
Phomopsis canker
Phytophthora root rot For spring applications, apply the first spray when there is 7 cm of new growth and continue on a 14-21 day interval
Grape Downy mildew 3.75 kg/ha
(1.52 kg/ac.)
Apply when conditions become favourable for disease development. Repeat as needed every 7-14 days. 15 7 6 days
Spinach Downy mildew (suppression) 3.38-4.5 kg/ha
(1.37-1.8 kg/ac.)
Apply when conditions become favourable for disease development. Repeat as needed every 7 days. 3 12 hours
White rust

1 Only for Mutsu, Jonagold and Golden Delicious varieties
2 For use on roots for Belgian endive (chicon) production only


Application Tips

  • Rainfast in 1 hour
  • Avoid applying in very early spring before leaves emerge or in fall during leaf senescence
  • Apply as a preventive treatment during conditions conducive to disease development
  • There is a risk of plant toxicity when mixing Aliette with copper products. Apply copper products separately.

Active Ingredients

Fosetyl AL Group P07

Resistance Management

Alternate the use of Aliette with other fungicides having a different mode of action.


  • Apples
  • Belgian endive
  • Blackberries
  • Bok Choy
  • Broccoli
  • Broccoli raab
  • Brussel Sprouts
  • Cabbage
  • Cauliflower
  • Cavalo
  • Chinese broccoli
  • Chinese Cabbage
  • Chinese Mustard Cabbage
  • Collards
  • Cranberries
  • Fruit
  • Ginseng
  • Grapes
  • Highbush Blueberries
  • Kale
  • Kohlrabi
  • Lettuce
  • Mizuna
  • Mustard greens
  • Mustard spinach
  • Onions
  • Rape greens
  • Raspberries
  • Rutabaga
  • Spinach
  • Strawberries
  • Tobacco

Diseases Controlled

Anthracnose Fruit Rot
Blister spot
Blue mould
Downy mildew
Phytophthora crown rot
Phytophthora root rot
Purple blotch
Red stele

Diseases Suppressed

Phomopsis Canker
White Rust

Province of Registration

British Columbia
New Brunswick
Northwest Territories
Nova Scotia
Prince Edward Island