GGSPro SolutionsDowny Mildew

Downy Mildew

**This is a very difficult disease to control. Consult Griffin's GGSPro Technical Services Department for cultural practices, treatment intervals and rotation strategies.
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71-1130
Adorn 39.5% 1QT VALENT EPA# 59639-141
**Restricted use in NY
Vendor: NUFARM FINANCE BV
UM: EA
Active Ingredient: Fluopicolide
Foliar spray or drench to control downy mildew (spray only), Pythium and Phytophthora on ornamentals in greenhouses and nurseries.
Foliar spray rates: 1/8-1/4 tsp per gal or 2-4 oz per 100 gal.
Drench rate: 1/8-1/2 tsp per 2 gal or 1-4 oz per 100 gal.
The label requires that another fungicide labeled for the same disease be tank mixed with Adorn for all applications. *Do not apply to poinsettias.* May damage open blooms.
*Restricted use pesticide in NY
MOA = 43
REI = 12
71-11352
Aliette 80% 5LB BAYER EPA# 432-890
*Not registered in MI, MT, SD, WY
Vendor: BAYER CROPSCIENCE LP
UM: EA
Active Ingredient: Aluminum Tris (Fosethyl-Al)
Fungicide used as a soil drench and a foliar spray. Controls Pythium, Phytophthora, and downy mildew. Can be used on certain oranmentals in greenhouses, nurseries, and landscapes.
Foliar spray rates: 1 1/4-5 tsp per gal or 1 1/4-5 lb per 100 gal
Drench rates: 6.4-12.8 oz per 00 gal
Do not apply within 14 days of a copper application.
*Not registered in MI, MT, SD, WY
MOA = 33
REI = 12
71-27601
This product is obsolete.
Alude 53.6% 2.5 GAL NUFARM EPA# 55146-83
Vendor: NUFARM FINANCE BV
UM: EA
Active Ingredient: Mono & dibasic sodium, potassium & ammonium phosphites
Alude is a true systemic fungicide labeled for the prevention of Pythium, Phytophthora and downy mildew and others. Labeled for ornamentals and many edible crops in greenhouses, commercial landscapes, nurseries, and turf. Methods of application vary by crop including foliar sprays, soil drenches, soil incorporation and dipping. Alude works by stimulating the natural defenses of plants.
Foliar spray rates: 12/3-4 tsp per gal or 26-64 oz per 100 gal.
Drench rate: 5-10 oz per 100 gal.
*Do not apply within 20 days of a copper application.
MOA = 33
REI = 4
71-1180
Areca 80% 5LB OHP EPA# 53883-320-59807
Vendor: OHP
UM: EA
Active Ingredient: Aluminum tris
WDG formulation fungicide that can be used as a foliar spray or drench. Controls: Pythium, Phytophthora and downy mildew on ornamentals in greenhouses, nurseries and landscapes.
Rates:
Foliar sprays: 1.25-5 tsp per gal or 1.25-5 lb per 100 gal.
Drench rates: 6.4-12.8 per 100 gal.
*Do not apply within 14 days of a copper application.
MOA = 33
REI = 12
71-13301
Cease 1.34% 1 GAL BIOWORKS EPA# 264-1155-68539
**OMRI listed
Vendor: BIOWORKS INC
UM: GAL
Active Ingredient: Bacillus subtilis QST 713 strain
Mycofungicide that provides preventative control of certain fungal and bacterial diseases such as Alternaria, Botrytis, downy mildew, powdery mildew and bacterial diseases including Erwinia, Pseudomonas and Xanthomonas. CEASE is labeled for use on ornamentals and several vegetable crops in greenhouses, interiorscapes, fields and nurseries.
Foliar spray rates: range from 1.25-2.5 oz per gal or 1-2 gal per 100 gal.
CEASE can be used as a soil drench to suppress root rots such as Fusarium, Pythium, Phytophthora and Rhizoctonia.
Drench rate: 32-128 oz per 100 gal.
*OMRI listed
MOA = 44
REI = 4
71-1335
Cease 1.34% 2.5 GAL BIOWORKS EPA# 264-1155-68539
**OMRI listed
Vendor: BIOWORKS INC
UM: EA
Active Ingredient: Bacillus subtilis QST 713 strain
Mycofungicide that provides preventative control of certain fungal and bacterial diseases such as Alternaria, Botrytis, downy mildew, powdery mildew and bacterial diseases including Erwinia, Pseudomonas and Xanthomonas. CEASE is labeled for use on ornamentals and several vegetable crops in greenhouses, interiorscapes, fields and nurseries.
Foliar spray rates: range from 1.25-2.5 oz per gal or 1-2 gal per 100 gal.
CEASE can be used as a soil drench to suppress root rots such as Fusarium, Pythium, Phytophthora and Rhizoctonia.
Drench rate: 32-128 oz per 100 gal.
*OMRI listed
MOA = 44
REI = 4
71-1355
Compass 50% WG 1LB BAYER EPA# 432-1371
*Not registered in HI, NY
Vendor: BAYER CROPSCIENCE LP
UM: EA
Active Ingredient: Trifloxystrobin
Broad spectrum translaminar strobilurin foliar disease control for nursery, greenhouse, and interiorscape use. Compass provides long residual control of many foliar diseases including downy mildew, powdery mildew, Botrytis, rust, black spot and many other leaf spot and blight diseases. *Do not use with an organosilicone surfactant such as Capsil.
Foliar spray rates: 1/5 tsp-2/3 tsp per 2 gal or 1-4 oz per 100 gal.
*Not registered in HI, NY
MOA = 11
REI = 12
71-14801
Fenstop 44.4% 32OZ AGENCY BAYER EPA# 432-1389
**Not registered in NY
Vendor: GOWAN COMPANY
UM: EA
Active Ingredient: Fenamidone
For ornamentals that can be applied as a drench or a spray. Foliar sprays control downy mildew and aerial Phytophthora. Apply as a soil drench for Pythium or Phytophthora of the root.
Foliar spray and drench rates: 1/2-1 tsp per gal or 7-14 oz per 100 gal and it can be re-applied at 28 day intervals if needed.
*Not registered in NY
MOA = 11
REI = 12
71-1520
Fosphite EC 53% 1 GAL JH BIOTECH EPA# 68573-2
Vendor: JH BIOTECH INC
UM: EA
Active Ingredient: Mono & Di-Potassium Salts of Phosphorous Acid
Broad spectrum, systemic fungicide for control of downy mildew, Pythium, Phytophthora and many other diseases in greenhouse and nursery outdoor crops. Many edible crops are on the label. Stimulates natural plant defenses.
Foliar spray rates: 2-4 tsp per gal or 32-64 oz per 100 gal.
Drench rates: 1/2-3/4 tsp per gal or 6-12 oz per 100 gal.
*Do not apply within 20 days of a copper application.
MOA = 33
REI = 4
71-1400
Heritage 50% 1LB AGENCY SYNGENTA EPA# 100-1093
*Restricted use in VT
Vendor: SYNGENTA CROP PROTECTION INC
UM: EA
Active Ingredient: Azoxystrobin
A broad-spectrum, contact and xylem-mobile systemic strobiluron fungicide, labeled for use as a foliar spray or drench on ornamentals as well as many vegetable and herb transplants in greenhouses, container or field-grown crops and other locations. It controls many diseases including Alternaria, Botrytis, Cercospora, downy mildew, powdery mildew, Rhizoctonia, and scab.
Foliar spray rates: 1 tsp per 2.5-5 gal or 1-4 oz per gal 100 gal.
Drench rate: 0.2-0.9 oz per 100 gal.
Do not use with an organosilicone surfactant. Do not use through low volume equipment.
*Restricted use pesticide in VT
MOA = 11
REI = 4
71-1405
Heritage 50% 6LB AGENCY SYNGENTA EPA# 100-1093
*Restricted use in VT
Vendor: SYNGENTA CROP PROTECTION INC
UM: EA
Active Ingredient: Azoxystrobin
A broad-spectrum, contact and xylem-mobile systemic strobiluron fungicide, labeled for use as a foliar spray or drench on ornamentals as well as many vegetable and herb transplants in greenhouses, container or field-grown crops and other locations. It controls many diseases including Alternaria, Botrytis, Cercospora, downy mildew, powdery mildew, Rhizoctonia, and scab.
Foliar spray rates: 1 tsp per 2.5-5 gal or 1-4 oz per gal 100 gal.
Drench rate: 0.2-0.9 oz per 100 gal.
Do not use with an organosilicone surfactant. Do not use through low volume equipment.
*Restricted use pesticide in VT
MOA = 11
REI = 4
71-1655
Micora 23.3% 1QT AGENCY SYNGENTA EPA# 100-1388
*Not registered in HI, SD
Vendor: SYNGENTA CROP PROTECTION INC
UM: EA
Active Ingredient: Mandipropamid
Contact and translaminar systemic fungicide for use in greenhouses, shade structures, lath houses and nurseries. Foliar sprays control downy mildew and aerial Phytophthora. Drench applications control Phytophthora on roots and crowns. Also labeled for use on many vegetable transplants, including control of late blight in tomato and downy mildew in basil.
Foliar spray and drench rates: 1/4-1/2 tsp per gal or 4-8 oz per 100 gal.
Drench volumes per the label.
*Not registered in HI, SD
MOA = 40
REI = 4
71-2880
Milstop 25 LB BIOWORKS EPA# 70870-1-68539
**OMRI listed
Vendor: BIOWORKS INC
UM: EA
Active Ingredient: Potassium bicarbonate
Fast acting broad-spectrum foliar fungicide. Especially effective as a quick knockdown of powdery mildew. Good plant safety, with little visible residue. Formulated with a surfactant. Controls Alternaria, anthracnose, black spot, Botrytis, powdery mildew and others on ornamentals and certain edible crops.
Foliar spray rates: 1-2 Tbls per gal or 2.5-5 lb per 100 gal.
*OMRI Listed
MOA = NC
REI = 1
71-1690
Mural 55% WG 1LB AGENCY SYNGENTA EPA# 100-1479
*Restricted use in NY
*Not registered in CA, HI
Vendor: SYNGENTA CROP PROTECTION INC
UM: EA
Active Ingredient: Azoxystrobin and Solatenol
Combining two active ingredients, this broad-spectrum, translaminar systemic fungicide is labeled for use on many ornamental and edible crops in greenhouses, shade and lath houses, outdoor nurseries and field grown ornamentals. Labeled for both protective and curative treatments for foliar including Alternaria, Botrytis, Cercospora, Colletotrichum, downy mildew, Entomosporium, powdery mildew, rust and many more. Root diseases include Fusarium, Phytophthora, Rhizoctonia, Sclerotium, and Sclerotinia. Do not use with a organosilicone surfactant.
Foliar spray rates: 1/4-1/2 tsp per gal or 4-7 oz per 100 gal.
Drench rates: 2-3 oz per 100 gal.
*Restricted use in NY
*Not registered in CA, HI
MOA = 7/11
REI = 12
71-1700
Nordox 75WG 83.9% 12.5LB OMRI Brandt EPA# 48142-4
**OMRI listed
**Not registered in all states
Vendor: BRANDT CONSOLIDATED INC
UM: EA
Active Ingredient: Cuprous Oxide
Broad-spectrum copper fungicide/bactericide labeled for use on field grown ornamentals, tree fruits, grapes, small fruits and vegetables. Nursery and greenhouse crops include ornamentals and certain vegetables. Labeled for foliar diseases such as Alternaria, anthracnose, Cercospora, black spot, downy mildew, powdery mildew, and many bacterial leaf spots.
Foliar sprays rates: 1/3 tsp per gal or 10.66 oz per 100.
*OMRI listed
*Not registered in all states
MOA = M1
REI = 12
71-2200
Orkestra Intrinsic 42.52% 16OZ AGENCY BASF EPA# 7969-370
**This product CANNOT ship via UPS/Fedex. Please request another mode of shipping.

*Restricted use in NY. Prohibited in Nassau and Suffolk County, NY.
Vendor: BASF CORPORATION
UM: EA
**This product CANNOT ship via UPS/Fedex. Please request another mode of shipping.

Active Ingredient: Fluxapyroxad and Pyraclostrobin
Liquid suspension concentrate. Foliar spray controls Botrytis, downy mildew, powdery mildew and many leaf spot diseases, crown rots, and stem blights. Soil drenches provide preventative control of Fusarium, Rhizoctonia, and Sclerotinia; suppression of Phytophthora, Pythium and Thielaviopsis. For use on ornamental plants in greenhouses, shade houses, lathhouses, outdoor nurseries, retail nurseries and landscapes. May discolor petunia or impatiens blooms and stunt carnations, dianthus, impatiens, and violas.
Foliar spray rates: 1/4-2/3 tsp for most diseases or 4-10 oz per 100 gal.
Drench rate: 1/2-2/3 tsp per gal or 8-10 oz per 100 gal.
*Restricted use in NY. Prohibited in Nassau and Suffolk County, NY.
MOA = 7/11
REI = 12
71-2300
Orvego 47.1% 28OZ Fungicide BASF EPA# 7969-301
**Restricted use in NY
Vendor: BASF CORPORATION
UM: EA
Active Ingredient: Ametoctradin and Dimethomorph
Preventative fungicide with contact, translaminar and locally systemic activity, labeled for ornamentals grown in greenhouses, container and field-grown nurseries and interiorscapes. Controls downy mildew (foliar spray) and aerial Phytophthora (spray, sprench or drench). Excellent plant safety.
Foliar spray and drench rates: 3/4-1 tsp per gal or 11-14 oz per 100 gal.
*Restricted use in NY.
MOA = 45/40
REI = 12
71-26821
Pageant Intrinsic 38% 12LB AGENCY BASF EPA# 7969-251
*Restricted use in NY
*Not regsitered in CA
Vendor: BASF CORPORATION
UM: EA
Active Ingredient: Boscalid and Pyraclostrobin
Broad spectrum fungicide combining two active ingredients for foliar and root diseases on ornamentals in greenhouses, interiorscapes, landscapes and nurseries. Foliar diseases include Alternaria, Botrytis, Cercospora, Colletotrichum, downy mildew, aerial Phytophthora, powdery mildew, rust and scab. Root and crown rots include Cylindrocladium, Fusarium, Pythium, Rhizoctonia, and Sclerotinia. Plant health benefits include increased cold, heat and drought tolerance.
Foliar spray rates: 1/2-1 1/2 tsp per gal or 6-18 oz per 100 gal.
Drench rates: 1-11/2 tsp per gal or 12-18 oz per 100 gal.
*Do not use with organo-silicon surfactants such as CapSil.
*Restricted use pesticide in NY
*Nor registered in CA
MOA = 7/11
REI = 12
71-26801
Pageant Intrinsic 38% 1LB AGENCY BASF EPA# 7969-251
**Restricted use in NY
*Not registered in CA
Vendor: BASF CORPORATION
UM: EA
Active Ingredient: Boscalid and Pyraclostrobin
Broad spectrum fungicide combining two active ingredients for foliar and root diseases on ornamentals in greenhouses, interiorscapes, landscapes and nurseries. Foliar diseases include Alternaria, Botrytis, Cercospora, Colletotrichum, downy mildew, aerial Phytophthora, powdery mildew, rust and scab. Root and crown rots include Cylindrocladium, Fusarium, Pythium, Rhizoctonia, and Sclerotinia. Plant health benefits include increased cold, heat and drought tolerance.
Foliar spray rates: 1/2-1 1/2 tsp per gal or 6-18 oz per 100 gal.
Drench rates: 1-1 1/2 tsp per gal or 12-18 oz per 100 gal.
*Do not use with organo-silicon surfactants such as CapSil.
*Restricted use pesticide in NY
*Not registered in CA
MOA = 7/11
REI = 12
71-2748
Protect 75% DF T/O 6LB CLEARY EPA# 1001-77
*Not registered in AK, CT, OH
Vendor: NUFARM FINANCE BV
UM: EA
Active Ingredient: Mancozeb
Turf and ornamental fungicide. Controls petal blight, leaf spot, Botrytis, anthracnose, rust, and black spot on roses, azaleas, mums and many other ornamentals. Tank mix with copper products for even greater control of bacterial diseases.
Labeled for certain vegetable transplants.
*Do not use on marigolds.
Foliar spray rates: 1 Tbls per gal or 1.5 lb per 100 gal.
*Not registered in AK, CT, OH
71-3100
Segovis 18.7% 1PT SYNGENTA EPA# 100-1533
Vendor: SYNGENTA CROP PROTECTION INC
UM: EA
Active Ingredient: Oxathiapiprolin
Liquid formulation controls downy mildew and Phytophthora by spray or drench. For use on ornamental plants in greenhouses, shade houses, lathhouses, outdoor nurseries, and commercial landscapes.
Foliar spray rates: 1/8 to 1/2 tsp per 3.5 gal or 0.6 to 2.4 oz per 100 gal.
Drench rates: 1/5 to 1 tsp per 5 gal or 0.65 to 3.2 oz per 100 gal. Longer residual activity at higher rates.
MOA = U15
REI = 4
71-31101
This product is obsolete.
Segway O 34.5% 16OZ OHP EPA# 71512-13-59807
*Restricted use in NY
Vendor: OHP
UM: EA
Active Ingredient: Cyazofamid
Foliar spray or drench to control downy mildew (spray only), Pythium and Phytophthora on ornamentals in greenhouses, nurseries, and landscapes.
Foliar spray rates: 3/8 - 5/8 tsp per 3 gal or 2.1-3.5 oz per 100 gal.
Drench rates: 1/4 - 1 tsp per 3 gal or 1.5-6 oz per 100 gal depending on the disease.
*Restricted use pesticide in NY
MOA = 21
REI = 12
71-14652
Restricted Product - Cannot Order - Please Call
Stature SC 43.5% 25OZ fung BASF EPA# 241-428
Vendor: BASF CORPORATION
UM: EA
Active Ingredient: Dimethomorph
Locally systemic fungicide for the control of downy mildew and Phytophthora diseases on greenhouse and outdoor grown ornamentals. Foliar sprays control downy mildew and aerial Phytophthora. Some damage to blooms may occur from sprays. Drenches control Phytophthora root and crown rots.
Foliar spray rates: 1/3-3/4 tsp per gal or 6.12-12.25 oz per 100 gal.
Drench rates: 1/4-3/4 tsp per gal or 3.06-12.25 oz per 100 gal.
MOA = 40
REI = 12
71-29781
Subdue Maxx 21.3% 10GAL Linkpak AGENCY SYNGENTA EPA# 100-796
Vendor: SYNGENTA CROP PROTECTION INC
UM: EA
Active Ingredient: Mefenoxam
Systemic residual control of root and stem rot diseases caused by Pythium and Phytophthora.
Drench rate: Soil drench at time of seeding at 0.13-0.25 oz per 100 gal; at time of transplanting 1/2-1 oz per 100 gal.
Foliar spray rates: 0.15-0.3 ml per gal or 0.5-1 oz per 100 gal.
Applications for downy mildew must be tank mixed with a product for downy mildew from another MOA class. A 0 hour REI can be obtained for drench applications that meet label criteria.
Many vegetable and herb transplants can be treated. CA and NY require a supplemental label.
Some states have 24C labels allow for use on basil for downy mildew.
MOA = 4
REI = 48
71-3040
Triathlon BA 98.85% 1 GAL OMRI OHP EPA# 70051-107-59807
**OMRI listed
Vendor: OHP
UM: EA
Active Ingredient: Bacillus amyloliquefaciens strain D747
Biofungicide/bactericide for use on ornamentals, vegetables and herbs, berries, stone fruits and turf for prevention of many foliar and root diseases. Foliar sprays for anthracnose, Alternaria, bacterial leaf spots (Erwinia, Pseudomonas, Xanthomonas), Botrytis, black spot on roses, Cercospora, downy mildew, Entomosporium, Myrothecium, powdery mildew, rust, and scab. Soil drench application prevents Fusarium, Pythium, Phytophthora, and Rhizoctonia. Labeled for cutting and root dip.
Foliar spray rates: 2 tsp-2 Tbls per gal or 16- 96 oz per 100 gal.
Drench rates: 2-4 1/2 tsp per gal or 16-72 oz per 100 gal.
*OMRI listed
MOA = 44
REI = 4

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