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20 Best Fungicide For Powdery Mildew (2023 Updated)

Fungicide for powdery mildew is a product that is used to kill or prevent the growth of powdery mildew. Powdery mildew is a type of fungus that can affect a variety of plants, including roses, grapevines, and cucumbers.

This fungus can cause the leaves of affected plants to become covered in a white, powdery substance. In severe cases, powdery mildew can cause the leaves to yellow and eventually drop off.

20 Best Fungicide For Powdery Mildew

Product Image Product Name Features Price

Organocide Plant Doctor Systemic Fungicide

  • Insecticide, fungicide, miticide
  • Kills insects by contact & controls diseases
  • Harvest same day

Bonide Fung-onil Multi-Purpose Fungicide Concentrate – 16 oz bottle

  • Controls many diseases on roses shrubs flowers vegetables fruit and shade trees
  • Control diseases such as leaf spots rust blights fruit rots mildew scab fungus and other diseases

Bonide Sulfur Fungicide Dust 4 Pounds

  • Special micronic preparation suitable for use as dust or spray
  • Can be used as fungicide on fruits, vegetables and ornamentals

Spectrum Brands Immunex Fungicide – 16 fl oz jug

  • Cures and prevents all major diseases on roses, flowers and ornamental shrubs
  • Protects for up to 2 weeks
  • Can’t be washed off by rain once dried

Bonide Products 775 Ready-to-Use Copper Fungicide 32-Ounce [2-pack]

  • Copper Sulfate 7.0% for controlling early, and late blight, leaf spots, downy mildew, anthracnose, and certain other fungal diseases

Bonide Copper Fungicide Concentrate – 16 oz bottle

  • 16 oz. (Concentrate)

Dr. Earth Final Stop Fungicide, Disease Control – 24 fl oz

  • OMRI listed for use in organic gardening.
  • May be used up to the day of harvest.
  • An effective alternative to chemical sprays that contains no synthetic ingredients.

Bonide MANCOZEB Fungicide 8 oz

  • 8 oz

Daconil Concentrated Liquid Fungicide – 16 oz bottle

  • Broad spectrum fungicide
  • Soft on beneficial insects
  • Rapid breakdown

Bonide Captan Fruit & Ornamental Fungicide 8 Ounces

  • Multipurpose fungicide for ornamentals and fruits
  • Controls damping-off, downy mildew, botrytis blossom blight and many more

Propiconazole 14.3 Fungicide – 1 Gallon

  • Microemulsion formulation for less odor, better tank stability and excellent plant coverage
  • Locally systemic mode of action for long-lasting disease control

Bonide Infuse Systemic Disease Control 8 Ounce Concentrate

  • Works to prevent and cure at the same time
  • Last up to one month
  • Won’t wash off

Patch Pro Fungicide 16oz

  • 14.3% Propiconazole
  • Landscape, turf, ornamentals
  • 0.5 ounces per gallon of water to treat 1,000 square feet

Garden Sentinel Biofungicide – 16 oz. Concentrate

  • 16 oz. Concentrate
Organocide Plant Doctor Systemic Fungicide
  • Insecticide, fungicide, miticide
  • Kills insects by contact & controls diseases
  • Harvest same day
Bonide Fung-onil Multi-Purpose Fungicide Concentrate – 16 oz bottle
  • Controls many diseases on roses shrubs flowers vegetables fruit and shade trees
  • Control diseases such as leaf spots rust blights fruit rots mildew scab fungus and other diseases
Bonide Sulfur Fungicide Dust 4 Pounds
  • Special micronic preparation suitable for use as dust or spray
  • Can be used as fungicide on fruits, vegetables and ornamentals
Spectrum Brands Immunex Fungicide – 16 fl oz jug
  • Cures and prevents all major diseases on roses, flowers and ornamental shrubs
  • Protects for up to 2 weeks
  • Can’t be washed off by rain once dried
Bonide Products 775 Ready-to-Use Copper Fungicide 32-Ounce [2-pack]
  • Copper Sulfate 7.0% for controlling early, and late blight, leaf spots, downy mildew, anthracnose, and certain other fungal diseases
Bonide Copper Fungicide Concentrate – 16 oz bottle
  • 16 oz. (Concentrate)
Dr. Earth Final Stop Fungicide, Disease Control – 24 fl oz
  • OMRI listed for use in organic gardening.
  • May be used up to the day of harvest.
  • An effective alternative to chemical sprays that contains no synthetic ingredients.
Bonide MANCOZEB Fungicide 8 oz
  • 8 oz
Daconil Concentrated Liquid Fungicide – 16 oz bottle
  • Broad spectrum fungicide
  • Soft on beneficial insects
  • Rapid breakdown
Bonide Captan Fruit & Ornamental Fungicide 8 Ounces
  • Multipurpose fungicide for ornamentals and fruits
  • Controls damping-off, downy mildew, botrytis blossom blight and many more
Propiconazole 14.3 Fungicide – 1 Gallon
  • Microemulsion formulation for less odor, better tank stability and excellent plant coverage
  • Locally systemic mode of action for long-lasting disease control
Bonide Infuse Systemic Disease Control 8 Ounce Concentrate
  • Works to prevent and cure at the same time
  • Last up to one month
  • Won’t wash off
Patch Pro Fungicide 16oz
  • 14.3% Propiconazole
  • Landscape, turf, ornamentals
  • 0.5 ounces per gallon of water to treat 1,000 square feet
Garden Sentinel Biofungicide – 16 oz. Concentrate
  • 16 oz. Concentrate

1. Organocide Plant Doctor Systemic Fungicide

Organocide Plant Doctor Systemic Fungicide

  • Insecticide, fungicide, miticide
  • Kills insects by contact & controls diseases
  • Harvest same day
  • No petroleum solvents
  • Natural oils for organic gardening

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Weight 3.25 oz

2. Bonide Fung-onil Multi-Purpose Fungicide Concentrate – 16 oz bottle

Bonide Fung-onil Multi-Purpose Fungicide Concentrate - 16 oz bottle

  • Controls many diseases on roses shrubs flowers vegetables fruit and shade trees
  • Control diseases such as leaf spots rust blights fruit rots mildew scab fungus and other diseases
  • Use as little as 1-1/2 teaspoons per gallon. Mixes readily with water
  • Best applied with a tank-type sprayer
  • Highly recommended to add a spreader-sticker to the spray mix for better adhesion/coverage on the plant leaf

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Specifications

Details
Organic No
Concentrated Yes
Product Form Liquid
Active Ingredient 29.6% Chlorothanonil
Contact or Systemic Contact
Fertilizer Component No
Container Size 16 oz
Brand Name Bonide

3. Bonide Sulfur Fungicide Dust 4 Pounds

Bonide Sulfur Fungicide Dust 4 Pounds

  • Special micronic preparation suitable for use as dust or spray
  • Can be used as fungicide on fruits, vegetables and ornamentals
  • Approved for organic gardening

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Weight 4.17 lb

4. Spectrum Brands Immunex Fungicide – 16 fl oz jug

Spectrum Brands Immunex Fungicide - 16 fl oz jug

  • Cures and prevents all major diseases on roses, flowers and ornamental shrubs
  • Protects for up to 2 weeks
  • Can’t be washed off by rain once dried
  • Protects fruits, nuts and vegetables

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Units in Package 1
Unit Size 16 fl oz
Directions Read all instructions before use. It is a violation of Federal law to use this product in a manner inconsistent with its labeling. For home use only. Do not allow people or pets to contact treated areas until spray has dried. Use restrictions for lawns and ornamentals. Do not use treated plants, grass or clippings for food or feed. This product is non-staining to most home siding depending on age and cleanliness. However, before using in areas where the spray may contact home siding (vinyl siding in particular), test in an inconspicuous area and recheck in a few hours. Do not use if any staining is observed. Choose an application method. Pump-up sprayer or trigger bottle sprayer: Fill with required amount of water. Add the amount of concentrated specified. Replace sprayer top and shake well before spraying. Dial-style hose-end sprayer. Set sprayer to the fl oz/gallon level specified. Use only enough product for the area to be treated. Close sprayer, attached to hose and apply. Concentrate plus water-style sprayer. Determine the amount of concentrate required. Pour concentrate into sprayer jar to the required fl oz level. Then add the required amount of water to the gallon level. Replace sprayer top on jar and shake well before spraying. Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate is highly effective when it is used to prevent diseases or applied at the first sign of disease. Consider treating early in the season. When using this product on ornamental plants not listed, test on small area first. If it rains before product has dried, reapply. If you need more information about lawn, ornamental, fruit and vegetable diseases, contact your local County Extension Service. Handy conversions: 1/2 fl oz equals 1 tbsp and 1 fl oz equals 2 tbsp. Food utensils such as measuring cups and spoons must not be used for food purposed after use in measuring pesticides. This product prevents and cures brown patch, copper spot, dollar spot, leaf spot (including septoria zonate), melting out, crown rot, leaf smuts, powdery mildew, rust, red thread, spring dead spot, necrotic ring spot and summer patch on home lawns, For lawn application in Nassau and Suffolk counties in New York State, do not apply more than three times per given area per year. Use 7 fl oz/gallon of water to treat 500 sq ft. Start treating when grass begins to turn green in the spring or when signs of diseases are first noticed. For best disease control treat every two weeks. Do not apply more than 16 treatments per year. For crown rot use 3-1/2 fl oz/gallon of water to treat 250 sq ft. Roses, flowers, ornamental shrubs and trees. Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate prevents and cures black spot, blight (blossom, cercospora leaf, ovulinia petal), leaf spot (including cercospora), powdery mildew, rust (including needle, fusiform), scab (including fusicladium) and other diseases on a wide variety of roses, flowers, trees and ornamental shrubs. Use 1 fl/oz gallon of water. Apply to the point when spray just begins to run off the leaves. Apply once every two weeks throughout the season or until conditions favoring disease development (hot, moist weather) are no longer present. Allow spray to dry before watering. 1. Treat roses on a seven- to 10-day schedule. If black spot is not a problem, a 10- to 14-day schedule is recommended. 2. When treating Azaleas, Mountain Laurel or Rhododendrons, begin spraying when flowers start to show color. 3. When treating Irises, increase use rate to 2 fl oz/gallon of water. 4. For Douglas Fir, Loblolly Pine and Slash Pine use 3 fl oz/gallon of water. Begin treating in early spring and continue treating every two to three weeks until threat of infection has passed. Plant: Rose. Diseases: Black spot, powdery mildew, rust. Plant: Azalea, Mountain Laurel, Rhododendron. Diseases: Petal blight (ovulinia spp.), powdery mildew. Plant: Abelia, Acalypha (Cooper-Leaf), Catalpa, Flowering Cherry, Hackberry, Honeysuckle, Privet, Trumpet Creeper, Zinnia). Diseases: Cercospora leaf spot, powdery mildew. Plant: Ageratum, Anemone, Angelica, Ash, Aster, Birch, China Aster, Chokeberry, Chrysanthemum, Columbine, Cornflower, Dianthus, Flowering Quince, Flowering Maple (Abutilon), Four O’Clock, Fuchsia, Iris, Marigold, Moonflower, Ninebark, Russian Olive, Smoke-Tree (Gothus). Diseases: Rust. Plant: Achillea (Yarrow), Alder, Amelanchier (Juneberry, Shadbush), Barberry, Carnation, Delphinium, Gaillardia, Gardenia, Geranium, Hollyhock, Mock Orange, Pansy, Petunia, Photinia, Salvia, Snapdragon, Viburnum. Diseases: Powdery mildew, rust. Plant: African Violet, Begonia, Bittersweet, Buckeye, California Poppy, Chestnut (Horse), Cosmos, Crepe Myrtle, Dahlia, Elm, Euonymus, Gourd (Ornamental), Grape Leaf, Ivy, Lilac, Locust, Maple, Oak, Poinsettia, Spirea, Sycamore, Walnut, Willow. Diseases: Powdery mildew. Plant: Flowering Almond. Disease: Blossom blight (monilinia spp.). Plant: Amorpha (False Indigo), Bellflower, Buttonbush, Fleabane, Phlox, Sunflower. Diseases: Cercospora leaf spot, powdery mildew, rust. Plant: Calendula, Hydrangea, Leucothoe. Diseases: Cercospora leaf spot. Plant: Flowering Crabapple, Flowering Pear, Hawthorn. Diseases: Powdery mildew, rust, scab. Plant: Dogwood. Diseases: Anthracnose, powdery mildew. Plant: Douglas Fir. Diseases: Needle rust. Plant: Loblolly Pine, Slash Pine. Diseases: Fusiform rust. Plant: Pyracantha. Diseases: Fusicladium scab. Fruits and nuts: Almond (blossom blight, rust and shothole control; Anthracnose suppression): Mix 1/2 fl oz of Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate with 1 gallon of water and uniformly apply to all parts of the tree to point of runoff. Do not apply within 90 days of harvest. Do not apply more than three times per season. For Anthracnose, blossom blight and shothole, apply at pink bud stage (when about 5 percent of the buds have bloomed). If conditions favoring disease development (hot, moist weather) exist, reapply at full bloom and when petals fall. For rust, apply this product about eight weeks after flowering if conditions favoring disease development exist. Reapply every 21 days so long as disease symptoms persist. Apple and Mayhaw (powdery mildew, rusts and scab control): Mix 2/3 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the tree to point of runoff. Reapply every seven to 10 days so long as disease symptoms persist. Do not apply within 14 days of harvest. Do not apply more than 10 times per season. For powdery mildew and rusts, apply at pink bud stage when the buds are opening and the pink petals are visible. For scab, apply this product when the first green leaf tips are visible. Stone Fruits: For all Stone Fruits, this product may be applied up to the day of harvest. Apricot and Nectarine (brown rot blossom blight, brown rot, powdery mildew and shothole control): Mix 1/2 fl oz of Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate with 1 gallon of water and uniformly apply to all parts of the tree to point of runoff. Do not apply more than seven times per season. Apply at early red bud stage (the tips of the petals are visible and the flowers are still closed) before infection occurs. Reapply every seven to 14 days so long as disease symptoms persist. Cherry (brown rot blossom, blight, brown rot, leaf spot and powdery mildew control): Mix 1/2 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the tree to point of runoff. Do not apply more than seven times per season. Apply when single flower buds are visible (but still closed), on short stalks and before infection occurs. Reapply every seven to 14 days so long as disease symptoms persist. For leaf spot, make an addition application of this product after harvest. Peach (brown rot blossom blight, brown rot, powdery mildew and rust control): Mix 1/2 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the tree to the point of runoff. Do not apply more than seven times per season. For brown rot blossom blight, brown rot and powdery mildew, apply at the early pink bud stage (the tips of the petals are visible and the flowers are still closed) before infection occurs. Reapply every seven to 14 days so long as disease symptoms persist. For rust, apply this product about eight weeks after flowering if conditions favoring disease development (hot, moist weather) exist. Reapply every 21 days so long as disease symptoms persist. Plum and Prune (Brown rot blossom blight, brown rot and rust control): Mix 1/2 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the tree to point of runoff. Do not apply more than seven times per season. For brown rot blossom blight and brown rot, apply when the first green leaf tips are visible and before infection occurs. Reapply every seven to 14 days so long as disease symptoms persist. For rust, apply this product about eight weeks after flowering if conditions favoring disease development (hot, moist weather) exist. Reapply every 21 days so long as disease symptoms persist. Strawberry (leaf blight, leaf spot and powdery mildew control): Mix 1-1/4 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. This product may be applied up to the day of harvest. Do not apply more than six times per season. Do not plant a new crop in the same place as the crop that was treated within 30 days of last application. Apply when the disease first appears or when conditions favoring disease development (hot, moist weather) exist. Reapply every 14 to 21 days so long as disease symptoms persist. Berries: For all berries, this product may be applied up to the day of harvest. Blackberry, Raspberry (Includes use on the following members of the Caneberry group including varieties and/or hybrids: Bingleberry, Black Satin Berry, Boysenberry, Cherokee Blackberry, Chesterberry, Cheyenne Blackberry, Coryberry, Darrowberry, Dewberry, Dirksen Thornless Berry, Himalayaberry, Hullberry, Lavacaberry, Lowberry, Lucretiaberry, Mammoth Blackberry, Marionberry, Nectarberry, Olallieberry, Oregon Evergreen Berry, Phenomenalberry, Rangeberry, Ravenberry, Rossberry, Shawnee Blackberry, Youngberry), Loganberry (cane and leaf rust, leaf spot, orange rust, powdery mildew and yellow rust control): Mix 2/3 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. Do not apply more than four times per season. Apply at budbreak and reapply every 10 to 14 days so long as disease symptoms persist. Currant (powdery mildew): Mix 1-1/4 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. Do not apply more than eight times per season. Apply before bloom, through bloom and up to two weeks post-bloom. Gooseberry (anthracnose and powdery mildew control): Mix 1-1/4 fl oz of Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. Do not apply more than eight times per season. For Anthracnose, apply when the first leaf has completely unfolded. If conditions favoring disease development (hot, moist weather) exist, reapply every 10 to 14 days. For powdery mildew, apply this product before bloom, through bloom, and up to two weeks post-bloom. Grapes (Anthracnose, black rot and powdery mildew control): Mix 1-1/4 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. Do not apply within 14 days of harvest. Do not apply more than five times per season. For Anthracnose and black rot, apply when new shoots are 1 to 3 inches in length. Reapply every 14 days so long as disease symptoms persist. For powdery mildew, apply this product when shoots are 12 to 18 inches in length (before bloom). Reapply every 21 days so long as disease symptoms persist. Peppermint and Spearmint (powdery mildew and rust control): Mix 1-1/4 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the plant to the point of runoff. Do not apply within 30 days of harvest. Do not apply more than three times per season. Apply in the early spring when the plants have broken dormancy. Reapply every 14 to 21 days so long as disease symptoms persist. Vegetables: Asparagus (rust control): Mix 1-1/4 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. Do not apply to harvestable spears. In all states except California: This product may be applied within 180 days of harvest. Do not apply more than one time per growing season. In California only: Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate may be applied within 30 days of harvest. Do not apply more than four times per year. In all locations, apply to the developing ferns after harvest. Reapply 14 days so long as disease symptoms persist. Cucurbits (includes use on the following members of the Cucurbits group: Acorn Squash, Balsam Apple, Balsam Pear, Bitter Melon, Butternut Squash, Calabaza, Cantaloupe, Casaba, Chinese Cucumber, Chinese Waxgourd, Citron Melon, Crenshaw Melon, Crookneck Squash, Cucumber, Edible Gourd, Gherkin, Golden Pershaw Melon, Honey Balls, Honeydew Melon, Hubbard Squash, Mango Melon, Muskmelon, Ornamental Gourd, Persian Melon, Pumpkin, Santa Claus Melon, Scallop Squash, Snake Melon, Spaghetti Squash, Straightneck Squash, Summer Squash, Vegetable Marrow, Watermelon, Winter Squash, Zucchini) (powdery mildew control): Mix 1-1/4 fl oz of this product with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate may be applied up to and including the day of harvest. Do not apply more than five times per season. Do not plant a new crop in the same place as the crop that was treated within 30 days of last application. Apply Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate when the disease first appears. Reapply every seven to 10 days so long as disease symptoms persist. Snap Bean (pod tip and rust control): Mix 1-1/4 fl oz of Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate with 1 gallon of water and uniformly apply to all parts of the plant to point of runoff. This product may be applied up to and including the day of harvest. Do not apply more than four times per season. Do not plant a new crop in the same place as the crop that was treated within 30 days of the last application. For rust, apply when the disease first appears. For pod tip rot, apply when pods begin to develop. For both disease, if conditions favoring disease development (hot, moist weather) exist, reapply every seven to 10 days. Tomato (powdery mildew control): Mix 1 fl oz of Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate with 1 gallon of water and uniformly apply to all parts of the plant to the point of runoff. This product may be applied up to and including the day of harvest. Do not apply more than four times per season. Do not plant a new crop in the same place as the crop that was treated within 30 days of last application. Apply when the disease first appears or if conditions favoring disease development (hot, moist weather) exist. Reapply every 21 days so long as disease symptoms persist. Storage and disposal: Pesticide storage: Store in cool, dry place away from heat or open flame. Pesticide disposal: If empty: Do not reuse this container. Place in trash or offer for recycling if available. If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.
Ingredients Active Ingredient: Myclobutanil (1.55%). Other Ingredients (98.45%).
Warnings Keep out of reach of children. Hazards to humans and domestic animals. Causes moderate eye irritation. Avoid contact with eyes or clothing. Wash thoroughly with soap and water after handling. First Aid: If in eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye. Call a Poison Control Center or doctor for treatment advice. Have the product container or label with you when calling a Poison Control Center or doctor, or going for treatment. Environmental Hazards: Do not apply directly to water. Do not contaminate water when disposing of equipment washwaters. To all the extent consistent with applicable law, buyer assumes all responsibility for safety and use not in accordance with directions.

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5. Scotts – DiseaseEx Lawn Fungicide, 10 lbs.

Scotts - DiseaseEx Lawn Fungicide, 10 lbs.

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Organic No
Product Form Granules
Product Type Lawn Fungicide
Concentrated No
Fertilizer Component No
Active Ingredient 0.31 Azoxystrobin
Container Size 10 lb
Coverage Area 5000 sq ft
Brand Name Scotts

6. Bonide Products 775 Ready-to-Use Copper Fungicide 32-Ounce [2-pack]

Bonide Products 775 Ready-to-Use Copper Fungicide 32-Ounce [2-pack]

  • Copper Sulfate 7.0% for controlling early, and late blight, leaf spots, downy mildew, anthracnose, and certain other fungal diseases
  • Formula will not burn plants
  • Contains Copper Octanoate, which is a Copper salt combined with a naturally occurring fatty acid
  • Comes in an easy-to-use bottle

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Package Dimensions 11.89 x 10.39 x 3.78 inches
Is Discontinued By Manufacturer No

7. Bonide Copper Fungicide Concentrate – 16 oz bottle

Bonide Copper Fungicide Concentrate - 16 oz bottle

  • 16 oz. (Concentrate)

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Weight 1 lb

8. Dr. Earth Final Stop Fungicide, Disease Control – 24 fl oz

Dr. Earth Final Stop Fungicide, Disease Control - 24 fl oz

  • OMRI listed for use in organic gardening.
  • May be used up to the day of harvest.
  • An effective alternative to chemical sprays that contains no synthetic ingredients.

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Units in Package 1
Unit Size 24 fl oz
Directions Directions for Use: Shake well before each use. This product is ready to use from the bottle. Thorough coverage of plant foliage is necessary for maximum control. Repeat application every few days if needed. Apply early in the morning or late in the afternoon to avoid leaf burn. May be used on edible crops up to the day of harvest. Storage and Disposal: Storage: Store container in a cool dry location. Disposal: Do not reuse container. Dispose of in trash or recycle where accepted. Shake well before using. Read entire label before use.
Ingredients Active Ingredients: Rosemary Oil 0.06%, Clove Oil 0.05%, Peppermint Oil 0.05%, Inert Ingredients (Glycerin, Lecithin, Water) 99.84%, Total: 100.00%.
Warnings Caution: Keep out of reach of children. Precautionary Statements: Caution: Keep out of reach of children. Avoid contact with skin, eyes or clothing. Do not swallow. Wash thoroughly with soap and water after handling. Do not apply directly to water. First Aid: If on Skin or Clothing: Wash with plenty of soap and water. If in Eyes: Flush eyes with plenty of water. If Inhaled: Seek fresh air. If Swallowed: Rinse mouth out with clean water. Do not induce vomiting. Consult your physician if irritation persists.

9. Bonide MANCOZEB Fungicide 8 oz

Bonide MANCOZEB Fungicide 8 oz

  • 8 oz

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Assembled Product Weight 0.96 lbs
Assembled Product Dimensions (L x W x H) 3.00 x 1.50 x 6.00 Inches

10. Daconil Concentrated Liquid Fungicide – 16 oz bottle

Daconil Concentrated Liquid Fungicide - 16 oz bottle

  • Broad spectrum fungicide
  • Soft on beneficial insects
  • Rapid breakdown
  • No accumulation in the food chain
  • Made in the usa

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Brand Name GardenTech
Organic No
Concentrated Yes
Product Type Fungicide
Fertilizer Component No
Product Form Liquid
Active Ingredient 0.087% Chlorothanlonil
Contact or Systemic Contact

11. Bonide Captan Fruit & Ornamental Fungicide 8 Ounces

Bonide Captan Fruit & Ornamental Fungicide 8 Ounces

  • Multipurpose fungicide for ornamentals and fruits
  • Controls damping-off, downy mildew, botrytis blossom blight and many more
  • For use on apples, peaches, grapes, strawberries, and other listed fruits
  • For use on listed fruits & ornamentals
  • Can be used as a drench or spray

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Weight 1 lb

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12. Bonide Products 775 Copper Fungicide, 32-oz.

Bonide Products 775 Copper Fungicide, 32-oz.

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MFG Part Number 7756
Dimensions 2.5 × 4.75 × 12 in

13. Bonide Products Inc 142 Sulfur Plant Fungicide Organically Controls Rust, Leaf Spot and Powdery Mildew, 4 lbs (2)

Bonide Products Inc 142 Sulfur Plant Fungicide Organically Controls Rust, Leaf Spot and Powdery Mildew, 4 lbs (2)

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14. Propiconazole 14.3 Fungicide – 1 Gallon

Propiconazole 14.3 Fungicide - 1 Gallon

  • Microemulsion formulation for less odor, better tank stability and excellent plant coverage
  • Locally systemic mode of action for long-lasting disease control
  • Excellent tank mix partner with most other fungicides

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Solutions Pest & Lawn

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Details
Restricted Use No
Application Methods Broadcast Spray, Injection, Spot Treatment
Active Ingredient Propiconazole 14.3%
Chemical Type Fungicide
Formulation Emulsifiable Concentrate (EC)
Use Sites Outdoors
Comparable Products Patch Pro 14.3 Fungicide

15. Bonide (BND148) – Infuse Systemic Disease Control, Fungicide Concentrate (16…

Bonide (BND148) - Infuse Systemic Disease Control, Fungicide Concentrate (16...

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16. Bonide Infuse Systemic Disease Control 8 Ounce Concentrate

Bonide Infuse Systemic Disease Control 8 Ounce Concentrate

  • Works to prevent and cure at the same time
  • Last up to one month
  • Won’t wash off
  • Comes as a Concentrated

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Amazon
HorseLoverz Super Store

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Specifications

Details
ACTIVE INGREDIENT Propicanizole – 1.55%
FOR USE Flowers, roses, trees, shrubs, and lawns
YIELD 3 – 32 gallon average yield

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Karen HZ
Clemente B

17. Bonide 16 oz Liquid Copper Fungicide Ready-to-Use

Bonide 16 oz Liquid Copper Fungicide Ready-to-Use

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eBay – pratoco10
Walmart

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Assembled Product Weight 1.24 lb
Assembled Product Dimensions (L x W x H) 2.00 x 4.13 x 10.75 Inches

18. Patch Pro Fungicide 16oz

Patch Pro Fungicide 16oz

  • 14.3% Propiconazole
  • Landscape, turf, ornamentals
  • 0.5 ounces per gallon of water to treat 1,000 square feet

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Amazon
Solutions Pest & Lawn

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Specifications

Details
Restricted Use No
Application Methods Broadcast Spray, Spot Treatment
Active Ingredient Propiconazole 14.3%
Chemical Type Fungicide
Formulation Emulsifiable Concentrate (EC)

19. Arber Bio Fungicide 16 oz. Concentrate

Arber Bio Fungicide 16 oz. Concentrate

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Arber
Gardeners.com
Arbico Organics
Grow Green MI

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Origin Made in the U.S.A
Lead Time Ships within 1 Business Day

20. Garden Sentinel Biofungicide – 16 oz. Concentrate

Garden Sentinel Biofungicide - 16 oz. Concentrate

  • 16 oz. Concentrate

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Gurney’s Seed & Nursery
Gardens Alive!

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Specifications

Details
Botanical Name Garden Sentinel Biofungicide
Season both Spring & Fall

Conclusion

The most important aspect of managing powdery mildew is to prevent the disease from occurring in the first place. This can be done by planting resistant varieties, avoiding overhead watering, and keeping the garden free of debris.

If powdery mildew does appear, it is important to act quickly. The disease can be controlled with a number of different fungicides, including those that are organic.

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