This says it is a replacement for Bordeaux mixture. Exactly how does it differ from the real thing? Perhaps easier to mix, but is it as effective?

This product is used as a fungicide. I use it to control early and late season blight on tomatoes and potatoes and white powdery mildew on phlox. Mix and use according to directions and it is very effective. It works as a bordeaux mixture without the hassle of mixing the bordeaux formula. I begin spraying in July every 7 to 10 days depending on rain.

Is copper supposed to be in solution to be effective? If yes, how can the powder be effective? How to maintain the copper in solution when applied?

You can either mix or use a duster like a dustmiser

I mixed it with water -- and a shot of detergent, I think--and applied it to my squash for what I thought to be downey mildew that was reducing the vegetative vitality. I have no idea how effective it was. I used it because it because copper sulphate works on grapes and is not very toxic to man or beast.

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Bonide Copper Fungicide, 1 lb. Ready-to-Use Spray or Dust for Organic Gardening, Controls Common Diseases in Lawn & Garden

Bonide Copper Fungicide, 1 lb. Ready-to-Use Spray or Dust for Organic Gardening, Controls Common Diseases in Lawn & Garden

Product ID: 85512792

Details

Brand
Bonide
Item Form
Spray
Item Weight
1.1 Pounds
Target Species
Plants
Unit Count
16.0 Ounce

⚡Ready-to-use spray or dust

🌿100% organic gardening approved

🛡️Broad-spectrum fungal defense

19399CFA

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Description

🌱 Defend your garden like a pro—because your plants deserve the best!

ORGANIC SAFE - Certified for organic produce—grow clean, green, and disease-free.
TRUSTED PROVEN - Highly rated with 4.5 stars from 900+ gardeners who demand results.
HARVEST READY FORMULA - Safe to apply up to the day of harvest—no compromises on freshness.
VERSATILE APPLICATION - Use as a convenient spray or dust to fit your gardening style.
ULTIMATE PLANT PROTECTION - Controls blight, powdery mildew, leaf spot & more for a thriving garden.

Bonide Copper Fungicide is a ready-to-use spray or dust that effectively controls a wide range of common fungal diseases in fruits, vegetables, flowers, and shrubs. Approved for organic gardening, it acts as a modern Bordeaux replacement, safe to use up to harvest day, ensuring healthy, disease-free plants with minimal effort.

Specifications

ASIN	B000RUASQE
Best Sellers Rank	#13,625 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #467 in Garden Fertilizers
Brand Name	Bonide
Customer Reviews	4.5 4.5 out of 5 stars (903)
Global Trade Identification Number	00037321007715
Included Components	Bonide Copper Fungicide, 1 lb Ready-to-Use Spray or Dust for Organic Gardening
Item Form	Spray
Item Type Name	Copper Fungicide Dust,
Item Weight	1.1 Pounds
Manufacturer	Bonide Chemical
Model Number	771
Part Number	Bonide - 771
Special Features	organic
Target Species	Plants
UPC	037321007715
Unit Count	16.0 Ounce
Warranty Description	Warranty

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19399CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

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