I realize this is an old question, but for those researching the product currently, I was told by a reliable source to use 1 ml per 5-10 gallons. It is highly concentrated. Not to say the other answer is "wrong", as this is basically inoculating the root zone in dwc--everyone's situation is unique. individual circumstances and environmental conditions are going to play a factor in how much one should use.

Has anyone used this on zinnias? Battling powdery mildew.

It is quite efective on powdery mildew, it is however best applied prophylactically because it's a micro organism and needs time to colonize the plant. If the mildew is already established you should treat it with Daconil first to get better control

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Root 98 Warehouse Garden Friendly Bio Fungicide Organic (8 oz)

Product ID: 43014880

Details

Brand
Root 98
Item Form
Spray
Item Weight
8 ounces
Liquid Volume
8 fluid ounces
Specification Met
USDA

🌿98.85% Bacillus amyloliquefaciens strain D747

♻️100% organic & garden safe

🛡️Broad-spectrum disease control

¥6721

Duties & taxes included

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌱 Defend your garden organically—because your plants deserve the best!

TRUSTED BY THOUSANDS - 4.5-star rating from 800+ gardeners who refuse to compromise on plant health.
ALL IN ONE GARDEN DEFENDER - Controls 30+ diseases across vegetables, fruits, ornamentals, and turf with one spray.
POWERFUL ORGANIC PROTECTION - Harnesses 98.85% Bacillus amyloliquefaciens D747 for unbeatable biofungicide action.
CONCENTRATED COST EFFECTIVE - Just 1 teaspoon per gallon treats up to 1,000 sq. ft.—maximize your garden’s health with minimal effort.
ECO FRIENDLY USDA CERTIFIED - 100% organic formula that’s safe for your home garden and the planet.

Root 98 Warehouse Garden Friendly Bio Fungicide Organic (8 oz) is a USDA-certified, concentrated biofungicide containing 98.85% Bacillus amyloliquefaciens strain D747. It offers broad-spectrum control of over 30 plant diseases affecting vegetables, fruits, ornamentals, and turf. Designed for home gardens, it’s eco-friendly, easy to use, and highly rated by thousands of satisfied customers.

Specifications

ASIN	B014174BZM
Best Sellers Rank	#57,229 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #23 in Moss Control
Brand	Root 98 Warehouse
Brand Name	Root 98 Warehouse
Customer Reviews	4.5 out of 5 stars 801 Reviews
Included Components	1 bottle
Item Form	Spray
Item Type Name	8 oz Garden Friendly Fungicide
Item Weight	8 ounces
Liquid Volume	8 fluid ounces
Manufacturer	Southern Ag
Model Number	5171
Part Number	5171
Special Features	special_feature
Specification Met	USDA
Target Species	Dog
UPC	051538051712
Unit Count	1 Fluid Ounces

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