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Magic Gardener® Biofungicide

Powerful Biological Protection


Product Description

  • Helps prevent and control several common rose diseases
  • Broad-spectrum protection against fungal and bacterial pathogens
  • Ideal for preventive maintenance or use at the first sign of disease
  • Suitable for roses, ornamentals, fruits, vegetables, herbs and turf
  • Protects new foliage when applied regularly throughout the season

Help keep roses and other garden favorites healthy with Magic Gardener® Biofungicide. This broad-spectrum biological fungicide and bactericide contains a high-potency strain of Bacillus amyloliquefaciens, PTA-4838, to control or suppress a wide range of fungal and bacterial plant diseases.

Applied preventively or at the first sign of infection, its beneficial bacteria establish themselves across plant surfaces, helping prevent disease-causing organisms from taking hold. It’s an excellent choice for routine rose care—and can also be used on ornamentals, fruits, vegetables, herbs and turf.

Powerful Protection for Roses

Use Magic Gardener as part of your regular rose-care routine to control or suppress diseases such as:

  • Black spot
  • Powdery mildew
  • Rust
  • Botrytis blight and gray mold
  • Downy mildew

It also provides protection against other common garden diseases, including early blight, late blight, anthracnose, leaf spot and scab.

How It Works

The beneficial bacteria in Magic Gardener colonize plant surfaces, occupying space that might otherwise be available to disease-causing organisms. Once established, the bacteria produce natural compounds called lipopeptides that inhibit the germination and development of certain fungal and bacterial pathogens.

These beneficial bacteria may also stimulate the plant’s natural defense responses, helping prepare it to withstand future disease pressure.

A High-Concentration Biological Formula

Magic Gardener contains a minimum of 1.65 × 10¹⁰ CFU/mL of Bacillus amyloliquefaciens strain PTA-4838. That’s more than 16 times the concentration of a standard biofungicide formulated at 1.0 × 10⁹ CFU/mL, delivering dependable biological protection where plants need it most.

For turf grass, apply at a rate of 0.55–1.1 oz. per 1,000 sq. ft. Always read and follow the complete label directions before use.

Product Label

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Regular price 1- 4 Oz  for $24.99
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SKU: 18440

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Item 18440 cannot ship to: AE AK GU HI PR

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Product Snapshot

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We want you to be satisfied.
All nursery stock, trees, plants,
seeds and merchandise are
guaranteed for one full year.

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Over 150 Years of Gardening History

Over 150 Years of Gardening History Over 150 Years of Gardening History

Since 1866, Gurney’s has aimed
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exceed your expectations. It’s
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