Bonide Sulfur Plant Fungicide
The Bonide Sulfur Plant Fungicide is a micronized dust designed to prevent fungal spores from germinating, making it most effective when applied before disease development. It can be used dry as a dust or mixed with water for a thorough wet application using a pressure sprayer. This versatile product is formulated for safe use on a variety of berries, fruits, and vegetables, including apples, grapes, citrus, and cucurbits. For continuous control, repeat treatment is recommended at weekly intervals. Avoid use within two weeks of an oil spray or when temperatures are expected to exceed 80°F.
$29.03
Owner Satisfaction
4.1
/ 5
Category Rank
382
/ 393
#382 in Disease Control
Price vs Category Average
-74%
Below average
Who it's for
- Broad-Spectrum Disease Control
- Suitable for Organic Gardening
- Dual-Action Pest Suppression
Who should skip it
- High Risk of Phytotoxicity
- Visible Residue and Odor
- Limited Plant Compatibility
Key Specs
Available in 1 lb. Container and 3.25 lb. bag sizes.
Formulation is a micronized dust that can be applied dry or mixed with water.
Controls a wide spectrum of diseases including Powdery Mildew, Rusts, and Leaf Spot.
Safe for use on berries, cherries, grapes, citrus, apples, cucurbits, apricots, and currants.
Product Label available as PDF.
SDS (Safety Data Sheet) available as PDF.
What customers say
Customers highly value this fungicide for its proven effectiveness against tough issues like powdery mildew and rust, especially appreciating its status as a recognized natural control method suitable for organic gardening. Its performance often surpasses synthetic options for specific fungal problems. However, the application process presents notable challenges. Users frequently describe the product as messy and difficult to mix, accompanied by a strong, lingering odor. A key concern involves the risk of plant burn, requiring careful adherence to temperature guidelines and dilution rates, particularly for sensitive plants. Despite these handling hurdles, the overall sentiment remains positive due to its powerful results and cost effectiveness, making it a trusted staple for gardeners prioritizing efficacy.
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$29