Wettable Sulfur Powder

• Natural & Organic – Sulfur is a naturally occurring chemical that has been used in organic farming for hundreds of years. It is safe for plants, people, and the environment
• Controls Fungus & Diseases – Quickly eliminates rust, leaf spot, black spot, powdery mildew, and blight
• Controls Insects – Effective against mites (spider mites, two-spotted mites, silver mites), thrips, scale, and more. Safely clear chiggers from your yard!
• Safe for Plants – Sulfur quickly controls fungus and insects without damaging treated plants. Safe for use on roses, flowers, vegetables, fruits, fruit trees, shrubs, and most house plants
• Easy to Use – Apply as a dust or mix 4 Tbsp with 1 Gallon of water for a Ready-To-Use spray
$14.99
In stock
SKU
SW4

Wettable Sulfur is a fine powder that you can mix with water to form a natural, organic fungicide. It kills fungus on contact and prevents the formation of fungal spores that spread the disease. Over 2,000 years ago, the ancient Greeks wrote about using Sulfur to fight off rust in their wheat crops, so it has a long-established history. In addition to rust, Sulfur will kill off powdery mildew, rose black spot, and other fungi. It is also an effective pesticide against mites, aphids, and thrips.

Other Uses of Sulfur

If you want healthy, vibrant plants, you need to make sure they have enough Sulfur!

Plants require Sulfur to produce chlorophyll, which gives leaves their green color and converts sunlight into energy via photosynthesis. Plants without enough Sulfur turn ugly, yellow, and sad, a state called “chlorosis.” But it’s not just about looks. Sulfur deficiency means plants lack the energy needed to grow and produce flowers and fruit. You especially need to make sure your soil has sufficient Sulfur if you are growing beans or any of the cruciferous vegetables in the cabbage family, such as spinach, broccoli, cauliflower, or Brussels sprouts. And in mustard greens, onions, and garlic, Sulfur also produces flavor.

To give your plants the Sulfur they need, add Granular Sulfur Pellets to your soil. Plants can only take in Sulfur through their roots after micro-organisms in the soil convert Sulfur into a form they can absorb. Adding granular Sulfur to your soil will also condition it, lowering the pH and reducing sodium levels. If you live in a region where the soil is sandy, be prepared to give your plants extra Sulfur because sandy soil does not hold Sulfur well. But in regions with clay soil, you will want to add a little less.

How to Apply Wettable Sulfur

For use as a fungicide and insecticide for your flowers, fruits, vegetables, trees, and shrubs. Please carefully adhere to the guidelines below. Apply in the evening or early morning, when the air is calm.

As dust: Apply by hand or shaker to all plant surfaces.

As spray: Mix 4 Tbsp. Wettable Sulfur / 1 gal. water.

Application

Roses / Shrubs / Flowers
  • For Powdery Mildew, Leaf Spot, Black Spot, Botrytis Blight, Red Spiders
  • Apply as spray or dust as soon as disease or mites appear
  • Repeat every 5-7 days and after rains
Vegetables
  • For Leaf Spot, Rust, Powdery Mildew, Early and Late Blight, Mites (Tomato Russet, Spider, Two-Spotted, Pacific)
  • Apply as dust at first sign of disease. Re-apply every 7-10 days
  • Not for use with cucumbers, cantaloupes, melons, squash, some beans
Apples
  • For Scab, Powdery Mildew, Mites
  • Apply as spray during pre-bloom, bloom, petal fall, shuck
  • Administer additional sprays as needed
  • Reduce to 1 Tbsp. / 1 gal. water in hot weather
Pears
  • For Scab, Powdery Mildew, Mites (Blister, European red, Two-Spotted)
  • Apply as spray during pre-bloom, pteal fall, shuck and as a cover spray
  • Repeat every 7 to 10 days
  • Reduce to 1 Tbsp. / 1 gal. water in hot weather
  • Anjou and Comice Pears are sensitive and may be injured
Peaches, Nectarines
  • For Brown Rot Blossom Blight, Coryneum Blight, Rust, Powdery Mildew, Scab, Peach Silver Mites
  • Apply as spray during pre-bloom, boom, and post-bloom
  • Repeat every 7 to 10 days
Cherries
  • For Blossom Blight, Brown Rot, Powdery Mildew, Leaf Spot, Rust, Mites (Silver & Flat)
  • Apply as spray during pink, bloom, petal fall, shuck, and as a cover spray
  • Repeat every 7 to 14 days
  • Spray post-harvest as needed to treat leaf spot
Plums, Prunes
  • For Brown Rot Blossom Blight, Scab, Powdery Mildew, rust, Leaf Spot, Silver Mites
  • Apply as spray during pre-bloom, boom, and post-bloom
  • Repeat every 7 to 10 days
Citrus
  • For Rust Mite
  • Apply as spray at first sign of damage. Repeat as necessary
  • Use throughout the year to maintain control

For Chigger Control

Apply dust to entire yard, garden, and trees. 3 lbs. / 1,500 sq. ft.

Warning It is a violation of Federal law to use this product in a manner inconsistent with labeling. Keep out of reach of children. Store in a cool, dry place.

Do not use within 2 weeks of an oil spray treatment or within 3-6 weeks for citrus.

May scorch foliage during high temperatures (90° F or higher).

Sulfur will emit toxic fumes if ignited.

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