Skip to content
FREE Same Day Shipping - Order by 3pm CST (business days)
FREE Same Day Shipping - Order by 3pm CST (business days)

Calcium Polysulfide

Type: Fungicide, Insecticide, Miticide

Mode of Action: For fungi, it interferes with essential enzymes, leading to the breakdown of cell walls and eventual cell death. When used as an insecticide or miticide, it disrupts the metabolic processes of insects and mites, ultimately leading to their demise.

Common Product Names: Lime-Sulfur Solution & Sulforix

What is it?

Calcium polysulfide, often referred to as lime sulfur, is a yellowish to reddish liquid with a strong sulfurous odor. It is produced by reacting calcium hydroxide with sulfur, resulting in a compound that has been used for over a century in agricultural and horticultural practices. Known for its wide range of applications, calcium polysulfide is a favored choice among organic farmers due to its natural origin and broad-spectrum efficacy.

How does it work?

Calcium polysulfide works by releasing sulfur, which acts as a toxic agent to fungi, insects, and mites upon contact. For fungi, the sulfur disrupts cellular metabolism and enzyme function, leading to the breakdown of the fungal structure. In insects and mites, it interferes with their respiration and other vital processes, effectively eliminating them.

As a fungicide, calcium polysulfide is mainly curative, addressing existing fungal infections. It is often applied as a post-emergent treatment in the case of pests and diseases, particularly in dormant periods for crops or plants.

Benefits

  • Organic compatibility: Approved for use in organic farming.
  • Curative properties: Particularly effective in treating existing fungal infections.
  • Residual action: Provides longer-lasting protection after application, particularly as a fungicide.
    • Previous article Spiromesifen

    Products With Calcium Polysulfide

    • Sold out

      Lime-Sulfur Solution

      Miller Chemical
      Active Ingredient:
      Calcium Polysulfide: 25%
      $85.00 - $85.00
      $85.00
      $85.00 - $85.00
      $85.00
      Out of Stock

      $85.00 - $85.00
      $85.00
      $85.00 - $85.00
      $85.00
      Sold out

    • Sulforix

      Miller Chemical
      Active Ingredient:
      Calcium Polysulfide: 27.5%
      $149.95 - $149.95
      $149.95
      $149.95 - $149.95
      $149.95
      in stock

      $149.95 - $149.95
      $149.95
      $149.95 - $149.95
      $149.95

    Active Ingredient

    ×

    Compare products

    {"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

    Select first item to compare

    Select second item to compare

    Select third item to compare

    Compare

    Active Ingredient

    ×