Control With Natural Fungicides

Go to Yardener's Tool Shed for examples of these products found in independent garden centers. Go to Disease Control Products

Control With Actinovate


Actinovate biological fungicide 2oz.

by Natural Industries is our first line of defense in our yard

  • Effective aganst a wide range of fungal diseases.
  • Listed as an organic product by OMRI.
  • 2 oz treats 550 plants or covers up to 5,000 sq. ft. of turf.
  • Contains Streptomyces lydicus, a natural bacteria.
  • Easily applied from hose end sprayer.

Actinovate biological fungicide uses the beneficial bacteria, Streptomyces Lydicus, to control soil-borne diseases including pythium and fusarium as well as foliar diseases like powdery mildew. Gardeners using Actinovate as a soil drench can promote healthy root development and improve overall plant strength in addition to combating soil pathogens as the spores germinate and colonize the root zone. 100% soluble, Actinovate can also be used as a foliar spray.

Baking Soda

Baking soda (sodium bicarbonate) has been found to control powdery mildew and other mildews when sprayed on plants at weekly intervals in a solution of 1 level teaspoonful to 2 quarts of water.

Go to the Yardener's Tool Shed to check out Baking Soda Products

Control with Neem

Neem extracts have long served as natural botanical pesticides and repellents in India. They contain neem, derived from seeds of the neem tree which grows in India and elsewhere in the tropics. Sprayed on plant foliage, Azadirachtin, the versatile active ingredient, also acts as a fungicide in many situations. Look for Neem based fungicides in the Natural Fungicide section of Yardener's Tool Shed

Control with Sulfur

A single fungicide will not control all fungal diseases. Fortunately, your landscape will not experience many different fungal diseases. All yardeners should have a sulfur-based fungicide on the shelf, because it does control several common diseases, including black spot on roses, other leaf spots, anthracnose, powdery mildew, scab, and rusts on many kinds of fruits, vegetables, flowers, shrubs, and trees. Sulfur does not affect soil fungi. It has been used against plant diseases for thousands of years. It is available as a fine yellow wettable powder to be dusted on plant foliage or as a concentrated liquid to be diluted in water and sprayed.
A related product, lime sulfur, is useful as a dormant spray or as a dust according to directions on the package label. Neither the spray nor the dust should be used when temperatures are higher than 80° F. Do not spray shrubs or trees when they are flowering. Lime sulfur will stain buildings, walls, and trellises.