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Non-chemical fungicides

March 2, 2008

Useful against powdery mildews, downy mildews, scab, rust and damping off

  • Spray plants that are susceptible to fungus every two weeks as a preventive measure.
  • These products are effective if used at the first sign of symptoms.
  • These products are not effective once a disease has become well established.
  • Preventive applications of silica (horsetail or potassium silicate) may reduce the incidence of powdery mildews, because the silica forms a protective coat over the leaf cells.
Baking
soda
Potion
  • Dissolve 1 Tbsp of baking soda in 1 litre of water.
  • Add a drop of liquid dish soap to make the mixture adhere to plant leaves.
Chamomile Infusion
  • Steep 1 tsp. of chamomile leaves in 1 cup (250 ml) of water.
Garlic Potion
  • Soak 100 g of chopped garlic in 2 Tbsp of mineral oil (baby oil).
Horsetail . Infusion

  • Boil 1 cup (250 ml) of horsetail in 2 litres of water for 20 minutes.
. Maceration

  • Steep 50 g of fresh horsetail in 1 litre of water for 24 hours.
  • Dilute this concentrate, using 200 ml per litre of water.
  • Spray on plants every 2 weeks.
Milk Milk
  • Stir together equal parts of milk and water.
Mustard Ground seeds
  • Stir 1 part of finely ground seeds into 20 parts of water.

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