Horn Silica (BD 501) | Instructions for Use on Foliage

One unit is 1 teaspoon.

One unit treats all applications up to one acre.

What you need:

  1. 3 gallons of lukewarm rainwater (or chemical free water) for every 1 unit of BD 501.
  2. A clean container large enough to prevent splashing out (chemical-free).
  3. A light-weight, but strong stick.

Directions:

Stir vigorously in one direction until liquid forms a deep crater. Quickly reverse direction and repeat. Continue this alteration every minute or so for one full hour. Use immediately.

Spraying:

  • Spray in the morning, just as the sun is touching the leaves.
  • Spray as soon as possible after stirring; it deteriorates rapidly if left standing. Pour mixture through a paint strainer, and then use an ordinary sprayer for a fine mist.
  • Spray on foliage, but it will do no harm to soil.
  • Cover one acre per unit.
  • Always use chemical-free, clean utensils.

Storage:

  • Keep in any dry or sunny place until used.
  • It keeps indefinitely if dry. Spray only on areas where 500 has been used previously.

When to use:

  • Only after plant roots are well established.
  • Use as early in the morning as possible.
  • Use when there is no wind.
  • Use with seedlings, when 2nd or 3rd leaves have unfolded.
  • Use only following blossoms on trees or shrubs, before leaf growth. Use on foliage emergencies—when diseases or pests have destroyed much foliage.
  • Usually in late spring or early summer when warm weather is well established.
  • Never when there is a danger of frost.
  • Never just before a rain.
  • Never before transplanting.
  • Never use on young evergreens and fruit trees. You can use when they are of bearing age.
  • Use especially during wet seasons with too little sunshine.
  • Use indoors or in greenhouses during the shortest days of the year.

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Frequently asked questions

Horn Silica (BD 501) is a biodynamic preparation used to enhance photosynthesis, strengthen plant immunity, and improve crop quality by spraying it onto the foliage of plants.

Horn Silica (BD 501) should be mixed with water and sprayed onto the foliage of plants. It is recommended to apply it during the early morning or late afternoon when the sun is less intense.

The best time to use Horn Silica (BD 501) is during the growing season, particularly when plants are in the early stages of leaf development. This typically occurs in the spring or early summer.

Yes, Horn Silica (BD 501) can be used on a variety of plant types, including vegetables, fruits, and ornamental plants. However, it is always best to test a small area first to ensure there is no adverse reaction.