Antibiotics Naturally derived antibiotics are permitted for disease control. Bordeaux mixes Use with caution. Excessive use of bordeaux may cause buildup of copper in the soil and limit the continued use. Copper hydroxide Copper sulfate Use with caution. Excessive use of bordeaux may cause buildup of copper in the soil and limit the continued use.
Dormant oils Use only on woody plants as a dormant spray.
Hydrated lime Foliar application as a fungicide only. May not be used as a liming material. Hydrogen peroxide Lime sulfur Foliar application as a fungicide only. Soil pasteurization Sulfur, elemental Tree seals May be petroleum based but may not contain synthetic chemicals or fungicides. The following list of vertebrate pest control materials and practices is approved for use in organic crop production.