Synthetic substances allowed for use in organic crop production.

CFR · 2024-01-01 · US · Title 7

In accordance with restrictions specified in this section, the following synthetic substances may be used in organic crop production: (a) As algicide, disinfectants, and sanitizer, including irrigation system cleaning systems. (1) Alcohols. (i) Ethanol. (ii) Isopropanol. (2) Chlorine materials—For pre-harvest use, residual chlorine levels in the water in direct crop contact or as water from cleaning irrigation systems applied to soil must not exceed the maximum residual disinfectant limit under the Safe Drinking Water Act, except that chlorine products may be used in edible sprout production according to EPA label directions. (i) Calcium hypochlorite. (ii) Chlorine dioxide. (iii) Hypochlorous acid—generated from electrolyzed water. (iv) Potassium hypochlorite—for use in water for irrigation purposes. (v) Sodium hypochlorite. (3) Copper sulfate—for use as an algicide in aquatic rice systems, is limited to one application per field during any 24-month period. Application rates are limited to those which do not increase baseline soil test values for copper over a timeframe agreed upon by the producer and accredited certifying agent. (4) Hydrogen peroxide. (5) Ozone gas—for use as an irrigation system cleaner only. (6) Peracetic acid—for use in disinfecting equipment, seed, and asexually propagated planting material. Also permitted in hydrogen peroxide formulations as allowed in § 205.601(a) at concentration of no more than 6% as indicated on the pesticide product label. (7) Soap

official document · source cfr-2024 · id 7:§ 205.601