Bioworks Sandrine - Copper Fungicide - OMRI Certified - 1 Gallon (4/Cs) (144/Plt)

Sandrine is a liquid copper soap fungicide designed to suppress a broad spectrum of fungal and bacterial plant diseases with reduced phytotoxicity and a short re-entry interval.

Chemical Composition and Formulation
The active ingredient is Copper Octanoate (Copper Soap). It is formulated as a true liquid soap, combining soluble copper with fatty acids. This formulation is designed to use a lower concentration of copper than traditional copper soaps. The U.S. Environmental Protection Agency (EPA) registration number is 67702-2-68539.

Functional Mechanism and Design
The product functions as both a contact fungicide and bactericide. The soap component, derived from fatty acids, evenly coats plant surfaces and disrupts pathogen cell membranes. This action allows the copper ions to penetrate and interfere with the pathogen's enzyme systems, effectively stopping disease development. The combination is designed to enhance leaf coverage while minimizing copper residue.

Target Applications and Performance
Sandrine is labeled for the suppression of diseases including brown rot, fire blight, leaf and fruit spot, powdery mildew, and scab on a variety of crops. It is noted for being gentle enough for use on crops traditionally sensitive to copper. The product is intended for use as part of an integrated pest management (IPM) program, with applications beginning at the first sign of disease.

Application Specifications and Protocol
The product is applied as a foliar spray. It is noted for its tank-mix compatibility with a wide range of other agricultural products. A key operational feature is its 4-hour restricted entry interval (REI), which is shorter than many other fungicides. It also has a 0-day pre-harvest interval (PHI) for labeled crops. Users must refer to the official product label for specific application rates, which vary by crop and disease.

Handling and Safety
The product bears a CAUTION signal word. Applicators must wear long-sleeved shirt, long pants, shoes plus socks, and chemical-resistant gloves during handling and application. The 4-hour REI must be observed. The product is registered for use in specific states, including AK, CT, DE, GA, HI, ID, KS, KY, MD, ME, MO, MS, NH, NV, OH, OK, PA, RI, VA, WI, and WV, with registration pending in California. The official Safety Data Sheet (SDS) must be consulted for complete handling and safety details.