Gaubsin — a bio-preparation with insecticidal and fungicidal action. It contains a yeast culture of Pseudomonas chlororaphis subsp. aureofaciens at a concentration of 4×10⁹ CFU/cm³. The preparation is used to protect plants from various pests and diseases. Apple tree — one of the crops for which this preparation is intended. The use of the bio-preparation ensures environmentally safe plant protection without the use of chemicals. This product is produced by a subsidiary of 'ENZYM' and the Institute of Microbiology and Virology named after D.K. Zabolotny of NASU, located in Ukraine.