Bayer Serenade ASO

Serenade ASO is a highly effective biological fungicide and bactericide developed by Bayer's CropScience division. It utilizes the beneficial bacterium Bacillus subtilis strain QST 713 to combat a wide range of plant pathologies in commercial agriculture. This innovative microbial product provides farmers with a sustainable tool for crop protection, offering both direct activity against pathogens and the stimulation of the plant's natural systemic resistance.

The Serenade brand was originally developed by AgraQuest, an American biotechnology company founded in California. In 2012, the global life sciences giant Bayer acquired AgraQuest, integrating the biological portfolio into its CropScience operations. Today, Serenade is a cornerstone of Bayer's biological products, produced in multiple facilities worldwide—notably in the United States and Mexico—to serve global agricultural markets. Bayer remains the ultimate owner, managing the brand through its headquarters in Leverkusen, Germany, while utilizing local distribution partners like Tajura Agricultural Development Company in specific regions such as Libya.