Looks like the original Serenade garden concentrate has been discontinued. Is there anything that is an equal or close replacement?
Double nickel is bacillus amylioquafaciens and works good. Actinovate is also another bacteria of the streptomyeces origin. Serenade was mainly bacillus subtillus and the product bioforce has 3 billion per gram of bacillus subtilus in it otherwise there is quantum light which is a mix of beneficial bacteria
I ran into the same problem. I then discovered this product: