Alternaria leaf spot (ALS) and head rot in broccoli and other brassicas in an important disease in New York and has gotten more serious in recent years. 

The 2023 updated "Cheat Sheet" includes conventional and organic fungicides that have been field tested in seven fungicide trials in broccoli from 2018-2023, their relative performance for control of ALS, active ingredients, FRAC groups, rating for risk of fungicide resistance, pre-harvest interval, and use restrictions. It includes some additional products including generic options for Inspire Super and Switch, which may offer some cost savings. Many tips on how to build a successful fungicide program for ALS and downy mildew that adheres to best fungicide resistance management are included.