I recently published a book chapter with my colleague about how to optimize fungicide application . It is free to download, so, if you are looking for some bed time reading material, it may help you sleep. ;) The title sounds like we are developing a practical application guide for fungicide, and that was our intention at the beginning, but we did not have a space in the chapter (and time) to explore that. Instead, we showed several examples of how research projects can be used to help optimize fungicide application. Hopefully we will have another opportunity soon to actually work on more practical chapter.