From the University of Wisconsin Extension Division;
"If you grow daylily varieties that suffer from severe leaf streak every year, consider applying fungicides containing chlorothalonil, mancozeb or thiophanate-methyl to prevent the disease. Use fungicides only during periods of wet weather."
My concern is the definition of "periods of wet weather." Is a period of wet weather a couple of days of high humidity or is it a couple of weeks of intermittent showers?
This is one of my milder cases
This is some foliage I removed from more severe cases yesterday;
Here in New Mexico we don't typically have periods of wet weather as most might imagine. Last year our wet weather came to under 8 inches rain and snow for the year. Sue, we don't anticipate wet weather even if NOAA gives us an eighty percent chance, which they seldom do.
Would wet weather include saturation watering beneath the plants?
I haven't chosen a specific fungicide and was really looking for advice.
Thanks again to all who help.
Charley
