We confirmed downy mildew in pumpkin leaves from Holmes County yesterday, and in zucchini from Guernsey County today. Cooler weather, overcast skies and rain or heavy dews are ideal for spread of downy mildew. Downy mildew fungicide recommendations are the same for squash and pumpkins as for cucumbers and melons. It is too late for the zucchini shown in the photo, but growers of winter and summer squash, pumpkins, cucumbers and melons should be on a fungicide schedule to protect their crops through the end of the season. 