Pumpkin (Cucurbita pepo) is a warm-season vegetable that can be grown throughout much of the United States. Together with winter squash, pumpkins are among the most-resistant of the cucurbits to certain diseases and insect damage. However, diseases such as Phytophthora fruit rot, Microdochium blight, Zucchini yellow mosaic, Fusarium rot and gummy stem blight are several common diseases that can severely affect pumpkin production.