Are your squashes rotting on the vine? It may be cucurbit wet rot.
Cucurbit wet rot is caused by Choanephora cucurbitarum fungi. Also known as Choanephora fruit rot and wet rot, this fungal disease also affects melons, pumpkins, and other cucurbits, as well as beans and peas, and okra.
Cucurbit wet rot symptoms
Cucurbit wet rot first appears as a soft area on the blossom end of fruit or pods. Those soft spots can also appear around wounds in the fruit. Those softened areas become covered with soft white fungal growth that eventually turns purplish-black. Eventually, the entire fruit rots.
Cucurbit wet rot management
Like most things that are rotting, cucurbit wet rot needs moisture to turn into a problem. You can prevent it with good drainage and by allowing the soil to dry out between waterings. Fungal spores can travel on the wind, with insects, or in splashing water. While there isn’t anything we can do about the wind, there are things we can do to prevent wet rot:
Once a fruit is infected, it should be removed and tossed in the garbage.
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