This method is often more effective than using plastic mulch. Start a fungicide spray program when the cucumber plants begin to vine. Contact your Cooperative Extension agent for the currently recommended fungicides. Choanephora Wet-Rot Choanephora cucurbitarum commonly causes a fruit rot of summer squash. This fungus infects wilted blossoms and then spreads to the attached fruit.
Infected fruits decay rapidly, becoming soft and watery.
The Choanephora fungus looks like many small black-headed pins sticking out of a pincushion. Its presence on rotting tissue is diagnostic for wet rot. Use fungicides to reduce fruit rot problems. Contact your Cooperative Extension agent for the currently recommended fungicides. Fusarium Wilt Cantaloupe, cucumber and watermelon are susceptible to Fusarium wilt.