Guess the Pest! May 17 Answer: Pythium

David Owens, Extension Entomologist, owensd@udel.edu

Congratulations to Bob Leiby, Nichole Krambeck, and Chris Burkhart for answering last week’s double headers! Now, the question was what was killing off my cantaloupe seedlings. There is a long answer to the ‘I forgot to follow up’ but strongly suspect Pythium. I was really worried that it might damage an early season cucumber beetle trial. Folks, I accidentally planted seed treated with FI400 and 4 weeks after germination it killed caged cucumber beetles dead as doornails. Oops. I had grand plans for those beetles! Needless to say, I don’t have much cucumber beetle activity in my trial field yet.
What is wrong with this cantaloupe transplant?