No not that I know of. I have never dewormed before. I moved to Florida where it never freezes so I thought I would do it as a prevention.
There are many who follow that plan. But for what it's worth, and I am in New England, not Florida, my vets and I go on the notion that one tests for parasites before treating. Ducks are pretty resistant to many parasites, and some dewormers, I am told, are much less effective these days than they were years ago, and some think it's due to overuse.
Just offering these thoughts - we each have to come up with the best management plans we can put together based on our knowledge, experience, and gut feelings.
I find that getting a fecal test done is much less expensive than a vet visit, and perhaps you can get a test done, see if there is an issue to deal with.
When I adopted Salem, there was a fecal test, she tested positive and was treated. I kept her in quarantine, had another test done, and she was clear. I plan to get a test done later this year, we are about due for a check.