It is very doubtful that will help much because they are so small right now. By July it would be easier to see them. It might work to flood the beds and scoop up any in the water. Removing worms before they reproduce would reduce numbers. 
Unfortunately, jumping worms out compete non jumping worms for food and the worms that are most common here leave any area infested with jumping worms.

For the latest on what to do please see 

https://extension.umn.edu/identify-invasive-species/jumping-worms