Someone told me that when they were visiting someplace up north one time that a person (can't remember who) was going around with a spray can and spraying directly down into the fans of his plants. This person asked what he was doing and he said that he sprays bug spray (not sure what kind) into the fans and ever since he started doing that he no longer got spring sickness. Since it is thought that one of the causes may be a bulb mite I can see where the bug spray could help keep it at bay.
Other than that I don't think there is any control or prevention for it yet
