Della, you're right. Tiny little seedlings do not like it one bit! A much weaker solution must be used on the little ones--and it works. Think of it the same way you think of aspirin. You wouldn't give a little baby a 5 grain dose like an adult; no, you'd use a lose dose or something like 80 mg instead. Full grown plants can take a pretty good charge without damage but the little ones are really sensitive.