The stigma does not need to be wet with fluid for pollination to work. If it is dry when the pollen is added then it will still become moist (produce stigmatic fluid) as normal later. That is, as long as the daylily does normally produce stigmatic fluid and as long as the pollen is not killed by weather (high temperatures, humidity, etc.).
Adding stigmatic fluid will not change an infertile pod parent into a fertile pod parent.
Many crosses may not set pods because either one or both of the parents is infertile.
If the parents have been available for a number of years you might check the databases to see if offspring have been registered using the daylilies as parents. Often you may find that a registered cultivar is often the pod parent but not often the pollen parent or vice versa. That suggests their fertility is better when used as the pod parent or when used as the pollen parent.
