I would apply the dew, and not apply the leaf since it may start excreting the enzymes. Maybe you could test both and tell us the enzyme concentration in the dew initially, and the dew after the leaf excretes the enzymes...and see if what I remember is correct
Anyone get any info on using drosera leaves to brew tea? Tis the only practical modern purpose I can think of using them for, and they might have a marketable flavor
Sometimes there is rotundifolia syrup/extract on eBay!!