The only way to control mold is through strict moisture control.Your dirt base should be moist notWET!Your seed should soak for 12hrs.,Rinse several times before soaking and after soaking.The water should run clear.In doing this you have removed the mold spores along with the phytates and other nasty stuff.Drain the seed well,the seed is now soft and easily damaged.Spread out carefully for DRYING for 12hrs.Preferably in dark area,then put on bed not under the dirt .I tried this and it was not of any benafit.Spred seed spray lightly if needed.Cover with newspaper,spray till moist not WET!Next day check newspaper should be DRY!Remove newspaper let flat have air serculation for atleast 1hour.This was my big mistake at first,didnt let it breath long enough.I did manage to grow some awsome mold by watering to much.Spray seed lightly,cover seed spray newspaper moist not WET!Do not water again,repeat as needed.The key is to let it get DRY before rewatering.If its not DRY dont water.To see a master growers point of view visit wheatgrasman.com.Lots of good info,and his genisis seed is simply awsome.High gemanation ratio and it grows tall and very uniform in growth.I personaly dont use citriside,IfI have a mold issue I sray it with bakingsoda water.Baking soda is alkaline and mold needs an acidic enviorment to grow.Best to harvest shortly after spraying,wheatgrass doesnot like an alkaline enviorment.Good luck and happy growing!