I went out to drop a final gallon/hive on my furthest outyard this afternoon. Took my wife's minivan instead of my truck so no tools handy :roll:. No problem filling up all the empty feeder buckets except one. Because they had been empty for a few days, one hive decided to completely propolize the screen that is melted into the lid. When I turned the bucket over I noticed that no syrup was coming out (until the vacuum held it in). I tried to scratch off the propolis with the only thing I brought, a hive tool. Needless to say I was not very successful. I did manage to open up a space the size of a pencil eraser but that was it. No matches or anything in the minivan to even burn or melt the propolis off. Given that the bees will know there is syrup up there through the tiny hole I managed to open up, will they remove or move the propolis to access the syrup more readily?