Tried coconut husks as smoker fuel this weekend, they light quickly but just don't last very long. I'm going to keep them as smoker fuel to light up other stuff like small branches or wood shavings.
I was using grapefruit leaves as a fuel, read somewhere that it would knock the mites off the girls. Instead it really got them worked up, the hives stayed aggressive for about two days after using the dried grapefruit leaves in the smoker. Even the residue left in the smoker would work the girls up when smoked. Ended up cleaning out the tar with a torch just to calm the yard down. Couldn't see any change with the mite load but it was only one application.