I think this illustrates the importance of treating for mites. If you think you don't have them and you do, I call that beekeeper denial. Treat your bees NOW. It is starting to get late in the treatment window of time.
Click on the pics for a bigger pic.
|Photo by Julie D. You can see the dead maroon colored mites scattered all over the screen bottom board slide. Hive 1|
|Photo By Julie D. Hive 2|