We have been fogging our 1oo colonies since May 1st as consistantley as possible. Found high percentages of Varroa in one yard. Important note: these mites were found on sealed drone brood. We brought back about 30 mites in a vial and put them on a clean freshly painted outer cover and Blasted them with FGMO. After about 5 minutes they were still active. We again fogged them and went and had dinner. After about 45 minutes we returned to find them seemingly unharmed and moving about. Can anyone explain this if this fogger is supposed to suffocate them then why did they live so long? Is the fogger method only effective on adult mites? Do these young Larvae State mites if you will breath through sporacles this early or not? Can anyone explain or comment?