Conqueror oil or Greenguard

Hi Yvonne,

Conqueror Oil should be safe to use without harming bees, it states it on the bottle it is non harmful, but as an extra precaution use any product in the evening when the bees are not around. I would be hesitant to use Greenguard as I believe it is not manufactured anymore. Try a different fungicide such as Natures Way Fungicide but again use in the evening and double check the directions and label on the bottle at the time of purchase.

Good Luck and Thank you for protecting our bees.