Used as part of an IPM program to reduce mite populations. Pull out once it is filled with drone brood freeze scratch off cappings and allow bees to remove drone brood. Then just repeat the cycle.9 1/8
100% para-dichiorobenzene, active ingredient. Designed to keep wax moths out of stored honey supers. Place crystals on the top bars of every 5th super. Never use on supers with honey in them. Air for 48 hours before use. $10.95 per lb. Cannot be sold in California.