multiple receptacles trap entrance unit 5 is made from a solid block of wood horizontal bore 512 extends through the unit to form two entrance holes and a common plenum connecting additional entrance holes 511 and vertical bores for receptacle adapters 54 as depicted in fig5 b entrance holes 511 are bored at angle b between 10 and 60 degrees from horizontal to provide sheltered entrance holes fig6 depicts an insecticide gel applicator according to certain aspects of the present invention applying insecticide gel 61 into an existing bee nest bore 62 shown in a cross sectional view applicator 6 consists of syringe 63 preferably with a capacity of about 60 cc with a 150 mm length of nominal u00bc inch diameter pvc flexible tubing 64 attached to the outlet gel 61 is composed of an insecticide preferably a pyrethroid more preferably permethrin in a concentration of 0 2 to 2 blended with a non volatile non hardening non skinning thixotropic gel preferably petroleum jelly the recommended application rate is from 0 25 cc to 1 cc per bore annually when bees contact the gel it sticks to their body and they will further spread it over their body as they attempt to clean it off enhancing effectiveness the insecticide gel is a mild repellent and should never be applied to a trap the attractiveness of an actual bee nest will typically override the repellent nature of the insecticide gel and treated nests will continue to kill bees for up to one year after a single treatment experimental observation also indicated that carpenter bee traps containing live bees were significantly more productive than empty traps or traps containing only dead bees live bees in the trap actively make distressed buzzing noises which appear to be the.