. Beekeeping in California. Bees. 48 California Agricultural Extension Service [Cir- 10° new surroundings; the field bees apparently fail to note the landmarks of their new location on leaving for the field the day after they are moved unless the entrances are blocked to prevent an uninterrupted flight. Uniting Colonies.—When two colonies are to be united, the easiest method is to kill the poorer of the two queens and to set the queenless colony on a single thickness of newspaper placed over the one with which it is to be united. In hot weather the colonies should be united late in the afterno
. Beekeeping in California. Bees. 48 California Agricultural Extension Service [Cir- 10° new surroundings; the field bees apparently fail to note the landmarks of their new location on leaving for the field the day after they are moved unless the entrances are blocked to prevent an uninterrupted flight. Uniting Colonies.—When two colonies are to be united, the easiest method is to kill the poorer of the two queens and to set the queenless colony on a single thickness of newspaper placed over the one with which it is to be united. In hot weather the colonies should be united late in the afternoon, and one or two smal] holes punched through the paper. The bees will gnaw the paper into bits and carry it out of the hive. When this method is used, not many bees will return to their former Fig. 18.—A two-story hive with mov- ing screens in place. Note the staples fastening the parts of the hive to- gether. Transferring Bees from Trees and Walls.—Many inquiries are re- ceived from those who wish to kill or to transfer bees that have made their abode in trees or in the walls of buildings. Bees can be killed readily if exposed to the fumes of cyanogas; but this poison, being deadly to man and other animals, must be handled with care. The safest plan for any one not experienced with bees is to secure the services of a bee- keeper or the county apiary inspector. If the bees are confined to a comparatively small space, and the tree or wall cannot be opened econom- ically, cyanogas is very effective. After killing the colony, seal the open- ing so that other bees cannot enter. The cyanogas generally becomes inert after 4 or 5 hours' exposure to air. Carbon monoxide fumes from the exhaust of an automobile can be used for a like purpose, and similar precautions should be taken to protect persons or pets. An inexperienced person should not undertake to transfer a colony of bees from the walls of a house or from a box or tree because of the. Please note that these
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