Swarm Control. 17 
above the brood-chamber; that is, between the brood-chamber and 
the supers in which work has already been started. This induces 
the bees to begin new work promptly and takes additional thou- 
sands of young bees out of the brood-chamber into, the supers. 
(See Farmers’ Bulletin 1039.) In extracted-honey production when 
empty combs are used in the supers it is not so essential to place the 
newly added ones below those already on the hive, but to do so 
undoubtedly entices more bees out of the brood-chamber than 
when they are placed on top of the other supers. Shallow extract- 
ing supers are usually tiered up in the same manner as comb-honey 
supers, each newly added one being: placed below the supers already 
on the hive during the time that swarming is imminent. If full- 
depth extracting supers are used, half of the combs may be removed 
from the middle of the partly filled super and empty combs or 
frames of foundation taken from the new super may be put in their 
place. The partly filled combs that were removed are then placed 
in the middle of the new super, after which it is placed on top. 
This process may be repeated if necessary as often as it is desirable 
to give additional room close to the brood-chamber. 
Great care should be taken, especially in comb-honey production, 
to discontinue such a rapid expansion of super room in time to have 
the work well finished. During the latter part of the honey-flow 
empty supers may be added on top of those already on the hive in 
either comb-honey or extracted-honey production, to prevent too 
much incomplete work at the end of the honey-flow, for at this time 
there is less probability of swarming than earlier in the season. 
In regions where the swarming season occurs during the honey- 
flow it is of great importance that every condition possible be pro- 
vided that will entice the younger bees from the brood-chamber into 
the supers and the field bees from the brood-chamber to the fields. 
If the brood-nests can thus be kept free from too many unemployed 
bees during the swarming season there should be little inclination to 
swarm. 
INFLUENCE OF IDLE FIELD BEES. 
The brood-chamber may be congested with bees, however, and 
swarming may sometimes occur apparently through no fault in the 
distribution of young bees within the hive, since a crowded condition 
may be brought about or intensified by the field bees as a result of 
certain peculiarities of weather conditions and honey-flow. 
The presence of a large number of field bees within the hive dur- 
ing the swarming season evidently greatly increases the tendency to 
swarm. When the field bees are out of the hive the colony is relieved 
of their presence during the heat of the day when they would add 
26646°—21——3 
