Apiculture Factsheet #401
Spring Management
Beekeeping is a year round process. Management applied today will
affect the colony months later. Winter preparation in the fall will
determine the condition of colonies in the spring, while spring
manipulation will affect colony performance during the summer
season. Management should therefore not only meet current colony
needs but also include its seasonal requirements.
Spring management actually begins on a mild day in mid winter.
The lid can be lifted to check whether the colony is alive. If the
colony has died, remove the equipment and store. If the colony is
alive, determine that there is sufficient food accessible to the
bees. Cold weather may prevent the cluster from moving to stored
food only one frame away, resulting in starvation. In such
situation, the empty frames should be exchanged with several frames
containing honey and some pollen. Before inserting these frames,
pre-warm them to room temperature. Should there be no food reserves
in the hive, place granulated sugar on top of the inner cover as
emergency food. To prevent food shortage and starvation
in early spring, feed the colony 30-45 kg (60-90 lbs) of sugar syrup
or honey in the fall.
By late February (earlier in coastal BC), most colonies have
begun brood rearing. Early brood is important as the colony needs to
replace its wintered adult bee population. On a mild day, a single
frame from the centre of the cluster can be carefully removed and
checked for brood, honey and pollen. If brood is absent, spotty or
showing raised cappings, one of the following problems may exist:
- a queenless colony
- a defective queen (e.g. drone layer)
- lack of pollen
- presence of brood disease
- presence of parasitic mites
Queenless colonies, or those with a failing queen, should be united
with a strong colony or requeened. At time of the year, only imported queens
are available from Australia, New Zealand, Hawaii or the continental
USA (for details, see Factsheet #002 - Importing Queens and
Packaged Bees).
Pollen is the bee's dietary source of protein and without it no
brood can be raised. Combs of pollen should be placed directly
beside the brood as bees will not cross an empty comb to get it.
Should there be insufficient pollen in the hive, a pollen patty,
pollen supplement or pollen substitute should be provided. For
detailed information on feeding pollen substitutes, refer to
Factsheet #410 - Nutrition and its Effect on Bee Management.
During initial inspection, note the number of brood chambers
occupied by the cluster. If the cluster occupies two brood
chambers, the bottom chamber should not be removed. When only one
brood chamber is occupied (almost always the top super), the
bottom super can be removed. One brood chamber requires less
energy for keeping brood warm and the bees have closer access to
the entrance of the hive. Before removing the bottom brood
chamber, inspect for pollen. Combs with pollen may be added to the
occupied brood chamber to stimulate brood rearing.
During inspection, clean the bottom board. Dead bees, debris
and moisture often accumulate during winter, sometimes blocking
the entrance. Debris removal requires a lot of energy from the
bees. For disease prevention, bottom board scrapings should be
removed from the apiary and burned.
Spring Feeding
Spring feeding may begin in mid March. The main purposes of
spring feeding are:
- provide food stores for the cluster
- increase pollen reserves to stimulate egg laying and replace
wintered bees
- provide a method of medication for the prevention of bee
diseases (only when necessary)
Generally, 5 kg (10 lbs) of sugar syrup for each colony is
sufficient. The syrup must be thin, prepared by mixing one part
water with one part sugar by volume. In case AFB is detected,
one teaspoon of antibiotic may be added to each gallon of syrup.
Fumidil B may also be added to the first gallon. Do not add
medication to hot syrup but wait until it is lukewarm (refer to
Factsheet #204 - Antibiotics for
Bee Disease Control).
Note: In case brood disease is detected,
remove the brood frame(s) and burn in order to prevent more serious disease
development later in the season (for more information, see
Factsheet #205 - Honeybee Disease
Detection).
There are various methods of feeding sugar syrup to bees. The
most common method includes the inverted jar, bucket or pail
with small nail holes in the lid, placed over the hole of the
inner cover. An empty super is placed over the feeder and
covered with the hive lid so that it is enclosed, preventing
robbing and heat loss. Other feeding methods include the frame
feeder that occupies the space of one frame on either side of
the super, and the Miller feeder on top of the hive.
Entrance Reducers
Entrance reducers help to prevent robbing during dearth
periods. As regular flight begins in late March or early April,
entrance reducers should be placed on smaller colonies. This
enables the small colony to guard against heat loss and robbing.
Colonies Killed in Winter
A number of colonies die each winter as a result of winter
severity, colony weakness, disease, pests, etc. It is important
to determine the cause of death so that surviving colonies will
not be affected in case a disease is present. The equipment of a
dead colony should be removed from the apiary and placed in bee
tight storage or destroyed in case of disease.
Requeen or Not Requeen
The easiest time to requeen is in spring. To select a colony
for requeening, several factors need to be considered including
last year’s performance, overall temperament and age of the
queen. Colonies should be requeened annually or every second
year. Older queens often experience declines in egg-laying and
may become drone layers, produce poor brood patterns or may
suddenly be superseded.
To develop a systematic method of requeening, one half of the
colonies in the apiary should be requeened annually in the
spring. A surplus of queens can be ordered and kept in nucleus
colonies placed on top of strong colonies and separated by a
solid inner cover. The nucleus colonies can be used for
emergency requeening, be united with a weaker colony, or allowed
to build up on their own during the season.
Increased Self-Reliance
In early spring, only imported queens can be used,
as locally produced stock will not be available until the second
week in May. Instead of applying a management program that depends
on the availability of queens in early spring, one could also requeen in June and July when high quality queens can be produced
locally or purchased at lower prices. At that time, requeening will
cause minimal disruption to brood rearing. However, requeening at
the height of season is not attractive to many beekeepers because it
impacts honey production. Alternatively, wintered colonies can be
stimulated in the spring to increase population so that splits can
be made when queens become readily available. The nucleus colonies
established from the splits will each receive a young queen. They
will be placed in a separate apiary for the remainder of the season
and prepared for winter in the fall. After honey harvest, the
originating colonies from which the splits were made can be used
to bolster the nucleus colonies, where needed, or killed off.
Next spring, the wintered nuclei will build up to become the
honey producing colonies, while they in turn will produce a
split in June-July. Average winter mortality should be taken
into account for establishing the correct number of nuclei each
summer. The success of this “15-month” management cycle is
dependent on experience, quality of stock, locality and average
wintering success. Attempts to incorporate this system should be
done progressively. For further information about spring
management, refer to
Factsheet #103 - Beekeeping Calendar for
British Columbia.
02/06
Return
to Apiculture Factsheets
Return to Apiculture Home Page
|