16 Farmers’ Bulletin 1222. 
It is much safer to leave the entire amount all winter than it is to 
give more before the time of unpacking in May. 
SPRING CARE. 
If the bees have been wintered as described, and if a young, vigor- 
ous queen has been introduced to each colony the preceding August, 
Fic. 4.—Map showing average date of first killing frost in fall in tulip-tree region. From 
these data the beekeeper determines when to pack bees for winter. Feeding to improve 
quality of winter stores is done after a killing frost. 
there is little that the beekeeper can do that will add to the pros- 
perity of the bees after spring brood-rearing begins and until time 
to unpack the bees. The entrances to the packing cases should be 
enlarged soon after brood-rearing begins. There will be plenty of 
stores, plenty of room for the rearing of all the brood possible, and 
plenty of protection, for the bees will not be unpacked until just 
in time to handle them in preparation for the gathering of the 
