BUD VARIATION IN THE MARSH GRAPEFRUIT. HI 
the limbs in which they were inserted the limbs should be cut off 
about 6 inches above the buds, and the cut surfaces should be coated 
with grafting wax. The tree trunks and all portions of the limbs 
left after the tops have been removed should be coated heavily with 
whitewash or other protective material, in order to prevent possible 
injuries due to sunburn and exposure. 
From time to time all growth except that from the select buds 
should be carefully removed; otherwise portions of the new tree 
heads will be made up of sprouts from the old limbs. In some cases 
the tender growth from the select buds may be attacked by insect 
pests, in which event the insects must be promptly killed or removed. 
It is a good plan to protect this growth during its first exposure to 
winter weather by means of bundles of grass, cornstalks, or other 
suitable material. 
After one season's growth of the select buds the stubs of the origi- 
nal limbs should be cut off just above the buds, making the cuts 
oblique in order to facilitate their healing. The cut surface should 
be covered with grafting wax or some other protective material, in 
order to prevent decay and promote the healing of the wound. 
Careful attention should be given the rebudded trees for the first 
two or three years, in order to protect the new growth from undesir- 
able conditions. After that such trees will require no attention or care 
other than that given the remainder of the trees in the orchard. 
THE SELECTION OF BUD WOOD. 
Bud wood for use in top-working trees of undesirable strains, or for 
other propagation work, should be taken from the most productive, 
regular-bearing trees of the Marsh strain. These trees should be 
selected on the basis of their performance records and the character 
and appearance of the individual trees. Fruit-bearing bud wood, 
viz, that bearing typical fruits of the kind desired, an illustration of 
which is shown in Plate XI, should be used exclusively for propaga- 
tion purposes. 
The bud wood should be packed in moist moss or other suitable ma- 
terial immediately after cutting, in order to preserve the buds in a 
fresh, viable condition until they are used. If the bud wood is to 
be kept for some time, it should be packed and held in a uniform, cool 
temperature. 
Vigorous-growing, nonbearing bud wood, or that commonly known 
as sucker wood, has been, until recently, highly prized and commonly 
used for propagation purposes. Under that practice more bud wood 
was, of course, cut from trees having the most suckers than from the 
trees having the fewest suckers. It has been determined in these in- 
vestigations that the trees producing the most sucker growth usually 
