. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. Fig. 12 age of the trees, and according to whether temporary relief or permanent results are sought. If permanent i-esults are sought the diseased trees can be top grafted. Grapefruit, Mandarin oranges, and tangerines are nearly immune to infection from this disease even when sur- rounded by badly diseased sweet-orange trees. For this reason varieties of citrus trees that are susceptible to this disease may be topgrafted with varieties that are not so readily susceptible to the disease. The large limbs may be removed during Decem-
. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. Fig. 12 age of the trees, and according to whether temporary relief or permanent results are sought. If permanent i-esults are sought the diseased trees can be top grafted. Grapefruit, Mandarin oranges, and tangerines are nearly immune to infection from this disease even when sur- rounded by badly diseased sweet-orange trees. For this reason varieties of citrus trees that are susceptible to this disease may be topgrafted with varieties that are not so readily susceptible to the disease. The large limbs may be removed during Decem- ber and January, as is practiced for top grafting. If the grafts fail to take, the sprouts from the limbs may be budded later. If one does not wish to be constantly removing sprouts from the lower part of the tree, the Irunk may be sawed off near the ground and grafted. This method will require a year or two longer to secure a tree in good bearing. If it is not desirable to bud over to immune varieties, there are other methods that may be cmj^loyed with good results, but with less certainty of permanent success. During De- cember and January the trees should be headed back by cutting out the top. The trunk and the larger branches should be allowed to re- main. The trees should then be sprayed thoroughly with Bordeaux mixture prepared according to the following formula: 5 pounds of rock lime, 5 pounds of bluestonc, and 50 gallons of water. Three or four sprayings should follow throughout the season at intervals of 8 weeks as new growth comes on. The increase of scale insects following the application of the fungicide will have to be checked by an insecticide. Fig. 14 (a) shows a characteristic scaly bark branch unsprayed; in (6) is shown a branch taken from a tree near by the tree from which the scaly bark branch was taken, that has been sprayed twice with Bordeaux mixture. The contrast of the sprayed and the. Fu;. i;{. Please note that these images are extracted from scanned p
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Keywords: ., bookcentury1900, booksubjectcitrusfruits, booksubjectfruitcultur
