14. Heath Cling.—Very good South and West. Wrapped in paper and laid in a cool room, it will keep longer than any other variety. Tree hardy and often produces when others fail. Excellent for preserving, and when quite ripe, is superior as a dessert fruit.
15. Blood Cling.—A well-known peach, excellent for pickling and preserving. It sometimes measures twelve inches in circumference. The old French Blood Cling is smaller. Many of these varieties will be found under other names. You will have to depend upon your nursery-man to give you the best he has, and be careful to bud from any choice variety you may happen to taste. Difficulties and disappointments will always attend efforts to get desired varieties.
PEAR.
The pear is a native of Europe and Asia, and, in its natural state, is quite as unfit for the table as the crab-apple. Cultivation has given it a degree of excellence that places it in the first rank among dessert-fruits. No other American fruit commands so high a price. New varieties are obtained by seedlings, and are propagated by grafting and budding: the latter is generally preferred. Root-grafting of pears is to be avoided; the trees will be less vigorous and healthy. The difficulty of raising pear-seedlings has induced an extensive use of suckers, to the great injury of pear-culture. Fruit-growers are nearly unanimous in discarding suckers as stocks for grafting. The difficulty in raising seedling pear-trees is the failure of the seeds to vegetate. A remedy for this is, never to allow the seeds to become dry, after being taken from the fruit, until they are planted. Keep them in moist sand until time to plant them in the spring, or plant as soon as taken from the fruit. The spring is the best time for planting, as the ground can be put in better condition, rendering after-culture much more easy. The pear will succeed well on any good soil, well supplied with suitable fertilizers. The best manures for the pear are, lime in small quantities, wood-ashes, bones, potash dissolved, and applied in rotten wood, leaves, and muck, with a little stable-manure and iron-filings—iron is very essential in the soil for the pear-tree. In all soils moderately supplied with these articles, all pear-trees grafted on seedling-stocks, and those that flourish on the foreign quince, will do well. A good yellow loam is most natural; light sandy or gravelly land is unfavorable. It is better to cart two or three loads of suitable soil for each tree on such land. The practice of budding or grafting on apple-stocks, on crab-apples, and on the mountain-ash, should be utterly discarded. For producing early fruit, quince-stocks and root-pruning are recommended.
Setting out pear-trees properly is of very great importance. The requisites are, to have the ground in good condition, from manure on the crop of the last season, and thoroughly subsoiled and drained. Pear-trees delight in rather heavy land, if it be well drained; but water, standing in the soil about them, is utterly ruinous. Pear-trees, well transplanted on moderately rich land, well subsoiled and well drained, will almost always succeed. By observing the following brief directions, any cultivator may have just such shaped tops on his pear-trees as he desires. Cut short any shoots that are too vigorous, that those around them may get their share of the sap, and thus be enabled to make a proportionate growth. After trees have come into bearing, symmetry in the form of their heads may be promoted by pinching off all the fruit on the weak branches, and allowing all on the strong ones to mature.
Those two simple methods, removing the fruit from too vigorous shoots, and cutting in others, half or two-thirds their length, will enable one to form just such heads as he pleases, and will prove the best preventives of diseases.
Diseases.—There are many insects that infest pear-orchards, in the same manner as they do apples, and are to be destroyed in the same way. The slugs on the leaves are often quite annoying. These are worms, nearly half an inch long, olive-colored, and tapering from head to tail, like a tadpole. Ashes or quicklime, sprinkled over the leaves when they are wet with dew or rain, is an effectual remedy.
Insect-Blight.—This has been confounded with the frozen-sap blight, though they are very different. In early summer, when the shoots are in most vigorous growth, you will notice that the leaves on the ends of branches turn brown, and very soon die and become black. This is caused by a worm from an egg, deposited just behind or below a bud, by an insect. The egg hatches, and the worm perforates the bark into the wood, and commits his depredations there, preventing the healthy flow of the sap, which kills the twig above. Soon after the shoot dies, the worm comes out in the form of a winged insect, and seeks a location to deposite its eggs, preparatory to new depredations. The remedy is to cut off the shoots affected at once, and burn them. The insect-blight does not affect the tree far below the location of the worm. Watch your trees closely, and cut off all affected parts as soon as they appear, and burn them immediately, and you will soon destroy all the insects. But very soon after the appearance of the blight they leave the limb; hence a little delay will render your efforts useless. These insects often commit the same depredations on apple and quince-trees. We had an orchard in Ohio seriously affected by them. We know no remedy but destruction as above.
The Frozen-Sap Blight is a much more serious difficulty. Its nature and origin are now pretty well settled. In every tree there are two currents of sap: one passes up through the outer wood, to be digested by the leaves; the other passing down in the inner bark, deposites new wood, to increase the size of the tree. Now, in a late growth of this kind of wood, the process is rapidly going on, at the approach of cold weather, and the descending sap is suddenly frozen, in this tender bark and growing wood. This sudden freezing poisons the sap, and renders the tree diseased. The blight will show itself, in its worst form, in the most rapid growing season of early summer, though the disease commenced with the severe frosts of the previous autumn. Its presence may be known by a thick, clammy sap, that will exude in winter or spring pruning, and in the discoloration of the inner bark and peth of the branches. On limbs badly affected on one side, the bark will turn black and shrivel up. But its effects in the death of the branches only occur when the growth of the tree demands the rapid descent of the sap: then the poisoned sap which was arrested the previous fall, in its downward passage, is diluted and sent through the tree; and when it is abundant, the whole tree is poisoned and destroyed in a few days; in others more slightly affected, it only destroys a limb or a small portion of the top. Another effect of this fall-freezing of sap and growing wood, is to rupture the sap-vessels, and thus prevent the inner bark from performing its functions. This theory is so well established, that an intelligent observer can predict, in the fall, a blight-season the following summer. If the summer be cool, and the fall warm and damp, closed by sudden cold, the blight will be troublesome the next season, because the plentiful downward flow of sap, and rapid growth of wood, were arrested by sudden freezing. If the summer is favorable, and the wood matures well before cold weather, the blight will not appear. This is of the utmost practical moment to the pear-culturist. Anything in soil, situation, or pruning, that favors early maturity of wood, will serve as a preventive of blight; hence, cool, moist situations are not favorable in climates subject to sudden and severe cold weather in autumn. Root-pruning and heading-in, which always induce early maturity of wood, are of vast importance; they will, almost always, prevent frozen-sap blight. If, in spite of you, your pear-trees will make a late luxuriant growth, cut off one half of the most vigorous shoots before hard freezing, and you will check the flow of sap, by removing the leaves and shoots that control it, and save your trees. If blight makes its appearance, cut off at once all the parts affected. The effects will be visible in the wood and inner bark, far below the external apparent injury. Remove the whole injured part, or it will poison the rest of the tree. When this frozen sap is extensive, it poisons and destroys the whole tree; when slight, the tree often wholly recovers. If a spot of black, shrivelled bark appears, shave it off, deep enough to remove the affected parts, and cover the wound with grafting-wax. Remove all affected limbs. These are the only remedies. But the practice of pruning both roots and branches will prove a certain preventive. A tree growing in grass, where it grows more slowly, and matures earlier in the season, will escape this blight; while one growing in very rich garden soil, and continuing to grow until cold weather, will suffer severely. The effects on orchards, in different soils and localities everywhere, confirm this theory. A little care then will prevent this evil, which has sometimes been so great as to discourage attempts at raising pears. In some localities, some of the finer varieties of pears, as the virgalieu, are ruined by cracking on the trees before ripening. Applications of ashes, salt, charcoal, iron-filings, and clay on light lands, will remedy this evil.
Distances apart.—All fruit-trees had better occupy as little ground as is consistent with a healthy vigorous growth. They are manured and well cultivated, at a much less expense. The trees protect each other against inclement weather. The fruit is more easily harvested. And it is a great saving of land, as nothing else can be profitably grown in an orchard of large fruit-trees. The two kinds of pear-trees, dwarf and standard, may be planted together closely and be profitable for early and abundant bearing. The plan given on the next page of a pear-orchard, recommended in Cole's Fruit Book, is the best we have seen.