To combat the currant worm, spray thoroughly with Paris green to kill the first brood, just as soon as holes can be seen in the lower leaves—usually before the plants are in bloom. For the second brood, if it appear, spray with white hellebore (p. 203). For borers, cut out and burn the affected canes.
Varieties of currants.
In most sections the Red Dutch will be found to be the most satisfactory variety, as the plants are much less injured by borers than are Cherry (Plate XXIII), Fay, and Versailles, which are larger and better varieties, and are to be preferred in sections where the borers are not troublesome. Victoria is a valuable market sort where borers are numerous, as it is little injured by them. The same is also true of (Prince) Albert, which is little attacked by currant worms and is particularly valuable as a late sort. White Dutch and White Grape are valuable light-colored varieties, and (Black) Naples as a variety for jelly. London (London Market) is also proving to be satisfactory in some sections.
Dewberry.—The dewberry may be called an early trailing blackberry. The culture is very simple. Support should be given to the canes, as they are very slender and rank growers. A wire trellis or large-meshed fence-wire answers admirably; or (and this is the better general method) they may be tied to stakes. The fruits are large and showy, which, combined with their earliness, makes them desirable; but they are usually deficient in flavor. The Lucretia (Fig. 276) is the leading variety.
Lay the canes on the ground in winter. In the spring tie all the canes from each plant to a stake. After fruiting, cut the old canes and burn them (as for blackberries). In the meantime, the young canes (for next year’s fruiting) are growing. These may be tied up as they grow, to be out of the way of the cultivator. Dewberries are one to two weeks earlier than blackberries.
Fig.—The fig is little grown in the East except as a curiosity, but on the Pacific coast it has gained considerable prominence as an orchard fruit. Figs will stand considerable frost, and seedling or inferior varieties grow out-of-doors without protection as far north as Virginia. Many of the varieties fruit on young sprouts, and, inasmuch as the roots will stand considerable cold, these varieties will often give a few figs in the northern states. Figs have been fruited in the open ground in Michigan. In regions having ten degrees of frost, the fig should be laid down in winter. For this purpose the plants are pruned to branch from the ground, and the soft tops are bent to the surface and covered with earth. In commercial cultivation, fig trees grow large, and they stand 18 to 25 feet apart; but in gardens where they are to be bent over, they are to be kept as bushes.
Adriatic is the most commonly grown white fig. Among the other varieties are California Black or Mission Fig, Brown Ischia, Brown Turkey, White Ischia, and Celeste (Celestial).
Gooseberry.—The gooseberry differs little from the currant in its requirements as to soil, pruning, and general care. The plants should be set 3 to 4 feet apart; rows 5 to 7 feet apart. Select a rich, rather moist soil. The tops need no winter protection. If mildew and worms are to be kept in check, spraying must be begun with the very first sign of trouble and be thoroughly done.