Gardening Questions And Answers
grapes are sustainable. Are grapes sustainable? Grape production is relatively sustainable since there is no known significant damage to air, water, land, soil, forests, etc. as long as pesticides have not been used. Be sure to buy non GMO/organic, as toxic, chemical pesticides contaminate air, water, soil, etc.
Powdery mildew colonies on upper leaf surface of infected grape leaf. The powdery mildew fungus can infect all green tissues of the vine. Small, white or grayish-white patches of fungal growth appear on the upper or lower leaf surface (Figure 1). Expanding leaves that are infected may become distorted and stunted.
When your grapevine leaves have notched holes along the edges, it may be due to feeding by the black vine weevil. This 1/2-inch-long black beetle marked with white scales on its wings and a distinctive snout eats leaves and destroys new buds and shoots when bud-break and adult weevil emergence coincide.
Plant vines in the dormant season from late autumn until early spring, to the same depth that they were in the pot, providing the ground is not waterlogged or frozen. In areas with cold winters, March planting is preferable. The vine stems should be greater than pencil thickness, so they are not damaged by frost.
Grapes can be propagated in several ways, but perhaps the most common method is through dormant cuttings. Wait until after the vines have gone dormant to collect propagation material. Select one-year-old growth slightly larger than a pencil. Collect long, straight shoots from which to make cuttings.
How to Fertilize Grapes. Grapevines, like almost every other plant, need nitrogen, especially in the spring to jump-start rapid growth. Other nitrogen-rich grapevine fertilizers (such as urea, ammonium nitrate, and ammonium sulfate) should be applied after the vine has blossomed or when grapes are about ¼ inch (0.5 cm.
The quickest path to growing grapes is by planting dormant, bare-root grapevines in early spring. One-year-old bare root plants are usually the most vigorous. Read the tag or label to be sure the vines are certified virus-free, then choose a self-fertile variety or grow at least one more plant for pollination.
Grapes are much more susceptible to harm from overwatering than they are to drought. Overwatering can cause root rot and several other diseases that can kill your grapes. If the leaves of your grapes are yellowing, or if the tips of the leaves turn brown, these are sure signs the plant is suffering from overwatering.
Grapevines do best with full sun – about 7 or 8 hours per day. Less light leads to lower fruit production, poorer fruit quality, increased powdery mildew, and fruit rot. Grapevines will grow and produce well on a wide range of soil types, but good drainage is very important. Roots tend to grow deep – […]
Grapes are climbing vines with terndrils so will need support of a trellis, post and wires or do well against a sunny wall. There are varieties better for outdoor growing and also types for indoor greenhouse growing. They need plenty of sun to ripen the fruits. The grape vine is a climber, and a very […]