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Insects of Grapes

Back to Common Problems - Grapes 1) Grape Berry Moth Adult Todd Gilligan, CSU, Bugwood.org Grape berry moth larva Photo: Todd M. Gilligan and Marc E. Epstein, CSU, Bugwood.org Grape berry moth is the most common and destructive of all grape insect pests. Adult moths lay eggs near bloom, and the...

Diseases of Grapes

Back to Common Problems - Grapes 1) Black Rot, Guignardia bidwellii Black rot spots on leaves Close-up on fruit Black, shriveled, raisin-like mummies Spots on foliage Black rot is a fungal disease that causes brown, circular leaf spots and reduces many berries to black, shriveled, raisin-like...

Common Problems of Grapes

Back to Grapes Cultural and Environmental Diseases Insects Wildlife Cultural Management Practices for Pest Control in Grape Plantings Pruning. Grape vines must be pruned every year to remain fruitful. Any shivered fruit clusters remaining on the vines or trellises and all pruning waste must be...

Pruning and Training Grapes

Back to grapes Pruning Grape vines must be pruned every year to remain fruitful. Any shivered fruit clusters remaining on the vines or trellises and all pruning waste must be removed from the vineyard during the dormant period and destroyed. Terminology Cane—a mature woody shoot Cordon—a horizontal...

Fertilizer - Organic/Inorganic - Fruits

Back to Fruits Fertilization is important for all fruit crops. Where the levels of one or more of the critical nutrients—nitrogen, phosphorus, and potassium—are below those required for good growth and maintenance of the crop, plants become stressed and produce fruit of poor quality. Plants under...

Mulching and Irrigation - Small Fruits

Back to small fruits Organic mulches are always beneficial to small fruits. They help to: Suppress weeds; Maintain even soil temperatures; Hold moisture in soil; Add organic matter; Protect overwintering plant crowns; Keep fruits clean; and Prevent root damage from shallow cultivation. Straw,...

Grapes - Care and Management

Back to grapes Mulch and Irrigation Fertilizing Crop Soil pH 1st Year 2nd Year 3rd Year + Grapes - All Varieties 5.8 -6.5 3 oz. of 10-10-10 per plant in early spring . 3 oz. of 10-10-10 per plant at flowering. 4 oz. per plant. 4th year 8 oz. per plant. 5th year 16 oz. per plant; then 16 oz. per...

Growing Organic Fruit

Photo: Clemson Un., Musser Farms Fig Asian pear Immature strawberries Back to fruits Growing Fruit Orgaically in Maryland Home gardeners have more success growing small fruits organically than growing tree fruits (apple, pear, peach, plum, and cherry) organically. Three notable exceptions to this “...

Giant Resin Bee

Back to Pollinator Photo Gallery Female giant resin bee Male giant resin bee is nearly half the size of the female Have you noticed a different looking large bee flying around your flowering plants lately? Sometimes confused for carpenter bees , mining bees or European hornets they are giant resin...

Grapes - Selection and Planting

Back to grapes Selection Grapes are a self-fruitful crop, meaning pollen from the same cultivar is effective for fertilization and fruit growth. However, they require bee activity for best fruit production. The low winter temperatures in the higher elevations of the western counties may limit the...

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