•The grape flea beetle is a Chrysomelid leaf beetle. Flea beetle (steely beetle) This insect attacks buds of both wild and cultivated grape, and is another early season grape pest. Grape Flea Beetle – also known as the steely beetle. Infested canes must be cut off and burned. 2015-41595-24254 from the USDA National Institute of Food and Agriculture. Black Vine Weevil – WSU Webpage; Japanese Beetle – Virginia Tech; Flea Beetle – Cornell University; Fruit Pests. Apple Scab 1. Spring is finally here and grape buds are starting to swell. There is only 1 generation per year. The adult insects move to the vines at bud swell, and usually are localized within the vineyard. This stage feeds directly on young buds, beginning when conditions warm in the spring. It is this injury to the developing buds that can cause economic losses in some years. If damage has occurred in the past, check those areas of the vineyard first. Feeding by beetles results in a small (slightly larger than a pin head) hole on the sides and ends of the newly developing grape buds; Adult beetles are present in the early spring (April through May) Small insects, approximately 1/10 inch long, shiny, with enlarged hind legs used for jumping The use of some products may not be legal in your state or country. Scheduled sprays for grape berry moth and other insect pests occur later in the season are of little benefit as they do not coincide with early flea beetle activity. Of course, ALWAYS READ AND FOLLOW LABEL DIRECTIONS FOR SAFE USE OF ANY PESTICIDE! It may jump when disturbed. Adults eat buds and unfolding leaves, resulting in hollowed out and leaves that emerge ragged and tattered. Scars are typically formed beyond the last grape cluster. Light Brown Apple Moth (.pdf) – WSU; Various Stink Bugs: Grapes. Grape flea beetles overwinter as adults and become active on warm April days when grape buds begin to swell. Grape Flea Beetle . Cutworm spp. Description. Potato leafhopper. Grape flea beetle is found in the eastern two-thirds of the United States. Larvae feed on flower clusters and skeletonize leaves in a manner similar to adult rootworm feeding. While the larvae do injure the leaves, they are rarely of economic importance. The grape flea beetle is often a sporadic pest of grapes during the early growing season in most growing areas. Pesticide recommendations in this publication are registered for use in Kentucky, USA ONLY! Once the buds are 1/2 inch long, only slight injury is caused. Photos by Eric Burkness, University of Minnesota. Grape Flea Beetle, University of Minnesota, Midwest Small Fruit and Grape Spray Guide, Field Guide for Integrated Pest Management in Pacific Northwest Vineyards, Washington State University, Reviewed by Eric Stafne, Mississippi State University and Tim Weigle, Cornell University. Larvae are small, cream-colored worms (1/8 – 1/3 inch long). Inspect buds early in the season during bud swell. Coverage is Key for Airblast Sprayers 6. Try this homemade spray to control flea beetles: 2 cups rubbing alcohol, 5 cups water, and 1 tablespoon liquid soap. There is only one generation per year; however, if overwintering sites (woodlands) for this insect are common nearby, then large infestations can occur. Proper timing of the insecticide is important to provide good control of grape flea beetles. The females lay eggs under loose cane bark on vines, or occasionally on leaf upper surfaces, or on buds. When flea beetles are common and injury to the small buds is observed, a spray timed at bud swell will provide control. Significant damage typically occurs only in years where the weather conditions keep bud development in the susceptible stages. Grape flea beetle, larvae, and damage. The grape flea beetle (or steely beetle) is a shiny, metallic dark blue. Grape Flea Beetle • Damage by adults to primary and secondary buds • Cool weather patterns that prolong swollen bud stage can result in longer window of attack • Scout at bud swell • Scout vineyard closest to wooded areas first • Broad spectrum insecticide if present. •The Chrysomelid beetle family has over 1,400 North American species. Grape Flea beetles, Altica spp. Pheromone Trap Catches 3. 859-257-4772, Students   /   This may reduce the numbers of primary and secondary fruit clusters. Research   /   Vineyard edges near woods where alternate hosts for the beetle may be growing (wild grape and Virginia creeper) are prime areas for grape flea beetles. Scouting is especially critical to catch this sporadic pest in years with damaging populations. Damage symptoms look similar, as both burrow into and hollow out developing buds around bud swell until bud break. There is only one generation per year; however, if overwintering sites (woodlands) for this insect are common nearby, then large infestations can occur. Knowledge of your enemy is the first key to flea beetle control. Some species may have white or yellow stripes on their wing cases. The most serious damage occurs in the spring. Please check with your local county agent or regulatory official before using any pesticide mentioned in this publication. Feed on small grape buds. New adults feed for the remainder of the summer and go into hibernation in the fall. Grape flea beetle is considered to be a secondary pest of grapes, but as a bud feeder it has the capability to do significant economic damage if left unchecked. Analysis. Dean Upon emerging from hibernation in the spring, the adult beetles feed on swelling and opening grape buds, leaving what appears as a large, round hole in the side of the bud. Control of flea beetles naturally starts with consistent cultural practices, physical barriers, and even biological methods. This may reduce the numbers of primary and secondary fruit clusters. Later in the season, larvae will feed on the foliage and flower clusters but this damage is rarely of economic importance. Adults eat buds and unfolding leaves, resulting in hollowed out and leaves that emerge ragged and tattered. Damage is often restricted to vineyard borders, particularly near wooded areas. The brown, black-spotted larvae of the grape flea beetle will skeletonize the leaves and eat the flower clusters, too. Adult beetles are most numerous following mild winters. The flea beetles overwinter as adults and emerge during April. Extension   /   Flea beetle (Steely beetle) This insect attacks buds of both wild and cultivated grape, and is another early season grape pest. They are approximately 1/10 inch long, shiny blue-purple to blue-green with enlarged hind legs for jumping. Once the buds reach 1/2-inch in size, beetles cannot cause significant damage. Adults are dark metallic greenish-blue, jumping beetles about 1/5 inch long; larvae are brownish and marked with black spots; eggs are pale yellow, and fairly conspicuous on upper leaf surface or under loose cane bark. •Several are a very common pests locally Cottonwood leaf beetle Colorado potato beetle The grape flea beetle is occasionally a serious pest of grapes in Ohio. (Coleoptera: Chrysomelidae), is a native pest that attacks buds of wild and cultivated grapevines as well as our native Virginia creeper (Parthenocissus quinquefolia). (Coleoptera: Chrysomelidae), are small (4-5 mm), oval shaped, metallic blue-purple beetles that jump when disturbed. They live underground and feed on the roots and tubers of young plants as well as on germinating seeds. ENTFACT-224: Grape Flea Beetle  |  Download PDF. Adults eat buds and unfolding leaves, resulting in hollowed out and leaves that emerge ragged and tattered. Though most tribes of the Galerucinae are suspect of rampant paraphyly in the present delimitation, the Alticini seem to form a good clade. Grape flea beetle, Altica chalybea Illiger This is a metallic blue-green beetle that is almost 5 mm long. Bonide® Thuricide® Bacillus Thuringiensis (BT) for grape leaf roller and omnivorous leaf roller. Damaged buds will not develop into primary canes which can reduce yields. How to Get Rid of Flea Beetles. CAUTION! Repeated scouting may be required in years where weather conditions keep buds in the susceptible stages (bud swell to 1/2-inch shoot growth. Check 100 vines and record the number of hits. When grape flea beetle is a problem, it occurs early in the season, just when the buds begin to swell. It is dark metallic greenish-blue or steel-blue and about 3/16-inch long. Larvae are yellow-brown with a dark head and feed on clusters and leaf surfaces. ), also known as the steely beetle, is a native insect and occurs in almost all states east of the Rocky Mountains and in Canada. Now is the time to start scouting for insects that may hollow out grape buds. Insecticides: In particularly heavy infestations, if more than 4% of grape buds are infested, spray an application of carbaryl, esfenvalerate or pyrethrin to reduce grape flea beetles. Symptoms       Management       Life cycle         More Info. Upon emergence adult beetles begin to feed upon newly swollen grape buds, chewing holes in the ends and sides. Beth reported that she did not see any insect during her scouting at WMARS on May 14, 2020 and that only two grape buds exhibited damage indicative of flea beetle or cutworm feeding. Grape flea beetle is found in the eastern two-thirds of the United States. S123 Ag Science – North Grape Flea Beetle - Grape Flea Beetle. The grape flea beetle is often a sporadic pest of grapes during the early growing season in most growing areas. The most serious damage occurs in the spring. The grape flea beetle (Altica spp. This beetle primarily attacks buds of wild and cultivated grapevines. Generally, larvae are not the greatest concern because management should be concentrated on the bud-damaging adult stage. The light yellow fairly conspicuous eggs hatch in a few days. Carbaryl is a broad-spectrum insecticide that provides control of many insect including Japanese beetle, grape leafhopper, grape berry moth, climbing cutworms, grape flea beetle, rose chafer, and other insects. The flea beetles overwinter as adults and emerge during April. The larvae feed on leaves for 3 to 4 weeks, then drop to the ground where they pupate in the soil, and emerge as adults in 1 to 2 weeks later. Grape Flea Beetle (Altica chalybea) | Mary Keim. When grape flea beetle is a problem, it occurs early in the season, just when the buds begin to swell. It is dark metallic greenish-blue or steel-blue and about 3/16-inch long. Brown grubs with black spots damage the foliage by feeding on the upper surfaces of the leaves, causing the lower surfaces to turn brown. Native to North America. Adults overwinter in debris in and near the vineyard. Departments & Units   /   grape cane girldler. The flea beetle is a small, jumping beetle of the leaf beetle family (Chrysomelidae), that makes up the tribe Alticini which is part of the subfamily Galerucinae.Historically the flea beetles were classified as their own subfamily. The 4 percent damage threshold has been used in balanced pruned ‘Concord’ vines and adjusted for higher or lower bud number according to variety and training system. Light Brown Apple Moth. They are one of the first insects to appear on the vine as spring begins. Adults are small (1/10 inch long), shiny, dark brown or black beetles with large hind legs that allow them to jump when disturbed. How to Get Rid of Flea Beetles. Severe infestations occur in vineyards that are abandoned or located near woodlands and border rows close to … Grape Cane Borer (.pdf) – Cornell University; Shothole Borer – UC-Davis; Beetles and Weevils: General. Bonide® Fruit Tree Spray for flea beetles, Japanese beetles, grape leaf skeletonizers, grape berry moth, spider mites, mealybugs, leafhoppers, black rot, downy mildew and botrytis rot. … Grape flea beetle is found in the eastern two-thirds of the United States. Flea beetle control is an ongoing battle that relies upon three levels of approach. The grape flea beetle is occasionally a serious pest of grapes in Ohio. This damage threshold can be adjusted according to variety and training system. Grape flea beetles are a metallic blue green color and about 1/4-inch long. In areas where climbing cutworms are present, pay close attention while scouting as the damage of these two pests is similar. The Grape flea beetle, Altica spp. In the spring, adults feed directly on buds, hollowing them out during the daylight hours from bud swell to 1/2-inch shoot growth. Note:Flea beetles transmit viral and bacterial diseases. This may reduce the numbers of primary and secondary fruit clusters. Grape Cane Borer / Apple Twig Borer (Amphicerus bicaudatus), Field Guide for Integrated Pest Management in Pacific Northwest Vineyards, grapes vineyard weed and floor management, spanish grapes general vineyard management, spanish grapes irrigation and water management, spanish grapes trellis and training systems, spanish grapes vineyard weed and floor management. The main culprits of such type of damage are flea beetle and cutworms. Dr. Subba Reddy PalliDepartment Chair & State EntomologistS-225 Agricultural Science Center NorthLexington, KY 40546-0091859.257.7450entchair@uky.edu, UK Entomology: Vision, Mission, & Core Values, Nancy Cox, Ph.D. Metallic, blue-green beetles, 1/5 inch long, feed on buds and unfolding leaves. The Grape Flea Beetle The grape flea beetle is small (3/16 inch long) metallic greenish-blue as an adult. Abandoned vineyards can … Native to North America. Apply insecticide in areas where more than 4 percent of the new buds are damaged. The grape flea beetle attacks the buds of wild and cultivated grapevines and the Virginia creeper. Periodical Cicadas 5. These are often the first insect pests to begin attacking grapes. Adults overwinter in protected areas around vineyards, and start feeding on interior of primary buds and opening grape leaves in early spring. Grape Flea Beetle 2. Grape Black Rot Sprays 4. 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