Later in the season, larvae will feed on the foliage and flower clusters but this damage is rarely of economic importance. Abandoned vineyards can … The grape flea beetle (or steely beetle) is a shiny, metallic dark blue. Description. The grape flea beetle is occasionally a serious pest of grapes in Ohio. Control of flea beetles naturally starts with consistent cultural practices, physical barriers, and even biological methods. Apple Scab 1. Apply insecticide in areas where more than 4 percent of the new buds are damaged. The most serious damage occurs in the spring. Periodical Cicadas 5. The grape flea beetle attacks the buds of wild and cultivated grapevines and the Virginia creeper. 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. They are one of the first insects to appear on the vine as spring begins. Generally, larvae are not the greatest concern because management should be concentrated on the bud-damaging adult stage. Grape flea beetles overwinter as adults and become active on warm April days when grape buds begin to swell. Dean Grape flea beetle is found in the eastern two-thirds of the United States. The Grape Flea Beetle The grape flea beetle is small (3/16 inch long) metallic greenish-blue as an adult. The flea beetles overwinter as adults and emerge during April. Repeated scouting may be required in years where weather conditions keep buds in the susceptible stages (bud swell to 1/2-inch shoot growth. Larvae are yellow-brown with a dark head and feed on clusters and leaf surfaces. 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. Grape flea beetle is found in the eastern two-thirds of the United States. The use of some products may not be legal in your state or country. When flea beetles are common and injury to the small buds is observed, a spray timed at bud swell will provide control. Note:Flea beetles transmit viral and bacterial diseases. Grape flea beetle or steely beetle. 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. Apply 1 to 2 quarts per acre per application, consult the label for rate recommendations. When grape flea beetle is a problem, it occurs early in the season, just when the buds begin to swell. Grape Flea Beetle - Grape Flea Beetle. 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. While the larvae do injure the leaves, they are rarely of economic importance. Damaged buds will not develop into primary canes which can reduce yields. Flea beetle (Steely beetle) This insect attacks buds of both wild and cultivated grape, and is another early season grape pest. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture. Sites near overwintering habitats such as woods or abandoned vineyards are especially at risk. 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. The beetle targets tasty plants in the families Solanaceae (potatoes, tomatoes, eggplant, peppers) and Brassicaceae (including cole crops: broccoli, kale, cabbage, collards). When grape flea beetle is a problem, it occurs early in the season, just when the buds begin to swell. There is only one generation per year; however, if overwintering sites (woodlands) for this insect are common nearby, then large infestations can occur. The insect overwinters as an adult. 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. The adults overwinter and emerge in late March when buds are start-ing to swell. 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. There is only 1 generation per year. 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 adult insects move to the vines at bud swell, and usually are localized within the vineyard. 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. grape cane girldler. Grape cane gallmaker. Grape flea beetle, larvae, and damage. These are often the first insect pests to begin attacking grapes. The most serious damage occurs in the spring. Spring is finally here and grape buds are starting to swell. Brown grubs with black spots damage the foliage by feeding on the upper surfaces of the leaves, causing the lower surfaces to turn brown. The females lay eggs under loose cane bark on vines, or occasionally on leaf upper surfaces, or on buds. There is only one generation per year; however, if overwintering sites (woodlands) for this insect are common nearby, then large infestations can occur. Symptoms       Management       Life cycle         More Info. Of course, ALWAYS READ AND FOLLOW LABEL DIRECTIONS FOR SAFE USE OF ANY PESTICIDE! Metallic, blue-green beetles, 1/5 inch long, feed on buds and unfolding leaves. 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. 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. •The grape flea beetle is a Chrysomelid leaf beetle. The grape flea beetle (Altica spp. This may reduce the numbers of primary and secondary fruit clusters. Adults overwinter in protected areas around vineyards, and start feeding on interior of primary buds and opening grape leaves in early spring. Mechanical control methods include handpicking larger pests, such as Japanese beetles and caterpillars, and removing any grapes or clusters that are injured by Asian lady beetles. Grape Flea Beetle Grape Flea Beetle Larva Grape Vine Aphids Grape Cane Girdler Grape Cane Girdler Injury Cane Gallmaker Injury Grape Phylloxera Grape Root Borer Grape Root Borer Moths Grape Berry Moth Grape Berry Moth Injury A Grape Leafhopper Grape Webworm Grape Rootworm Grape Leaf … It is dark metallic greenish-blue or steel-blue and about 3/16-inch long. Grape flea beetles are small (3/16-inch), shiny metallic, bluish-black insects that jump like a flea when disturbed. Grape flea beetles are a metallic blue green color and about 1/4-inch long. Adult beetles are most numerous following mild winters. (Coleoptera: Chrysomelidae), are small (4-5 mm), oval shaped, metallic blue-purple beetles that jump when disturbed. Adults overwinter in debris in and near the vineyard. This may reduce the numbers of primary and secondary fruit clusters. Larvae are small, cream-colored worms (1/8 – 1/3 inch long). Adults eat buds and unfolding leaves, resulting in hollowed out and leaves that emerge ragged and tattered. Pheromone Trap Catches 3. Photos by Eric Burkness, University of Minnesota. Grape flea beetle, Altica chalybea Illiger This is a metallic blue-green beetle that is almost 5 mm long. ), also known as the steely beetle, is a native insect and occurs in almost all states east of the Rocky Mountains and in Canada. In areas where climbing cutworms are present, pay close attention while scouting as the damage of these two pests is similar. Grape Flea beetles, Altica spp. Damage symptoms look similar, as both burrow into and hollow out developing buds around bud swell until bud break. Scars are typically formed beyond the last grape cluster. Scouting is especially critical to catch this sporadic pest in years with damaging populations. They live underground and feed on the roots and tubers of young plants as well as on germinating seeds. Cutworm spp. Beetles overwinter in the adult stage and emerge as grape buds begin to swell, with one generation per year. Test out the mixture on a leaf of the plant, let it sit overnight, then spray the rest of the plant if you don’t notice any adverse effects. Proper timing of the insecticide is important to provide good control of grape flea beetles. Pesticide recommendations in this publication are registered for use in Kentucky, USA ONLY! Light Brown Apple Moth (.pdf) – WSU; Various Stink Bugs: Grapes. Try this homemade spray to control flea beetles: 2 cups rubbing alcohol, 5 cups water, and 1 tablespoon liquid soap. Some species may have white or yellow stripes on their wing cases. Adults eat buds and unfolding leaves, resulting in hollowed out and leaves that emerge ragged and tattered. Significant damage typically occurs only in years where the weather conditions keep bud development in the susceptible stages. Grape Flea Beetle 2. Inspect buds early in the season during bud swell. The grape flea beetle is often a sporadic pest of grapes during the early growing season in most growing areas. It may jump when disturbed. Check 100 vines and record the number of hits. They are approximately 1/10 inch long, shiny blue-purple to blue-green with enlarged hind legs for jumping. 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 Flea beetle control is an ongoing battle that relies upon three levels of approach. Philanthropy & Alumni 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. Once the buds are 1/2 inch long, only slight injury is caused. Native to North America. Grape flea beetle is found in the eastern two-thirds of the United States. In the spring, adults feed directly on buds, hollowing them out during the daylight hours from bud swell to 1/2-inch shoot growth. Coverage is Key for Airblast Sprayers 6. Black Vine Weevil – WSU Webpage; Japanese Beetle – Virginia Tech; Flea Beetle – Cornell University; Fruit Pests. Potato leafhopper. Native to North America. 2015-41595-24254 from the USDA National Institute of Food and Agriculture. Native to North America. Flea beetle (steely beetle) This insect attacks buds of both wild and cultivated grape, and is another early season grape pest. Research   /   Light Brown Apple Moth. CAUTION! Damage is often restricted to vineyard borders, particularly near wooded areas. The flea beetles overwinter as adults and emerge during April. Bonide® Thuricide® Bacillus Thuringiensis (BT) for grape leaf roller and omnivorous leaf roller. The light yellow fairly conspicuous eggs hatch in a few days. Grape Flea Beetle – also known as the steely beetle. Departments & Units   /   Larvae feed on flower clusters and skeletonize leaves in a manner similar to adult rootworm feeding. Once the buds reach 1/2-inch in size, beetles cannot cause significant damage. … Please check with your local county agent or regulatory official before using any pesticide mentioned in this publication. New adults feed for the remainder of the summer and go into hibernation in the fall. It is this injury to the developing buds that can cause economic losses in some years. •The Chrysomelid beetle family has over 1,400 North American species. Significant damage typically occurs only in years where the weather conditions keep bud development in the susceptible stages. Lexington, KY 40546-0091 These beetles are small (3/16”) and metallic blue in color. Grape Flea Beetle. 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. Grape Black Rot Sprays 4. The Grape flea beetle, Altica spp. (Coleoptera: Chrysomelidae), is a native pest that attacks buds of wild and cultivated grapevines as well as our native Virginia creeper (Parthenocissus quinquefolia). 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