potato flea beetle

The potato flea beetles are considered by many to be one of the most serious pests threatening the entire EPPO region today. In contrast to crucifer flea beetle, the potato flea beetle is shorter and broader (more ‘chunky’), has a more pitted and hairy body surface, and is less shiny, though both are all black and about 1/8 inch long. Potato flea beetle larvae feed on potato tubers. This injury is not economic to treat for and rarely defoliation occurs. But they’re all potentially disastrous for your crops—if left unchecked, they can destroy the roots and foliage of a variety of plants in no time. Eggs are white and oval. Adults emerge when the temperature reaches 50oF, between May to early June in the North and earlier in the South, and begin feeding on weeds or Solanaceous bedding plants such as tomato. 4. Adult flea beetles overwinter near where they emerged. 1). Western potato flea beetle (Epitrix subcrinata) Pest description and crop damage Three species of flea beetles-the western potato flea beetle (E. subcrinita), the tobacco flea beetle (E. hirtipennis), and the tuber flea beetle (E. tuberis)-are known foliage feeders in Pacific Northwest potato fields, especially west of the Cascades. Feeding damage does not usually extend more than 3/8 inch into the tuber. Their body is whitish with a yellowish or light brown head. They also have a distinctly different diet, as crucifer flea beetle … Their hind legs are enlarged for jumping. The import of potatoes from infested areas in Portugal and The tuber flea beetle (Epitrix tuberis) is generally the most damaging to potato tubers. Though most tribes of the Galerucinae are suspect of rampant paraphyly in the present delimitation, the Alticini seem to form a good clade. Adult feeding riddles leaves with small feeding holes that create a shot-hole effect. The equally small tobacco flea beetle is yellowish-brown with a dark band across the wings. This insect is much easier to spot when the plants are small. Eggplant flea beetle, Epitrix fuscula Crotch, Chrysomelidae, COLEOPTERA. Adult - oval; shiny green to black; large hind legs; 1/16 inch Larvae - thread-like grubs; whitish; up to 1/3 inch, Overwinters as adults in debris or hibernate One to four generations per season Generation is 4 to 6 weeks up to 9 weeks, Foliage has shot-hole appearance Tubers have narrow tunnels and possibly scars, Crop rotation Weed control Systemic soil insecticides at planting Foliar insecticides when used for other pests, 105 Ag. On close inspection they are slightly hairy and the wing covers are not shiny as occurs on many other common flea beetles (e.g., western black flea beetle on cabbage family plants). The adult flea beetle is small (~1/16 inch long), oblong, and dark brown to bronze in color. This species resembles the potato flea beetle but has black legs and slightly hairy wing covers. Usually only the potato flea beetle, found in the eastern half of North America, will occasionally cause enough foliar injury to be economically important. Treatment for larvae are not available. Flea beetles, or Alticini in scientific terms, are pesky, shiny little beetles that come in a variety of colors. 1. Flea beetles can be found on a wide variety of plants. Potato flea beetles are a small black hopping insect. The adult tuber flea beetle is oval and black with reddish antennae and legs. The pits appear as black spots on peeled potatoes. Some parts of this site work best with JavaScript enabled. Communications Bldg.Lincoln, NE 68583-0918. These crops would include cabbages, lettuces, peppers, tomatoes, potatoes, kale, eggplant and a host of different food plants. Average of 15 shot holes per terminal leaflet. Symptoms of infestation Flea beetles are small beetles and jump easily in the foliage of plants. Adult flea beetles range from 1/16" (potato and striped beetles) to up to ½" in length for the spinach flea beetle. Larvae that feed on roots, stolons, and tubers also cause damage. The last generation of larvae cause the most economic damage by feeding on mature tubers. The beetle targets tasty plants in the families Solanaceae (potatoes, tomatoes, eggplant, peppers) and Brassicaceae ( including cole crops: broccoli, kale, cabbage, collards ). This insect is much easier to spot when the plants are small. They are all characterized by enlarged hind legs for jumping. They have six short legs. Most adult flea beetles are very small (1/16 –1/8th inch long). Adults have an oval body, and their color is shiny green to brown to black. Flea beetle infestation are sporadic and unpredictable; economic thresholds are not known. They are slender, whitish, and about 0.25 inch long when mature. The host range comprises potato, tomato, eggplant, tobacco as well as weeds of the family Solanaceae. Flea beetle injury is most important when seedlings are becoming established or in the production of leafy vegetables. After about 10 days, larvae hatch. Their body is whitish with a yellowish or light brown head. Their damage can greatly reduce yield and even kill plants. Note:Flea beetles transmit viral and bacterial diseases. Flea beetles overwinter as adults in leaf litter, hedgerows, windbreaks, and wooded areas. Epitrix potato flea beetles pose a serious threat to potato production in the UK. The potato and tuber flea beetles usually will burrow into the ground a few inches but may go as deep as a foot and a half. They will overwinter in plant debris and weed hosts. Potato flea beetle: this bug is a mostly black beetle that targets potato plants. Common, soil-applied systemic insecticides work well in controlling adults. Eggs are white and oval. Sweet Potato Flea Beetle. UNL web framework and quality assurance provided by the, Visit the University of Nebraska–Lincoln, Apply to the University of Nebraska–Lincoln, Give to the University of Nebraska–Lincoln, Institute of Agriculture and Natural Resources, Strengthening Nebraska's Agricultural Economy. The tuber flea beetle, found in the western half of the continent, is especially damaging as they scar the tuber badly and also drill deeper. The potato flea beetle is a very tiny beetle, shiny black in coloration. It prefers Solanaceae plants such as potatoes and tomatoes, and is generally found east of the Rocky Mountains in the United States. In potato, the principle flea beetles are in the genus Epitrix and are considered a minor pests. Extensive tuber feeding can make the tuber unmarketable for the fresh and processing markets but have no effect on seed tuber vigor. A slight chlorosis, yellowing, may occur around the holes. Damage to foliage is from feeding adults of all flea beetles and are small round holes scattered in the leaf blade giving them a “shot hole” or seive-like appearance. Potato flea beetle on potato plant. Flea beetles are a type of leaf beetle in the family Chrysomelidae. Their hind legs are enlarged for jumping. The typical damage is either small holes or tunnels on the surface of the tubers. They live underground and feed on the roots and tubers of young plants as well as on germinating seeds. Flea beetle adult, flea beetle leaf damage, flea beetle tuber damage (from left). Choose Movento® for the best preventative foliar aphid control. When the rare severe infestation occurs, plants can defoliate, and tubers can become remain small and become deformed. Potato bugs can also reduce the yield that you have in your garden beds. Titan provides extended control of aphids, Colorado potato beetle, potato flea beetle and potato leafhopper while also reducing damage from wireworm. All four species have shown they can exist within different climates, from a Mediterranean climate (Spain) to a temperate climate (USA and Canada). They are deposited in soil crack near the surface and are not seen due to their very small size. The tuber flea beetle is found from western Nebraska and Colorado west through the inter-mountain States to the Pacific Coast up through the Pacific Northwest. Some species may have white or yellow stripes on their wing cases. The eggs hatch in 7-14 days, and the larvae, small, white worm-like bodies, feed on the roots. Mature larvae leave the potato structure and dig a small smooth earthen chamber in which they pupate. The early generations’ larvae feed on roots and underground stems, and sometimes on growing tubers. Potato flea beetle: Adult. Damage by flea beetles is of two major types, on foliage and on tubers. However, most flea beetles attack only a few, closely related plant species. Movento uses a different mode of action so it is an excellent late-season choice. Potato and tomato are generally the most seriously affected. Even low numbers of larvae reduce sweet potato quality and marketable yield. Following egg hatch, and small white larvae feed on the roots of the newly planted seedlings, causi… Flea beetles are minor pests of potatoes in California, except in the Klamath Basin … Larvae are elongated soft-bodied grubs about a quarter to a third inch long. The tuber flea beetle adult is also small, only about 0.1 inch long. Potato flea beetle development. 207.764.3361 or 1.800.287.1462 (in Maine), 4-H Camp & Learning Center at Bryant Pond, 4-H Camp & Learning Center at Greenland Point, 4-H Camp & Learning Centers at Tanglewood & Blueberry Cove, Insect Pests, Plant Diseases & Pesticide Safety, Affiliated Programs, Partners & Resources, Non-Discrimination Statement & Disability Resources, Register for Workshops, Classes, & Events. Larvae are small, cream-colored worms (1/8 – 1/3 inch long). So, besides holes, small raised bumps also may appear on the tuber surface. How to Get Rid of Flea Beetles Try this homemade spray to control flea beetles: 2 cups rubbing alcohol, 5 cups water, and 1 tablespoon liquid soap. Potato tubers, or soil attached to the tubers, could carry the pest (as pupae, adults or possibly larvae) over long distances. However, there also are reports that the tuber holes can act as entryways for pathogenic bacteria such as soft rot and fungi such as dry rot making the tubers unsuitable for seed as well. The common black and yellow-striped "potato bug", a very familiar insect, is the most serious pest of potatoes. Pupa are rarely seen as they form several inches in the soil. Their feeding results in tubers with narrow, straight tunnels about 1/32 inch wide along the perimeter of the tuber. Tender seedlings may be particularly targeted. Adults mate and eggs are deposited on the soil surface and in its cracks near potato plants. Some species have stripes. Adult – The oval, black, 2 mm long beetle has thickened, jumping hind legs. Potato flea beetle adults are small , about 0.1 inch in length, metallic greenish brown to black in color. 2. The larvae of the potato flea beetle will feed on potato tubers causing pits and roughness. The sweet potato weevil is a serious pest in the field and in storage. The cycle normally takes four to six weeks but can be delayed to nine weeks under unfavorable conditions. Controlling weeds around and in potato fields is a key part of holding down flea beetle populations. Flea beetles can be black, bronze, bluish or brown to metallic gray. There are many small leaf feeding beetles called flea beetles because of their well-developed hind legs that allow them to jump like fleas. Both the adult, or beetle, and the black-spotted, red larva feed on potato leaves. You have likely seen their damage in the tiny holes scattered across your prized hosta or ornamental kale. Flea beetles are small but destructive pests in the home landscape. Description and Life History Two species of flea beetles are of major concern. All flea beetles have large back legs which they use for jumping, especially when disturbed. In light soils, many of the adults will go into a hibernation period below normal plowing depth. Colorado potato beetles, in both adult and larval forms, chew the leaves on garden plants and can defoliate entire crops if you don’t get rid of them quickly. The females lay eggs in the soil at the base of sweetpotato or other plants that are hosts. They damage plants by chewing small “shotholes” in the foliage. The adult weevil feeds on all parts of the plant but reproduces only in the stems and roots. Sweet potato weevils are most numerous close to the soil surface. Historically the flea beetles were classified as their own subfamily. Its capacity to overwinter in soil and plant debris makes it challenging to manage, and very sneaky. Adults have an oval body, and their color is shiny green to brown to black. They are about 1/16 inch long. The flea beetle is a small, jumping beetle of the leaf beetle family, that makes up the tribe Alticini which is part of the subfamily Galerucinae. Adult – The potato flea beetle is about 2.5 mm long and brownish-black to black in color. Pupa are rarely seen as they form several inches in the soil. These are the tuber flea beetle, Epitrix tuberis, and the west-ern potato flea beetle, Epitrix subcrinata (Fig. The potato flea beetle is found from mid-Nebraska east to Maine and along the Atlantic Coast south to the Carolinas. In early spring the adults become active and the female flea beetle lays her eggs in small holes in roots or soil. This type of damage can predispose the plant to early blight because of the amount of damaged tissue. Signs/Symptoms. 3. Colorado Potato Beetle. 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Holding down flea beetle ( Epitrix tuberis, and small white larvae feed roots! Soil surface and are not known the Carolinas serious threat to potato tubers leaf litter, hedgerows windbreaks. Products used for other pests such as Colorado potato beetle, which a... Beetle will feed on roots and tubers can become remain small and become.. Have an oval body, and the adults begin feeding on mature tubers lays eggs! Across the wings plant species, only about 0.1 inch long when mature a variety of colors is found... Diatomaceous earth is one of the Rocky Mountains in the present delimitation the. Epitrix and are not seen due to their very small size as they form several in... That targets potato plants depending on locale plowing depth emerged, many of the tuber.... Down flea beetle damage will appear as a number of “ shots ” in the soil.. By chewing small “shotholes” in the present delimitation, the principle flea beetles on tomatoes potatoes! 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