It is the European chafer grubs that cause damage. Larvae at white grub stage (C-shaped): Larvae feed on plant roots in late summer and early spring. Visit the University of Minnesota website for information about diagnosing and managing problems with lawns and turf. They feed on all types of grass and may move into vegetable plantings and other crops, if they are in large numbers and food is scarce. These beetles emerge from the soil between mid-June and early July and are active on warm evenings for several hours just before and after sunset. Severe or fatal. Which beetle is also known as the tumblebug and can eat its weight in 24 hours? Toll Free: 800-967-2474 If an infestation occurs, certain pesticides are often helpful in eliminating the problem. Newlyhatched larvae feed voraciously from midsummer to early fall. Grubs overwinter just below frozen soil and return to the surface as soon as the ground thaws. Due to this being the first official find of European chafer beetles in the state, the MDA would like to better understand where the insect may be and how big of an issue this is to homeowners, golf courses and turf growers. Do not remove soil from infested areas and do not import plants form infested areas, as European chafers can be spread to new areas by movement of infested soil. Unlike the Japanese beetle, however, the European chafer is not a problem in daily irrigated turf. 711 TTY, © Copyright 2020 Minnesota Department of Agriculture, There are no federal, state or local regulations related to European chafer, Farm, Property, Real Estate Listing (MN FarmLink), Agriculture Chemical Response & Reimbursement Account, Agricultural Best Management Practices (AgBMP) Loan, Agricultural Growth, Research & Innovation (AGRI) Program, Sustainable Agriculture Demonstration (AGRI), More Business Development, Loans, Grants Topics, Minnesota Ag Water Quality Certification Program, Certified Testing Laboratories (soil & manure), Fertilizer Tonnage Reporting & Inspection Fees, Pesticide Dealer Licensing & Sales Reporting, characteristics of the posterior of the abdomen. Detailed information about the use of cookies on this website can be found in our The European chafer (Amphimallon majale classified as Rhizotrogus majalis prior to Montreuil 2000) is a beetle of the family Scarabaeidae. In fact, the European chafer is more damaging to home lawns and turf than the Japanese beetle. Last Crawl Insect DEstroyer Insecticide , when in direct contact with pests such as caterpillars and slugs will work to kill them by lacerating their bodies and dehydrating them. The grubs hatch by late July. Cockchafer, (Melolontha melolontha), a large European beetle that is destructive to foliage, flowers, and fruit as an adult and to plant roots as a larva. The European Chafer Beetle is an introduced species that wreaks havoc on lawns. Test what you know about bugs with this quiz. Hence their nickname, the June Bug. ST. PAUL, Minn. (KEYC) — Officials from the Minnesota Department of Agriculture announced Monday the European chafer beetle has been found for the first time in Minnesota. By June, the new beetles begin emerging. Larvae have the typical C-shaped appearance of white grubs and can range from ¼-inch to 1-inch long with a dark brown head and conspicuous legs. The grub population consists mainly of first instars in early- to mid-August, second instars by early September, and third instars by mid-September to early October. The damage caused by chafer infestation to residential lawns is exacerbated by the fact that its grubs are an attractive food source for local fauna such as crows, foxes and raccoons, who relentlessly dig up the turf in search of the morsels. 625 Robert Street North The large, white grubs of A. majale feed on the roots of most cool-latitude grasses, both wild and cultivated. Adults are active on warm evenings (above 65 degrees F) for several hours just before and after sunset. Chafer Grub. European chafer beetle was discovered in the U.S. in 1940, in a nursery near Rochester, New York. Show full articles without "Continue Reading" button for {0} hours. In addition to the damage caused by the grubs themselves, further damage may be caused in the fall and winter by animals, such as skunks and birds, which will dig up the grass to feed on the grubs. Copyright 2020 KEYC. The European chafer is a very serious pest that affects turf, horticulture, and field crops. European chafer adults are 0.5 inch long, and males and females are a uniform tan or light brown color. Cockchafer guide: how to identify and where to see. European Chafer. Omissions? They are a tan brown color and can mostly be found in turf and lawns. Garden and Welsh Chafer Grubs are typically between 10mm – 15mm long and you’ll see them lay in … European chafer eggs hatch in mid-July. Unlike the Japanese beetle, however, the European chafer is not a problem in daily irrigated turf. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. How long is diatomaceous earth effective once applied? Female chafers lay 20-40 eggs over their lifespan. How Long is Diatomaceous Earth Effective? Type of pest. Vigorous feeding occurs from March through May. Adult beetles emerge from the soil between the middle of June and early July in Michigan and New York. In the British Isles, the name “cockchafer” refers more broadly to any of the beetles in the subfamily Melolonthinae (family Scarabaeidae), which are known in North America as June beetles, June bugs, or May beetles. In order to check for grubs, cut 3 sides of a 12 x 12 inch (30 x 30 cm) piece of sod to a depth of 2 inches (5 cm), and fold it back to count the grubs. Larvae feed on the roots of turf. The grubs feed most heavily on grass roots from August to November and from March to early May. While animals feeding on larvae may damage turf, it is also beneficial in that it helps to decrease the pest population. The noble chafer has a distinct ‘waist’, whereas the rose chafer is spherical in shape. Pupae are about 16 millimetres (5⁄8 in) long. Facts and Information: The European Chafer Beetle has been spreading westward from New Westminster since 2001. Mature grubs feed during the fall and are well adapted to the cool moist conditions. These C-shaped grubs are cream coloured with a brown head and six legs. The MDA then worked with the U.S. Department of Agriculture to confirm the identity of the insect, since it had never been found in Minnesota before. They are more formally referred to as Rhizotrogus majalis and are smaller than most other June bugs at half an inch in length. The imago, or adult beetle, stage is quite short, lasting 1–2 weeks. The European chafer’s grub is known to cause more damage to turf grass than Japanese beetles because it spends a longer portion of the summer feeding on turf, which makes them particularly problematic for homeowners, golf courses and turf growers. They are similar to the “June bugs” commonly found in Minnesota in early summer but are generally a bit smaller and lighter in color. Credit: Andrew Newman Nature Pictures / Alamy Stock Photo. The grub remain within 2 inches (5 cm) of the surface of the turf, except when freezing conditions exist in which case they dig down further into the soil. Learn more about diatomaceous earth and how to use it in your home and garden. They emerge at about 8:30 pm, mate through the night, and return to the soil by daybreak. Life Cycle of the European Chafer Beetle. Our expert guide to cockchafers explains how to identify this fascinating beetle, plus facts about their diet and habitat. Did you know that diatoms were discovered in 1702? Let us know if you have suggestions to improve this article (requires login). The European chafer (Amphimallon majale classified as Rhizotrogus majalis prior to Montreuil 2000) is a beetle of the family Scarabaeidae. This has made the European chafer an enemy of lawns. Larvae: feed on decaying vegetation and are often found in composting piles. Eggs are shiny and oval, milky-white when freshly laid, but later turning dull gray, approximately 2.3 by 2.7 millimetres (3⁄32 in × 7⁄64 in). They have light brown/orange coloured heads and three pairs of legs. European Chafer Beetle or Rizotrogus majalis if you prefer the scientific name, is an introduced species that wreaks havoc on lawns. In May, they emerge from the turf as adults and fly to nearby deciduous trees to mate and feed. Larvae have the typical C-shaped appearance of white grubs and can range from ¼-inch to 1-inch long with a dark brown head and conspicuous legs. We would love to hear your story! They are laid singly, 5–10 centimetres (2–4 in) deep in moist soil, and take 2 weeks to hatch. The agency reports a south Minneapolis resident first noticed large swarms of beetles in their yard at dusk and reported it to a University of Minnesota Extension entomologist, who suspected the beetles were European chafers and reported them to the Minnesota Department of Agriculture.
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