Often confused with the Cigarette beetle, one key difference is that the Drugstore beetle has longitudinal grooves on its wing covers (elytra). These beetles crawl and fly. Female Drugstore beetles lay eggs, normally about 75 at a time, on a food product. All recommendations for pesticide use are for South Carolina only and were legal at the time of publication, but the status of registration and use patterns are subject to change by action of state and federal regulatory agencies. Adults can fly and are attracted to light. To prevent drugstore beetle attacks or to control their infestations, it is important to know what they look like, how they live, and where to find them. Cover the shelves with clean shelf paper. Good sanitation is the best prevention and control for drugstore beetle infestations. The femora of each hind leg retracts into a groove in hind coxa. Life Cycle and Habits. Follow all directions, precautions and restrictions that are listed. There are some rows of deep pits on their wing covers. Check all potential products for activity. Their eggs are pearly white and are not easily seen with the naked eye. If you follow a few recommendations you can usually eliminate the problem quickly. Pestnet® builds your brand online and gets you followers. Inspect packages of birdseed, grass seeds, and dry pet food. This stage  lasts from 12-18 days. The speed of development through the life cycle depends on temperature, moisture, quality and abundance of food. Pestnet® has experience in the pest management industry and years of experience in effective online pest control marketing. The adult drugstore beetle is cylindrical in shape, 1/10 inch (2.5 mm) in length, uniformly brown in color and covered by fine silky dense hairs. Do not treat surfaces used for food storage, preparation or where kitchen appliances or utensils are kept. All recommendations are for South Carolina conditions and may not apply to other areas. Let Pestnet® help your pest control company reach new heights by utilizing the power of Pest Control Lead Generation. Drugstore beetle larvae are C-shaped (grub-like), about 3/16 inch long, and creamy white in color. The larval (immature)  period is up to 57 days. Hairs on the body are less abundant and pronounced, again distinguishing it from the Cigarette beetle. Connect with your County Extension Office », Find an Extension employee in our staff directory », Get the latest news and updates on Extension's work around the state, Feedback, questions or accessibility issues: info@extension.wisc.edu | © 2020 The Board of Regents of the University of Wisconsin System Privacy Policy | Non-Discrimination Policy | Discrimination and Harassment Complaints | Disability Accommodation Requests | Civil Rights. Use older packages before new ones and opened packages before unopened ones. They lay between 23-114 eggs that hatch in 9 days. In households they attack a wide variety of foods including flour, meal, breakfast food, pepper, spices, seeds, pet food, cereals, raisins, pasta, chocolate, ginger, bread, and rubbed parsley for seasoning. Only purchase food in amounts you can use in a short period of time (between 2 to 4 months), especially during the warm summer months. Remove all food and clean cabinets. If you decide to use insecticides, choose a household insecticide labeled for pantry pests. The beetle life cycle lasts about three years or more, with the larval stage ranging anywhere from 20 to over 100 days, and the pupal stage around eight days. The antennae of the Drugstore beetle end in three club-like segments. In other places, they even feed on poisonous materials such as strychnine, belladonna, and wheat poisoned with strychnine. Drugstore beetles are more reproductively successful at warm temperatures. The complete life cycle takes about 75 days depending on conditions. Dry dog food is one item frequently infested by the drugstore beetle. If this document didn’t answer your questions, please contact HGIC at hgic@clemson.edu or 1-888-656-9988. Phil Pellitteri, UW Insect Diagnostic Lab Clemson University Cooperative Extension Service offers its programs to people of all ages, regardless of race, color, gender, religion, national origin, disability, political beliefs, sexual orientation, gender identity, marital or family status and is an equal opportunity employer. Our Linkedin network is a great place to meet the best professionals in our industry. Uninfested dry goods should be stored in sturdy glass or plastic containers with tight fitting lids to prevent spread of the infestation. Cabrera, University of Florida. Do not clean cabinet with water because this may leave a pasty residue attractive to the pest. Infestations sometimes originate from birdseed or pet food stashed away by mice in an attic or behind wall. In a library, they may destroy books and manuscripts. Join our mailing list to receive the latest updates from HGIC. Adults are 1/8 to 1/10 inch long and cylindrical. Vacuum all dust and debris from cabinets and floor of the kitchen. The pupal period is 8 to 10 days long. Don’t forget to inspect your bookcases; the drugstore beetle has even been known to nibble on books. Life Cycle: Both beetles can live from two to four weeks, and during this time, females can lay 30 to 100 oval, whitish eggs in foodstuffs. Larvae form a little round ball or cell which becomes its cocoon, and in which it pupates. Female drugstore beetles lay eggs singly in suitable foodstuff. The drugstore beetle got this common name because it was often found feeding on drugs in pharmacies. Drugstore Beetle Life Cycle. Life Cycle and Habits. Life cycle:  The life cycle of the drugstore beetle takes three to four months at room temperatures. The number of beetles should drop within one to two weeks of the clean-up. Comparison of a larva of a cigarette beetle, Lasioderma serricorne (F.), (left) and the drugstore beetle, Stegobium paniceum (L.) (right). COVID-19 Extension Updates and Resources ... More Information », Factsheet | HGIC 2419 | Published: Feb 6, 2001 | Print, Drugstore Beetles©Pest and Diseases Image Library, Bugwood.org. We teach, learn, lead and serve, connecting people with the University of Wisconsin, and engaging with them in transforming lives and communities. Beetles usually breed in damaged grain, grain dust, high-moisture wheat kernels and flour. The complete life cycle requires 7 months. If beetle numbers remain high, look for other sources of the problem within the home. for Aphids, Centipedegrass Yearly Maintenance Program. Female Drugstore beetles lay eggs, normally about 75 at a time, on a food product. Larvae and pupae stages last about 23 weeks and the adult female will live 65 days. Adult beetles are rounded in profile, oval shaped, light-brown color, 1/16-1/8 inch-long. In common with other beetles, this species passes through four life-stages: egg, larva, pupa and adult (pictured below). Discard all infested food. Holes and damage found in packaging are caused by the adults as they leave the product. Use them only as a last resort and carefully follow the label directions. A favorite habitat is the drugstore where this beetle may forage dried foods, sweets, spices, books, leather, and even prescription drugs. Keep cabinets and the surrounding area clean and free from food spillage. Copyright © 2020 Clemson UniversityClemson Cooperative Extension | 103 Barre Hall Clemson, SC 29634864-986-4310 | Contact UsHGIC@clemson.edu, College of Agriculture, Forestry and Life Sciences, Integrated Pest Management (I.P.M.) Avoid using insecticides around food. At the end of the larval stage, they form a little round ball or cell, which becomes their cocoon. The Drugstore Beetle is most common in warm climates or in heated structures, but can be found worldwide. After treatment, good sanitation and proper storage are keys to preventing future infestations. Other names: Drugstore beetle, ... Life cycle. Larvae and pupae stages last about 23 weeks and the adult female will live 65 days. At the end of the larval stage, they form a little round ball or cell, which becomes their cocoon. It can have between 1-4 generations, depending on the favorability of the surroundings. Small C-shaped grubs can be found feeding inside infested products. The drugstore beetle and the closely related cigarette beetle are small reddish-brown beetles that infest grains, pet food, straw flowers, tea, old rodent bait, red pepper, flour, spices, leather, animal hair, tobacco and other dried plant material. The Drugstore beetle has a wide range, but is most likely to be found in warm climates.  The Drugstore beetle is most likely to be found indoors where temperatures are warm and food sources are plentiful. Give special attention to cracks and crevices in cabinets. Female drugstore beetles lay eggs singly in suitable foodstuff. Small C-shaped grubs can be found feeding inside infested products. The head is not visible from above, giving a humpbacked appearance when seen from the side. Life cycle: The life cycle of the drugstore beetle takes three to four months at room temperatures. Feeding of the larvae has been known to do the most damage, but all Drugstore beetles will feed on stored food products. Adults can often be found a good distance from the source, which makes locating the source of the infestation difficult. Heating infested products to 140°F  for two to three hours or freezing at 20°F  or less for 48 hours will kill all life stages. Larvae tunnel through the product, munching as they go. Infested products often have small round “shot holes” in packaging and large amounts of dusty frass (insect waste) inside. The larval (immature) period is up to 57 days. Control:  Because drugstore beetles are food pests, the best control is to clean up and dispose of infested products. The larval period ranges from 4 to 5 months, with the pupal stage lasting from 12 to 18 days. Allow the insecticide to dry before returning food to cabinets. Properly ventilate the storage area to discourage these moisture-loving pests. At home, “rotate stock” just the way most stores do. Although it is named for its foraging of drugstore products, it may also rummage through and feed on beans, dried fruits and vegetables, flour, herbs, nuts, and sweets. You cannot control this pest with insecticides because you cannot spray the food source. Feedback, questions or accessibility issues: © 2020 The Board of Regents of the University of Wisconsin System. Historically, these insects were often pests of herbal medicines and pharmaceuticals, thus their common name. Photograph by B.J. The Drugstore beetle appears “hump-backed,” is about 1/8 inch long, oval-shaped, and is various shades of brown. Adults are 1/8 to 1/10 inch long and cylindrical. Drugstore Beetles and Humans. As with all beetles, it has an egg, larval, pupal, then adult stages. Identifying all infested food and discard or treat (by freezing) them. This stage lasts from 12-18 days. Our Facebook page to discuss with other digital marketers latest news and strategies in SEO and SMM. Infested products often have small round “shot holes” in packaging and large amounts of dusty frass (insect waste) inside. Although its name is drugstore beetle, this insect is a general feeder that attacks everything edible and many things people would consider inedible. Item number:  XHT1103. The female flour beetle can lay between 300 and 400 eggs during her lifetime [a period of 5 to 8 months]. Drugstore Beetle Scientific Name: Stegobium paniceum. They lay between 23-114 eggs that hatch in 9 days. Follow us on Twitter for important industry news and latest updates in digital marketing. Cigarette and drugstore beetles are often confused with one another. Drugstore beetles are more reproductively successful at warm temperatures. Drug store beetles are unusual for grain pests because the adults can fly and often collect near lights and windows.

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