The foreign grain beetle is a common pest in Kentucky during mid- to late summer when it may be is found in tremendous numbers inside buildings. They need a relative humidity of more than 65% to reproduce. Foreign grain beetle adults and larvae feed on molds and fungi, and not on grain as the name would imply. Foreign grain beetles are rarely found in dried food products in homes. Orkin can provide the right solution to keep foreign grain beetles in their place and out of your home or business. It is a small, flattened insect, about 1/12 inch long and reddish-brown in color. Foreign grain beetles are found throughout the world, including the United States and Missouri. I was very concerned about Lyme Disease, as we have a 4-week-old infant in the house, and immediately called for a home visit. As strong fliers, the tiny foreign grain beetles spread to all rooms of the house. Food products attacked include cereal grains, flours, beans, dates, figs, biscuits, yams, tobacco, cocoa, groundnuts, copra and palm kernels. He is meticulous in every aspect of his job. If the beetles are known to be originating outdoors, there may be some benefit to exclusion techniques such as a use of tight-fitting screens and doors and sealing or caulking cracks and crevices around windows, doors and screens to reduce the amount of entry. The foreign grain beetle is found infesting brand-new homes in the late summer-early fall. Lice are also flattened but are soft-bodied. In many of these situations, when the wood and sheetrock dry out, both the fungus and beetles die. It can be distinguished chiefly by slight projections or knobs on each front corner of the pronotum, and its club-shaped antennae. The best way to prevent foreign grain beetles is to keep moisture levels reduced on your property, whether it be new construction or an older home or business with moisture problems. Foreign grain beetles do not bite or cause any structural damage, but they may be a potential reservoir of pathogenic organisms, such as Salmonella (Spencer & Jespersen, 1998). Controlling foreign grain beetles begins with a thorough inspection. Typically, foreign grain beetles are no more than nuisances in homes. 2150 Beardshear Hall A Better Business Bureau Accredited Business. Most new homes have excess water in the wood and drywall. (800) 262-3804, Iowa State University | PoliciesState & National Extension Partners, Like us at Plant and Insect Diagnostic Clinic, Like us at Department of Plant Pathology and Microbiology. The application should be made into cracks and crevices. IMPORTANT MESSAGE: Coronavirus, Our Message to Our Customers, Food Processing & Pharmaceutical Facilities. They are reddish-brown in color and when looking at them from above, the shell directly behind their head has rounded projections coming off the front corners. Problems with this pest are usually self-limiting as the seasons change and as moisture trapped in new houses dries out naturally. The foreign grain beetle received its name from being a “foreign” pest in grain storage facilities. When found in older homes, the source is most likely water leaks or other moist conditions that are supporting fungus growth. They live in damp areas where fungus grows. Virginia Beach, VA. Many homeowners are introduced to this beetle when purchasing a new home th… © All rights reserved. I understand my consent to be contacted is not required for me to make a purchase with Orkin. They invade where leaks, floods, or other moisture problems have caused fungus to grow. The foreign grain beetle is approximately 2 mm ( 1 ⁄ 12 in) in length. Beetles infesting new houses are usually in wall voids feeding on the fungi that grow on moist wood and drywall. Powered by Coalmarch. The foreign grain beetle is a small insect; adults can grow to be 1/8th of an inch in length. If you have a crawlspace under your home, contact a pest management company to see if you have adequate ventilation and that this crawlspace is dry. Beetles infesting new houses are usually found in wall voids feeding on the fungi that grow on moist wood and drywall. Copyright © 2020ISU Extension and Outreach They do not infest furniture, clothing or other property. Some steps can be taken to speed up the drying process: If an infestation is found in an older home, correct conditions that provide high moisture situations and help foreign grain beetles survive. If you live outside of Iowa please do not submit a sample without contacting the Plant & Insect Diagnostic Clinic. It requires moist conditions and develops only when the relative humidity is above 65%. The foreign grain beetles also die; however, treatments may be needed in those situations where large numbers are being seen. They cannot bite or sting and do not attack plants, furniture or the house structure. The foreign grain beetle is approximately 2 mm (​ 1⁄12 in) in length. The antennae of foreign grain beetles are club-shaped (Figure 2) and the antennae of rusty grain beetles are shaped like a series of beads but are not clubbed (Figure 1), although you may need to magnify them to see this. The foreign grain beetle (Ahasverus advena) is a species of beetle in the family Silvanidae. Infestations in new homes often start inside wall voids. They may even call a pest management professional to control the infestation. It can be distinguished chiefly by slight projections or knobs on each front corner of the pronotum, and its club-shaped antennae. Enter a zip code below to view local branches. A vacuum cleaner works just as well in terms of removing any visible beetles which are present. In the meantime, homeowners plagued by large numbers of beetles should contact a pest management professional for assistance.

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