Prevent beetles from invading your home…

Call us now to help with any beetle or other pest control issues!

  • Get the proven solution to safely eliminate beetles from your home
  • Join our more than 500,000 happy customers
  • Get rid of beetles before they become a problem
  • For a limited time, get $50 OFF1 Pest Control2 from a pest control expert in our network.

Sawtoothed Grain Beetle and Merchant Grain Beetle

Need to get rid of beetles? Read on to learn the answers to all of your important questions. Need help? Call our professionals today to get started.

Schedule Today!

Grain Beetles

Sawtoothed beetles and merchant grain beetles are two of the most commonly detected insects in processed grain, oats, pet foods and seeds. The sawtoothed grain beetle and merchant grain beetle are considered major pests of stored food products both in homes as well as in commercial plants.

Sawtoothed Grain Beetles and Merchant Grain Beetle Appearance

These two species of grain beetle are nearly identical. Both the sawtoothed grain beetle and the merchant grain beetle are thin and flat. They are brown in color, about a tenth of an inch long and have 6 small sawtoothed-shaped projections on their heads, which can only be seen using a magnifying glass. It is these sawtoothed-shaped projections that give the sawtooth beetle its name. The merchant grain beetle has bigger eyes than the sawtoothed grain beetle, and a smaller area directly behind the eyes. The most obvious difference between the two species of grain beetle is, however, that the sawtoothed grain beetle does not fly while merchant grain beetles are able to fly.

Sawtoothed Grain Beetles and Merchant Grain Beetle Behavior

Merchant grain beetles will eat any foods that are vegetable in origin. Their main food source is broken grain kernels, however, if they are able to penetrate whole grain kernels, they will eat those too. Sawtoothed grain beetles feed on grains and grain products as well as chocolate, drugs and tobacco. 

Why Are Grain Beetles Considered Destructive Pests?

During their adult lifespan, sawtoothed grain beetle females can lay up to 285 eggs, while merchant grain beetle females can lay between 500 to 1000 eggs, a time period that can last between 6 to 10 months. Grain beetles lay their eggs directly in the food they infest, so not only are they prolific breeders producing large numbers of beetles quickly, they infest and destroy any food stores they come across. The act of feeding on grain results in an increase in water content in the stored grain product due to the metabolic activity of the beetles. This can result not only in shrinkage of the grain product, but also in mold growth. Both of these activities can make large amounts of grain unfit for use.  

If you come across sawtoothed grain beetles or merchant beetles in your home, immediately identify any infested food and dispose of it. If you are concerned about grain beetles in your home, contact a trained and knowledgeable pest control specialist in your area.

Find A Pest Specialist For Beetle Control

If you are concerned about beetle control for your home, please give us a call or fill out the form on this page. PestControlExperts.com is a team of experts who are highly qualified to provide the best recommendations for you and your home, no matter which part of the United States you live in.

Call 855-891-5410

Interested in other recommendations?

Call to Get Started

Get Your FREE Quote!

Call 855-891-5410

To Get Started

Call to Get Started

© 2022 PestControlExperts.com, all rights reserved. Some restrictions may apply. Read our Privacy Policy and Terms & Conditions.

The creator of this review received compensation by RMICPA, LLC on behalf of Terminix®. This review is the opinion of its creator and its claims are not endorsed or evaluated by RMICPA, LLC.

1/* - Treatments and Covered Pests defined in your Plan. Limitations apply. See Plan for Details

2 - SAVE $50 on a Terminix® Pest Control Plan or $50 OFF pest control: Offer valid only at participating locations. Single-family dwelling units only. Requires purchase of a new annual residential pest control plan. Offer may not be combined with other offers, bundled service offerings or discounts. Additional limitations apply. Not valid for existing pest control customers. Offer expires 12.31.2020.

3 - $50 OFF Quick Guard® Mosquito Service: Offer valid only at participating locations. Single-family dwelling units only. Requires purchase of an annual Mosquito Service Agreement. Offer may not be combined with other offers or discounts. Additional limitations apply. See agreement for details. NOT AVAILABLE IN NY, VT, NH AND PORTIONS OF CT. Offer expires 12.31.2020

4 - Save 10% on a termite plan+: Offer valid only at participating locations. Single-family dwelling units only. Offer may not be combined with any other offers or discounts. Discount applies to purchase of new annual termite treatment plans only; discount does not apply to Dual Advantage Protection Plans, bundled service offerings or termite coverage plans. Additional limitations apply. Not valid for existing termite customers. Offer expires 12/31/2020.

# - Exclusive web offer only. This product is not sponsored by, endorsed or affiliated with Terminix®