Facts About Angoumois Grain Moths
The Angoumois grain moth loves a corny insect. You’ll find these moths feeding on ears of corn, their kernels, and other stored grains. These moths may be living right on the corn plant itself, or it may be transferred into the storage facility where larvae may be deposited. This can damage a substantial amount of the corn crop, not only affecting its consumption, but also the economic situation of the farmers who grow it.
These moths are not found only in North America. They are found all over the world in Australia, Brazil, China, and Japan. The moth gets its name from the French province in which it was first identified. However it is not native to France, and its origins are unknown because of its widespread nature.
Angoumois Grain Moth Damage
While the presence of adult moths is an annoyance, they are not the true problem. The larvae of these moths cause the most damage during the winter months when the grain is in storage, leaving contaminated material once the warmer seasons come around.
Life Cycle & Infestations
Female moths will lay between 80 to 200 eggs. There is one egg per kernel of corn. Once the eggs hatch, the larvae produced will remain inside the kernel until they reach adulthood. During this time, they feed on the germ of the plant. They then develop into the pupae stage within a cocoon inside the kernels, and later emerge. This can take between 30 and 40 days to occur. Once they reach the adult stage, they will only live for around a week and will not feed.
You’ll notice if your corn is infested because they leave distinct exit holes that have a clear flap of skin hanging over them.
As is the case for most moths, anytime after dusk is when you will see the most activity from them. They will often be attracted to various light sources. If these are in your home, they will be flying all over and not stick to one general area.
Types of Angoumois Grain Moths
Angoumois Grain Moth Identification
Adult Angoumois grain moths are smaller than other stored-product moths, having wingspans of only 12 to 14 millimeters. Its body is only between five and seven millimeters long and is a golden brown. The wings of this moth are light gray or brown and tinged with black spots.
The eggs of the Angoumois grain moth are white ovals flattened at one end. They will eventually develop a reddish hue. Once they hatch, the larvae that are produced are a ⅕ of an inch long with white bodies and yellow heads.
Angoumois Grain Moths in the House & the Closet
In the home, you’ll often find these moths in popcorn and decorative ears of corn. Anything that has seeds or kernels is susceptible to having the Angoumois grain moth around.
Frequently Asked Questions
How Do I Get Rid of Angoumois Grain Moths in the Home?
In order to get these moths in check, make sure to do a careful scan of any items that may be harboring the insect. If there are any foods or household items with larvae in or around them, promptly throw it away. Clean the cabinets and pantries with soap and water, paying special attention to any areas where food particles may be trapped.
Store any grain or seed products in airtight containers to discourage the moths from laying their eggs inside.
In infested grain bins, empty the whole whole bin to be sure that all potentially contaminated kernels are discarded. Make sure to thoroughly clean and sanitize storage containers before reintroducing grains. Any residue may be harboring unseen eggs or larvae. While these moths can cause serious damage, few corn cribs see large enough populations to warrant any real worry.
What are the Benefits of Professional Angoumois Grain Moth Pest Control?
A pest management professional has the education, equipment, and skills necessary to effectively address an Angoumois grain moth problem.
Finding and treating the Angoumois grain moths can be challenging, especially if they are spread throughout the home.
A pest management professional provides their expertise to identify the pest problem and determine the best possible solution to resolve the Angoumois grain moth infestation.
