Published October 21, 2024 • Updated July 17, 2026
Reviewed by Julie Miller, BA in Language Arts, Editorial Lead, Dr. Killigan’s
TL;DR: If you're seeing small brown moths around birdseed, pet food or in your garage, they're likely pantry moths (Indian meal moths). Remove the infested food source, clean the surrounding area thoroughly, store new birdseed in airtight containers and use Pantry Moth Traps to help interrupt the breeding cycle and monitor for remaining adults.
Pantry moth infestations do not always begin in the kitchen. Garages, sheds and storage areas can be common places to discover them.
If moths have started appearing near stored birdseed, the next step is to confirm the infestation, locate the source and prevent it from spreading. This guide explains what to look for, why garages are common trouble spots and how to clear the infestation with a practical step-by-step approach.
Signs of a birdseed moth infestation
A birdseed moth infestation often develops inside the bag before adult moths become noticeable. Inspect the birdseed and the surrounding storage area for these signs:
- Fine, silky webbing between seeds
- Seeds clumped together by webbing
- Small cream-colored larvae inside the bag
- Larvae crawling along shelves, walls or ceilings
- Silken cocoons in cracks, corners or other sheltered areas
- Small tan or brown moths repeatedly appearing near the stored birdseed
Note: One moth may have entered from elsewhere. Repeated moth activity or evidence inside the bag is a stronger sign that pantry moths are reproducing nearby.
Why birdseed attracts pantry moths
Birdseed attracts pantry moths because it contains the grains, seeds and nuts their larvae feed on as they develop. Mixed blends may include sunflower seeds, cracked corn, millet and other dry ingredients, giving larvae several food sources within a single bag.
The tightly packed seed also creates a sheltered environment where larvae can feed, grow and spin their silken webbing with little disturbance. Warm storage conditions can make that environment even more favorable by allowing the larvae to develop more quickly.
Why are there pantry moths in my garage?
Garages are common places to discover pantry moth infestations because they often contain birdseed, pet food and other stored dry goods. These products may sit undisturbed for weeks or months, giving pantry moths time to develop before anyone notices.
Garages also tend to hold several dry products in one area. Bags may be stored close together on shelves, floors or in corners, creating multiple nearby food sources for an infestation.
Note: If your garage is attached to your home, adult pantry moths may also move indoors in search of other nearby food sources. This can lead to moth activity in kitchens, pantries or other areas where dry goods are stored.
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How to get rid of birdseed moths
Getting rid of birdseed moths requires more than catching the adult moths you see flying around. To eliminate the infestation, you'll need to remove the infested birdseed, inspect nearby dry goods, clean the storage area and monitor for remaining adult moths.
Follow these steps to help interrupt the pantry moth life cycle and reduce the chance of the infestation returning:
- Locate the source. Inspect the birdseed for the signs described above.
- Remove heavily infested birdseed. Seal and dispose of the bag.
- Inspect nearby stored products. Check pet food, grass seed and other dry goods for signs of pantry moth activity.
- Clean the storage area thoroughly. Vacuum shelves, corners and cracks to remove larvae, cocoons and food debris. Empty the vacuum immediately after cleaning.
- Use Pantry Moth Traps to monitor activity. Pantry Moth Traps can capture adult male moths and help indicate whether the infestation has been brought under control.
Looking for a complete guide? Learn more about identifying, treating and preventing pantry moth infestations in our How to get rid of pantry moths guide.
Should you throw away infested birdseed?
In most cases, yes. Birdseed that contains webbing, larvae, cocoons or repeated moth activity should be discarded.
Once pantry moths have established themselves inside a bag, it is difficult to remove every life stage. Keeping infested birdseed allows eggs and larvae to continue developing, making it more likely the infestation will persist.
If only one or two adult moths are present and the birdseed shows no evidence of infestation, disposal may not be necessary. When in doubt, replacing the birdseed is often the most effective way to eliminate a possible source.
What else can birdseed moths infest?
Pantry moths can infest many dry foods and stored products beyond birdseed. Suitable sources may include pet food, grass seed, grains, cereals, nuts, seeds and dried fruit.
Like birdseed, these products can provide suitable conditions for pantry moth larvae to develop if eggs are present. Products stored in opened bags or loosely sealed containers are generally more vulnerable than those kept in airtight containers.
For a more complete list of vulnerable foods, see What do pantry moths eat?
How to prevent birdseed moths
Good storage habits can help reduce the risk of future pantry moth infestations. Although no method can completely prevent an infestation, these practices can make problems easier to detect and less likely to spread.
- Store birdseed in airtight containers. Transferring birdseed from paper or plastic bags into tightly sealed containers helps protect it during storage.
- Inspect new bags before storing them. Look for webbing, clumped seed or other signs of pantry moth activity before bringing birdseed into your garage or storage area.
- Freeze questionable birdseed before storage. If a new bag appears unaffected but may have been exposed to pantry moths, seal it in an airtight container and freeze it at 0°F for at least seven days before use.
- Buy only what you'll use within a reasonable time. Smaller quantities spend less time in storage, reducing the opportunity for an infestation to develop unnoticed.
- Clean up spilled birdseed promptly. Loose seed can attract pests and make it harder to spot signs of an infestation.
- Rotate older birdseed first. Using older bags before opening new ones helps prevent birdseed from sitting undisturbed for extended periods.
- Monitor storage areas with Pantry Moth Traps. Traps can provide early warning of new adult moth activity, making it easier to respond before another infestation becomes widespread.
A personal note
I have loved feeding birds since I was young. One afternoon in grade school, I found a torn bag of birdseed scattered across a quiet street. I remember seeing what looked like larvae moving through the seed. I was fascinated. Looking back, I still am. That moment made me curious about birds, bugs and the tiny things hiding in the food we store.
Explore more
-
How to get rid of pantry moths
(A complete guide to identifying, treating and preventing pantry moth infestations throughout your home.) -
What do pantry moths eat?
(Learn which foods and stored products pantry moths infest and why some products are more vulnerable than others.) -
Pantry moth life cycle
(Understand how pantry moths develop from egg to adult and why breaking the life cycle is the key to eliminating an infestation.) -
Why pantry moths keep coming back (and how to prevent them)
(What to do if moths move indoors — and how to keep them from returning.)
