Author Archives: Greg Pettis

Grain Weevil Treatment

Grain Weevil Treatment and Tips: Protecting Your Home

Grain weevils might be tiny in size, but the havoc they can wreak upon your home is anything but small. These pesky pests are a common nuisance for homeowners — especially in regions with a bustling grain culture, like Lancaster and York County. If you’ve discovered these unwelcome guests in your pantry, read on to learn some effective grain weevil treatment methods.

Understanding the Grain Weevil

Before you tackle your infestation, it’s important to understand some grain weevil basics. The grain weevil is a type of beetle that is notorious for its fondness for grains and dried foods — including wheat, corn, barley, oats, and even macaroni. While some grain weevils may also be discovered in flour, the flour beetle is a different species. Flour beetles (most commonly confused flour beetles and red flour beetles) are a kind of grain beetle.

It is also important to note that the appetite of grain weevils isn’t confined to pantry items: They’ll also nibble on fabrics, books, and even wallpaper, making them a multifaceted threat in your household.

Grain weevils are survival experts, and their lifecycle is built around ensuring that their offspring prosper. Adult weevils lay eggs in grains — and once hatched, larvae can mature within the kernels themselves. The larvae are most often be found in foods like birdseed, popcorn, nuts, and Indian corn.

These pests multiply rapidly, with many adult females laying over 200 eggs in just a matter of weeks. Therefore, a full-blown infestation can occur without any knowledge to the homeowner.

Types of Grain Weevils

Spotting a grain weevil in your pantry might prove challenging, as these pests typically measure around the 1/8th inch mark. All grain weevils are slender with distinctive elongated snouts. Grain weevil larvae are plump, cream-colored, and legless.

While there are numerous species, the most common are granary weevils, rice weevils, and maize weevils. Understanding the subtle differences between these species is important for effective pest management.

  • Granary weevils, as their name suggests, are typically found in grains like wheat and barley. They are chestnut brown in color.
  • Rice weevils target rice but are not averse to wheat or corn. They are slightly smaller and darker (often reddish brown) than granary weevils. This variety also has light red to yellow spots on its back.
  • Maize weevils prefer corn but will not shy away from other grains. They closely resemble rice weevils and are glossy and nearly black in color.

Rice and maize weevils can fly, while granary weevils cannot — a factor that can influence the spread and treatment of their infestation.

Grain Weevil Prevention

An ounce of prevention is worth a pound of cure, and this adage is especially pertinent when it comes to pantry pests like grain weevils.

Proper Food Storage Practices

Weevils can infiltrate staple foods that are often left out or stored inadequately. Implementing airtight storage for all grains and dried goods can significantly reduce the risk of an infestation by eliminating the weevils’ oxygen supply.

Regular Cleaning and Maintenance

Keeping your shelves and storage containers clean is a simple but effective defense. Regularly dispose of crumbs and residue to minimize potential food sources and hamper the weevils’ reproductive efforts.

Sealing Cracks and Crevices

Weevils are adept at squeezing through tiny openings. Make sure to seal any cracks in your pantry or kitchen, as these serve as welcome avenues for pests of all kinds.

Grain Weevil Treatment Options

Homeowners may be tempted to handle the situation themselves, but grain weevil elimination can be challenging. Here are a few treatment options to help you temporarily get rid of grain weevils.

Natural Remedies

Taking a natural approach to pest control can be both effective and environmentally friendly. Here are some detailed natural remedy strategies:

Bay Leaves: Used in culinary practice for their distinctive fragrance, bay leaves are also a powerful deterrent against grain weevils. The aromatic compounds in the leaves are unpalatable to these pests. Tuck whole bay leaves into your canisters of flour, rice, and other grains. Replace them periodically to maintain their deterrent effect.

Cloves: Much like bay leaves, cloves possess a strong scent that weevils find repelling. You can place whole cloves in your pantry or sprinkle powdered cloves around storage areas. The powerful eugenol oil not only disrupts the weevils’ feeding habits, but also acts as a natural insecticide.

Diatomaceous Earth: A fine powder made from the fossilized remains of diatoms, diatomaceous earth can be sprinkled around your pantry and on shelves. The sharp, microscopic edges of the powder cut through the weevils’ exoskeletons, leading to dehydration and death.

Freezing: If you suspect that your grains may already be infested, freezing is an excellent preemptive strike. Place your grains in the freezer for at least four days. The extreme cold will kill any larvae or eggs, stopping the infestation in its tracks.


While chemical treatments can kill grain weevils, they must be used with caution to avoid possible health hazards or contamination. It is imperative to select solutions that are specifically approved for use near food and to strictly adhere to the product’s instructions.

We recommend against using chemicals or traditional pesticides in food areas. Not only are many of these products toxic to humans and pets, but they can also have detrimental effects on the environment. Insecticides are best employed by professional exterminators as part of an integrated pest management strategy.

How to Get Rid of Grain Weevils for Good: Call a Professional

To ensure that your weevil infestation is fully eliminated, contact an experienced pest control company like Dominion. Our experts are armed with the knowledge and tools to help you get rid of grain weevils long-term.

Dominion Pest Control employs a variety of proven techniques to assist homeowners in the battle against grain weevils.

Advanced Monitoring and Inspection Protocols

Experts at Dominion Pest Control use state-of-the-art monitoring systems to identify the exact species of weevil, thereby ensuring that the most effective treatment plan is implemented. This precise identification is fundamental to our success.

Professional Grade Pesticides

Where necessary, Dominion Pest Control applies professional-grade pesticides that are not readily available to the public. Made by Nature-Cide, these commercial-grade solutions kill adult weevils on contact — reflecting our priority for swift and decisive action. Because these products are made from naturally sourced components like clove oil and cottonseed oil, they are both nontoxic and environmentally friendly.

Insect Growth Regulators

Our technicians may also use insect growth regulators (IGRs) as part of the treatment. These substances interfere with the weevils’ life cycle, preventing them from reaching maturity and reproducing. An added benefit of IGRs is that they can remain effective for several months.

Sealing and Proofing Services

Beyond elimination, our services include sealing and proofing the affected structures to prevent future infestations. This may involve repairing any cracks or holes where pests could potentially enter.

Ongoing Support and Follow-Up

After the initial treatment, Dominion Pest Control provides ongoing support and follow-up visits to monitor the situation and ensure that the grain weevils are gone for good.

If left unchecked, grain weevils can swiftly transform from a small problem to a large-scale infestation. Remember, timely prevention and effective treatment are imperative in safeguarding your home against these pantry pests.

To get rid of grain weevils quickly and keep them under control, contact Dominion Pest Control. Call us today at (717) 393-7879 or contact us here for a free consultation.

How to Get Rid of Grain Beetles

How to Get Rid of Grain Beetles

Are you tired of finding grain beetles crawling around in your pantry or flying around in your kitchen? Also referred to as “grain bugs,” these tiny reddish-brown pests are a common nuisance for many homeowners — but luckily, there are ways to get rid of them. In this guide, we’ll discuss the best methods for eliminating grain beetles and keeping your home pest-free.

Continue reading
Drain Flies (Sewer Flies)

Drain Flies (Sewer Flies): Everything You Need to Know

A common nuisance, drain flies are small, pesky insects that can be found year-round due to ideal living conditions in our homes. In this post, we’ll cover everything you need to know about drain flies, commonly called sewer flies — including what they look like, if they’re harmful, and most importantly, how to get rid of them.

Continue reading

Winter Bugs and Other Pests: Where Do They Go and How Do They Survive?

As we enter the winter months and anticipate the holiday season, there are many things to look forward to: cozy nights by the fire, holiday decorations, warm sweaters…but pests aren’t on the list. For residents of Lancaster and York counties, winter bugs like ground beetles, stink bugs, ladybugs, boxelder beetles, and grain beetles can become a major nuisance in the winter. Other common winter pests in Central PA include mice, centipedes, silverfish, cockroaches, and spiders.

But how do these bugs and other pests survive the cold — and where do they go? Let’s take a look at some of the most common winter pests in Central PA and how they manage to make it through the season.

Continue reading
stink bug control: brown marmorated stinkbug

Stink Bug Control: Debunking Myths and Revealing Effective Strategies

Are you tired of dealing with those pesky stink bugs invading your home? Well, you’re not alone! Many homeowners, just like you, are seeking effective strategies for stink bug control, to eliminate these nuisance insects.

For effective stink bug control, it’s important to understand the myths surrounding them. In this post we debunk a few common myths surrounding stink bugs and concentrate on providing you with accurate information to tackle these pesky invaders. So, let’s separate fact from fiction and arm you with the knowledge you need to keep stink bugs at bay.

Continue reading

How to Get Rid of Roaches – A Comprehensive Guide

Cockroaches — or as they’re more commonly called, roaches — are a nuisance in homes everywhere. Not only are they unsightly, but they can also spread disease. In fact, roach fecal particles in the home are the number one cause of asthma in children. Plus, roaches can spread salmonella and gastroenteritis. So how do you get rid of roaches thoroughly and effectively?

Continue reading
house centipede

How to Get Rid of Centipedes in Your House

When you hear the term “creepy and crawly,” one of the first things that comes to mind is a centipede. Fun fact: Centipedes aren’t actually insects; they’re arthropods (creatures with no spine, joint segments and hard shells — like spiders). However, that doesn’t make them any less icky. Below is some more information, along with some tips on how to get rid of centipedes in your house.

Continue reading
mattress with teddy bear

How to Eliminate Bed Bugs from Your Home

If you think you may have bed bugs in your home, it’s important to act right away. These pests are not only a nuisance, but they can also cause health problems. Health wise, bed bugs are known to cause skin irritation and allergies. In some cases, this can lead to secondary skin problems including infections. That’s why it’s important to exterminate bed bugs as soon as you suspect you have them. But how do you get rid of bed bugs before you can see an exterminator? We have a few tips.

Continue reading

How to Get Rid of Fleas Fast

Fleas can be a big problem for any homeowner. If you have fleas in your home, it’s important to get rid of them as soon as possible. The best way to do this is to hire a lawn pest specialist. A lawn pest specialist will be able to get rid of the fleas quickly and efficiently. They will also be able to advise you on how to prevent fleas from coming back in the future.

dog scratching itself because of fleas
Continue reading
tree with termite tracks

How do you know if you have termites?

If you suspect that you might have termites, it is important to know how to identify them. Termites can cause significant damage to your home if they are left untreated, so it is important to get rid of them as soon as possible. In this blog post, we will discuss the signs of a termite infestation and what you should do.

Maze-like patterns in furniture, floorboards, or walls, are a common sign of termites that are easily recognizable. If you see these patterns, it is likely that there is an infestation. However, there are many more subtle signs that you might have termites. For example, wood may crumble or be damaged. You might also notice that your doors or windows are sticking, or that there are small pinpoint holes in your walls. Let’s dive into some lesser-known signs that will help you determine if you have termites.

Continue reading