What Insect Causes Small Holes In External Wood?

Carpenter bees, often mistaken for bumble bees, are destructive wood-boring insects that leave small round holes in furniture and wooden flooring. These larvae bore holes in the timber, leaving behind a powdery residue. The woodworms will happily spread from one hole to another.

Powderpost beetles live inside wood, feeding on starches until they reach maturity. They tunnel out to the exterior of the wood, leaving powder-fine sawdust and tiny sets of woodworms. When their larvae hatch, they eat their way out of the wood, creating holes and tunnels in wood structures, support beams, outdoor furniture, and more. The most noticeable evidence of a beetle problem is the appearance of small exit holes, which perforate wood surfaces with tiny openings, making it look like a sponge.

There are three most destructive groups of powderpost beetles: lyctids, carpenters ants, and wood beetles. Carpenter ants leave behind wood shavings called frass, pushing it through small holes in wood structures. Emerging adults make tiny 1/8-inch holes.

There are two common types of powderpost beetles: anobiid and lyctid. If the holes are about 1/8″ in diameter, it’s probably the anobiid. Carpenter bees excavate nesting tunnels and have distinctive entry holes about the size of a fingertip. Wood beetles like powderpost beetles make almost perfect holes in wood, with their bodies shaping the shape of their bodies.

Insects like termites, carpenters ants, and wood beetles are the most well-known problem pests.


📹 “stopping animals” from DIGGING into your foundation (simple fix)

… these animals have dug in here i’ll show you how to discourage animals from coming back we’re gonna fill this hole with gravel …


How do you get rid of wood mites infestation?

Apple cider vinegar and borax are natural insecticides that can be used to combat wood mites. Mix half a cup of vinegar, half a cup of borax, and hot water in a spray bottle and spray the mixture every two or three days until no mites are visible for at least one week. Alternatively, you can use a pre-made insecticide specifically designed to target mites, which should be applied after cleaning the affected areas. Wear gloves, safety glasses, and a respirator mask when using insecticides due to their harsh chemicals.

To prevent repeated infestations, take proactive measures, such as consulting a pest control professional and finding accredited suppliers for reclaimed wood furniture. While it’s impossible to guarantee that wood mites will never return, you can minimize their presence by taking these precautions.

What are the pinprick holes in wood?
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What are the pinprick holes in wood?

Woodworms are a significant issue for homeowners, causing holes in wooden items or beams. They are primarily found in furniture beetles, house longhorn beetles, and deathwatch beetles. Furniture beetles are the most common woodworm problem, while house longhorn beetles target softwoods like pine and spruce. The deathwatch beetle prefers damp, decaying hardwood. Early detection is crucial to prevent structural damage to wooden items.

A damp cloth wipe can reveal signs of infestation, and professional treatment may be necessary if there are accumulations of sawdust piles or deceased dead beetles. Applying wood glue to the holes left by adult beetles effectively traps and addresses the woodworm problem.

What makes small round holes in wood?
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What makes small round holes in wood?

Powderpost beetles are small, narrow, and elongated beetles that attack wood products made from hardwood trees like oak, ash, walnut, hickory, poplar, or cherry. They are often associated with flooring, paneling, molding, window and doorframes, and furniture. Lyctids do not typically infest structural building components, as they usually consist of non-vulnerable softwoods. Tropical hardwoods are particularly prone to lyctid infestation due to poor storage and drying practices before importation.

Bamboo articles are also commonly infested. Plywood fabricated from hardwood veneers may be attacked, but damage is usually confined to the hardwood layer in which eggs were initially laid. Construction plywood, made from softwood, is unsuitable for infestation by lyctids. After emergence and mating, female beetles locate susceptible wood to lay eggs, inserted into tiny pores and vessels of unfinished wood. Surfaces that are stained, varnished, waxed, or painted are immune from attack.

Softwoods like pine are also avoided. Female lyctid beetles “test” the suitability of wood for larvae, which require starches and sugars for development. If the starch content of wood is insufficient (less than about 3%), the females will not use it for egg laying.

How do you get rid of wood burrowing bugs?

Borate-based products can be used to treat and prevent wood-boring beetles and other pests from eating wood. The product label should indicate the amount of water needed to mix the product with. Apply the product to unfinished wood using a sprayer, paint brush, or paint roller. Wood-boring beetles can damage wood structures, outdoor decks, hardwood floors, furniture, and support beams. Although they are beneficial in forests, they become a nuisance when they infest homes and buildings. If you notice signs of wood-boring beetles, you can DIY a treatment using this guide. If you are unsure if you have wood-boring beetles, refer to the identification guide.

What insect bores tiny holes in wood?

The powderpost beetle (Lyctus planicollis) is a wood-boring insect belonging to the Anobiidae family. It is notable for producing a finer dust than other species in this family, such as the deathwatch beetle. Upon emergence as adults, these beetles leave behind tiny, round exit holes in wood, and are more likely to cause damage to wooden structures than other wood-boring insects. They are vital for the sustenance of wood-boring plants.

What are the tiny bugs on wood outside?

Wood mites, small, gray bugs on wood decks, feed on cellulose in wood, potentially causing structural damage. Tiny silver bugs, also known as springtails, are more of a nuisance than a danger, living in organic materials like leaves. Clover mites, tiny red bugs, are harmless arachnids smaller than a pinhead, smaller than a pinhead, and may eat plants but are not dangerous to pets or people. They do not bite and can cause structural damage to the deck. It is important to identify and address these pests to maintain a healthy wood deck.

What makes pinholes in wood?

Powderpost beetles are insects that infest hardwood, causing small exit holes and sawdust piles. There are two common types: anobiid and lyctid. Anobiid beetles prefer wet wood, and once it dries below 20% moisture content, they lose interest. Bora-Care, a borate-based treatment, can slow down the beetles, but it requires thorough wetting of the wood. Lyctid beetles, on the other hand, feed on dried hardwoods, with holes ranging from 1/16″ to 1/8″ in diameter. Proper wetting and treatment can help control these pests.

What do wood bugs look like?

Wood-boring beetles, which are commonly found in the United States, are characterized by their white or cream-colored bodies with dark heads. The most reliable method of identification is through the observation of emergence holes, which are often visible in wood beams, hardwood floors, planks, or furniture. These beetles are typically found in forests and areas of high humidity, which renders them a significant pest control issue.

What do termite pinholes look like?

The exit holes of termites are circular in shape and approximately 0. 25 mm in diameter. Following the departure of swarmers, termite nymphs utilize frass paste to seal the holes.

What does a wood mite look like?
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What does a wood mite look like?

To eliminate a wood mite infestation, follow these steps:

  1. Identify the pests: Wood mites are tiny white bugs that resemble fleas and are difficult to spot individually. They often appear in large numbers, especially in damp or moist environments. Look for signs like leaf damage on indoor plants, wood mites on furniture, or their presence around windows and doors.

  2. Find the infestation’s habitat: Wood mites thrive in damp environments, such as wet wood piles or behind moist tree bark. Identify the source of the infestation, such as a wooden item or wet firewood pile.

  3. Address moisture issues: Address leaks in your home, particularly in bathrooms, kitchens, and under sinks. Use a dehumidifier to reduce moisture levels and ensure proper ventilation in damp areas to prevent mold buildup.

Do small holes in wood mean termites?

To determine if you have termite damage, look for signs such as wood damage, sagging flooring, cracks in walls, doors, hollow wood, or warping paint on wood surfaces. While eyeball tests are the most common way to identify termite damage, it’s important to be aware that termite damage is often beneath the surface and not immediately apparent. Drywood termites often create tiny holes in wood to expel their feces, but only need holes in the size of a pinprick.

Other telltale indicators of termite presence include a baseboard breaking off easily or appearing hollow in places. If the baseboard gives easily under moderate pressure, it could be the wood beneath the paint that has been eaten away by termites. If you notice any of these signs, it doesn’t necessarily mean you have termites. Other factors like excess moisture or earth movement could be the cause, but it’s important to investigate further.


📹 Beginner Wood Filling Mistakes | How to Fill Cracks and Gaps

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What Insect Causes Small Holes In External Wood?
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Rafaela Priori Gutler

Hi, I’m Rafaela Priori Gutler, a passionate interior designer and DIY enthusiast. I love transforming spaces into beautiful, functional havens through creative decor and practical advice. Whether it’s a small DIY project or a full home makeover, I’m here to share my tips, tricks, and inspiration to help you design the space of your dreams. Let’s make your home as unique as you are!

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  • I stuff small 3-6″ pieces of carpet tack strips inside the hole and around the hole itself. Basically if they decide to keep digging it gets sharp and they stop. I will say they have beaten me on a few occasions. You have to put the carpet tack strips inside the hole, fill the hole then with smaller sized gravel, then more carpet tack strip pieces and once again plenty of smaller gravel. I leave a mound of gravel on the top so if they do start getting through the gravel the mound of gravel fills where they are going, follows them. They do not like it and after about two or three times they move on. Carpet tack strips can be put alongside walls and foundation problem areas, but if you have a small cat or dog, make sure you completely cover the carpet tack strips. I do not use them out in the yard as I am just trying to protect my home’s walls and foundation.

  • I have a problem with these pest now. Had a section of a sidewalk (large gravel) collapse and I am not sure if it is a hog or other issue. Trying to find a way to see if hole goes back to foundation. Have 2 for sure holes under a deck and am very concerned about damage done. Need to fix it before needed water proofers hit crawl space. Ideas?🦇

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  • There are several ways in which this might be a dumb question, but could you stain some scrap (preferably from the project), sand it (rinse, repeat, until you have enough) then use that sawdust mixed with glue to get at least a similar look to the surrounding stained wood? Also, if you need to do a more structural fill but don’t love the look of epoxy, could you fill with epoxy resin just bit shallower than the void itself, then fill the remaining space with something like a sawdust/glue mix to visually cover the look of the epoxy? Apologies for any terminological mishaps — I typically only work on projects for myself, and I don’t really ever have to talk out loud (type out loud?) about what I’m doing/thinking about doing.

  • Thanks for sharing. I enjoy all your articles. I’ve tried mixing the matching sawdust with the finish I’ll be using first then mixing it with the either CA or PVA glue. Not sure if this would work with all stains or finishes but it color matches better. It does act like endgrain which ends of darker if your patching over edge or face grain but still closer than having a pale patch or line. Also I have added slivers of wood and sanded them down which works better if you have a linear gap. Even if it’s not perfectly linear I’ve added a tiny sliver and then the sawdust mixture around it. Looks more random like it was just part of the natural wood variation.

  • I dropped a heat lamp face down unto the base floor of a walk in shower. Partical board has been burned, of course the fiberglass base was burned through. All around a 6″ hole. My landlord said if you can fix it great. Otherwise we are going to have to trare out the shower and replace the shower base. Any suggestions?

  • Hi Caleb, this article was helpful… I’m getting ready to sand and refinish a 140+ year old pine floor, but the surface is badly splintered in several places. Do you a suggestion on which on e of these techniques would work best on a pine floor? I won’t be staining the floor, I like the o’naturale look. Thanks! @youcanmakethistoo

  • Needing advice – have a light coloured unsealed door – probably ablonde oak is the closest. It’s developed some weather cracking since installation due to shrinkage?. I wanted to just keep it same colour but varnished/gloss. Any recommendations on how to deal with the cracking and still keep a varnished/gloss finish? (i.e. no painting and no darking staining?). Or am I doomed?

  • Thank you for the article.Lots of good ways to fill those cracks and gaps. Have you ever tried Laquer and Wood dust. I used to sand hardwood floors and we would use the dust from whatever floor ( Oak, Maple, Pine etc… ) and mix with a gallon of Laquer. And apply with a Putty Knife or Trowel. Depending on how many cracks. Not as durable as Epoxy for sure. But it did the job. Thank you for the article.

  • Could you please touch on, even do a special article of filling in wood that has a grain say on a lux wooden window frame, that has some finishing nail holes that you want to fill in and make disappear. How does one fill the holes to match both the slight variance in colour with the wood and the Grain and the whole is right half on the Grain and half in the lighter colour wood. I tried sending getting some sawdust using 15-second Carpenter’s glue but find that the glue dries to a darker colour and much sanding is necessary bringing down a layer of the wood. Could you please do a article on the process. And please p. M. Me ASAP I’m working on a beautiful log home. And a article on how to fill holes on Cedar with the various colours shades of pink purple tan and white all in the beauty of cedar. How to fill holes and foot paint to possibly use to try to match the green and how to seal this? All the above is using Clear Stain. Glacier satin Clear Stain

  • I used to think CA glue sensitivity/allergy is nonsense. But after developing my own CA glue sensitivity i know it is not a myth. if i catch one whiff, I will have cold like symptoms within 2 days for a day or more. Very sore nose and sneezing. take care everybody. Maybe 10 years ago I made a crazy mistake and used CA glue as a grain sealer/filler on a whole guitar body. Since then, i have this CA glue allergy/sensitivity. Great article, so much information, thanks.

  • Very informative and lively presentation! Can you please advise how to fix a mistake using eopxy resin in various depth cracks in cedar? I had high hopes; it looked great until it settled. I let it sit for over 2 weeks and when I started sanding/vacuuming the sawdust, drops of liquid resin emerged and the sandpaper scratched the resin so it now looks cloudy. Any advice?

  • My husband just put in a butcher block countertop and splintered some of the edges where my sink went in. He filled in the splintered areas, some were fairly deep, with wood filler and applied mineral oil. It looks like several of the pieces are trying to lift. I am at a loss on what I need to do as I am afraid of any areas getting wet and ruining my new countertop. Any suggestions on what I need to do. Thanks Daphna

  • Question: I recently bought a 108 year old historic house with lots of wood panel doors that have veneer panel insets back to back. Many of these have severe cracks in them up to 1/4″ wide. I assume this is from either lack of keeping the wood hydrated, or just humidity causing it to be moist and then drying out. Regardless, I need to fix them. I guess I can use a syringe to glue the veneers back down flat, but what would I use to fill and color the cracks?

  • This was a really good article, I would love to see a article on making a mould – my next project involves refinishing a Victorian 10 ft mahogany dining table. The previous owner’s dogs chewed a small piece off of the scalloped edge so I think I will have to fill a mould with epoxy resin and attach it to the edge (somehow). I’m okay on the finishing but I think it will be tough for the mould piece to stay attached… do you ever use dowels?

  • Why would you just slather on that CA glue all over the surface around the crack? Use a fine tip or even a syringe and get it in the crack without any spill over. Also, people always knock bondo but from my experience it works amazing in certain repair situations like fixing a rotted casement window sash. I have repairs 10-15 years old now that are still perfect. The bottom 2.5 inches of my front entry door is 90% bondo and you’d never know it. Yeah, ill buy a new door eventually, if it ever fails.

  • Hi. Thanks for making this very informative article! I would love some advice from you just to make sure that I do not mess up my project… I have been refinishing my kitchen cabinet doors- they have solid maple stiles/rails with a plywood maple veneered central panel. I just discovered a big gouge in the back side of the kitchen cabinet door- this gouge is under the top rail and runs horizontally about 6 inches or so. These kitchen cabinet doors were never stained so I had to strip off the chipping poly with a chemical stripper, sand the doors (both steps done!) and have to now apply the poly top coat. I will be using the Arm R Seal (Satin) top coat (oil based poly). How do you suggest i fill in that gouge? Wish i could upload a pic here. Thanks.

  • Hope you can help. I have a Bubinga wood staircase that I need filling the little holes/gouges in many places. Going with Pure tung oil finish (planning 5 coats sanding in between). Looking for that clear look so I get the rich grains from the Bubinga wood. What filler do you recommend that will match the deep brown/red tones of the Bubinga wood?

  • Thank you so much for all of your content, especially this article. I am new to doing wood repairs. I recently purchased a wood boat and I want to do as much work as possible. I am working on the transom and I have a few bugs to replace… I am wondering if you feel this product will work on wood that can potentially shift around… Thank you so much in advance

  • I love this article. I am doing a hardwood floor. Total sanding down old clear coat finish and applying new clear coat water se finish. I am considering the saw dust and wood glue method to fill gaps that are more than an 1/8″. Should I be concerned with how those treated areas will look after applying a water base poly clear coat I is?

  • I had to rewind least 3x. I laughed so hard. Cause we all do this. We all practice an make so many awkward gestures. But honestly keep them pleaseee. Lol. You are a flawed man. Haha. You are a NORMAL MAN. DONT REDO THESE NO MO. You ARE WAISTING TIME. AN NI ONE LIKE PERFECT. I’m sure your wife just loves You for You. An prob laughs at You too.

  • Not sure you’ll see this since the article is a few months old, but I have a coffee table that I bought from someone who had painted it already. The paint is now peeling off so I want to try my hand at refurbishing. The table has two large cutout designs in it, which resulted in gaps that catch all the crumbs and crap from three kids. I’m wondering if the glue option would work best for this after sanding, if I plan to repaint anyway. Does that make sense? Any thoughts or advice? Thank you! Helpful, informative article!

  • Hey Caleb I have a large hole about 2″ deep an 2″ height that runs about 10″ long on the bottom of 3 old outdoor wood widow frame that will be covered with a piece of trim after filled What would you use to fill this? I was ready to use wood glue and sawdust mix tell I saw your article Could you please advise what you would do ???

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