I’d love to see the photo. We’d like to keep the trees since they’re really established and provide good shade. The best defense against palo verde beetle damage is taking care of your trees! Lots of comments , good ones. Most borer beetles eat to their heart’s content without causing any real damage so the tree was probably on its last legs anyway. This is a great blog. Also known as Palo Verde root borers and grubs (in reference to larvae), Palo Verde beetles are aptly-named creatures that feed on the roots of distressed or dying Mexican Palo Verde trees as well as shrubs or citrus trees. They are only native to the southwest, but there are similar and fairly closely related longhorn beetles in your part of the country. A better strategy is to focus on improving the health of the tree to help it outgrow the damage by providing adequate water and fertilizer. We do have some young bamboo recently planted in pots. They also make a high pitched squeal when you pick them up. In the 5 years of living here I’ve only encountered 3. I am thankful your bog is here and still educating newbies 3 years later. They are often attracted to lights, so she might fly off in search of better lights elsewhere. These things are eating the tree !! Sorry it scared your wife (my husband is right there with her, I assure you! School doesn’t start for another few weeks. Plants are at the base of food webs and any change in a plant community can have an impact on all organisms that feed higher up the food web. For a more reliable solution to a Palo Verde beetle infestation in Arizona, you can turn to regular pest control treatments for the exterior of your building. hmmm… Any advice? Can you offer any suggestions? Once they mate, the female crawls underground to lay her eggs and the adults die. And is it weird that I think you’re lucky to have 4 in your yard? They’ve got all kinds of intimidating looking spines and beautiful eyes – gorgeous beetles if you give them a chance! Its long horns .. antenna are thinner and the overall bodies are stumpier. Adult palo verde beetles don’t feed at all and rely on nutrient reserves they ingested as larvae to fuel their adult activities. After searching with the lights on, I thought I’d find something I might have seen before… During the week that followed, I found a few more, having drowned in my pool. Taxonomy, or How the Biological World is Organized, Scientific Nomenclature, or How Biological Organisms Are Named, a post about how much I love these beetles, a male and a female palo verde beetle struggling with each other, Giant Black Beetle… Palo Verde Beetles « Words-n-Motion, http://onecourtier.wordpress.com/2014/07/05/the-walk-of-the-longhorn/, North Carolina Museum of Natural Sciences Blog. It’s much less coordinated than the palmetto bugs, and they swerve all over everywhere when they fly. Learn about the Palo Verde beetle in Arizona and how Burns can help with pest control and prevention tips. Q: I’m pretty sure my palo verde tree is suffering from major beetle damage. That’s more interest than a lot of people have in them! Or is it not enough of a “big deal”? If you could send them to me at thedragonflywoman at outlook dot com, I can take a look and see what you’ve got! Cheers. My grandson found a dead Palo Verde Beetle in our yard in Maricopa, AZ, and thought it was cool. Will be a different species in Turkey, but there are a lot of similar species! I need your opinion regarding this beetle pictured in Romania: http://onecourtier.wordpress.com/2014/07/05/the-walk-of-the-longhorn/ . Seeing lots of these fellows while on holiday in southern turkey, spending a lot of time rescuing them from the swimming pool ! Time for the palo verde beetles to descend on Tucson and fill the night sky with giant beetles flying around drunkenly looking for mates. I couldn’t believe it when two days later I checked on it and it had chewed/bored a hole through the bottom outer edge of the cup. Hopefully, Palo Verde beetles don’t turn into a pest problem or full-blown infestation at your Arizona home or business. Palo Verde bettles attack tree roots, causing considerable underground damage that can affect the entire tree. They noticed holes around the base of a nearby Palo Verde and commented on them. Do they “hiss” at all? For some reason, they found a hole in the roof over my AC closet, and in the space of about 15 minutes 10-15 of them (at last count!) One friend said it was a humming bird and one said a bat, I told them I knew it had to be one of the same bug I found on the porch and sure enough I found your page and confirmed. Placing pesticides in the exit holes does little good as the beetle is already gone. Today I am making good on that promise! I found one on my front porch, I ran in to get the camera and actually did get some decent shots. I kept the cup, and it shows the miniscule chew marks where it tried in various place in the cup before it settled in to finish it’s way through. They’re large, dark brown nocturnal beetles, 3 – 3.5 inches long. That was a few days ago and it seems no worse for wear. Or maybe they were just following the cool air? Great write-up and pictures! I have even hand fed one with a piece of apple, they can be very tame and trusting. Cool! Should I make the local extension office aware that there could be a new bug in the state? My daughter found one of these big guys wandering around in the driveway last night. Orthosoma brunneum would be a likely possibility as it looks very much like the palo verde beetles and is also in your part of the country. Palo verde beetles can cause some damage to trees, especially non-native ornamentals, but usually only in trees that are already having problems. That’s not to say that they won’t flail about wildly and try to bite you if you pick them up, and they can deliver a strong, painful pinch if you’re not careful. I take my entomology as a new hobby and try to learn as I go before I can enroll.. but this beetle stumps me. I know they extend into California, but I’m not sure how far north they go. They have long antennae, and spines on their thorax. I love all types of Prionids. I’m pretty certain that one of these Palo Verde Beetles in under a glass on by bathroom floor. Keeping it means a great new experience for your students, and that’s often a good thing. ), fight, mate, and lay eggs. (I’m not amused). However, I’m unfamiliar with the insects in that part of the world, so I’m not sure what to recommend instead! We lived way out in the desert a lot and learned how to survive and what native vegetation to eat, what could be used as medicine and how to fix it and soforth, and tonight my brother and I learned something new. ), but I’m glad you enjoyed it at least! The longhorn beetle group is a big one and many of them look like the palo verde beetles. — the palo verde beetle is harmless. She can’t seem to stay on her legs. I live in scottsdale and have seen a number of these beetles on the sidewalks.Saw one the other day on my porch on its back.Didnt know what kind of beetle it was,so i looked it up.Its just like the photos here! I pulled up a small tree stump in my yard here in Las Vegas and found one of those humongous larvae, put it in a giant plastic cup from a fast food joint with some of the dirt from the hole from which it came. We live in Galt Calif. Just South of Cali’s capital, Sacramento. During that month, they fly around (not very well and in the dark – there’s nothing quite like seeing one of these flying toward your head at night! The larvae, which are a huge 3" whiteish grub, live inside the roots of trees for several years before maturing into the black adult beetle. I’ve never heard of anything like it! It’s pretty pathetic! I would very much enjoy reply Thank You Take care, The f irst time we looked up and read about these Palo Verde beetles we saw a post of a person willing to purchase live Palo Verde beetles. Oh, @dragonflywoman, there’s this giant sized black one – a full 3.5 “, I’d say, that we found last night walking in the backyard, along the patio! Also known as Palo Verde root borers and grubs (in reference to larvae), Palo Verde beetles are aptly-named creatures that feed on the roots of distressed or dying Mexican Palo Verde trees as well as shrubs or citrus trees. I recommend contacting your local extension office (the master gardeners can probably help!) Verify informative. or a good arborist. They’re hilarious to watch flying around. I don’t hear them in the closet anymore, so I’m assuming they’ve died. I never saw or heard of them before so it came as quite a surprise when I was awakened in the middle of the night by a small flying chihuahua, zipping about in the dark, slamming into things and falling. That’s what I was thinking, too. Thank you. Thanks for the information. I suspect it was a close relative of the palo verde beetle! On a recent segment from 12NEWS KPNX, Burns Pest Elimination was featured to inform the public more about this bug, its lifecycle, and to what degree it’s a cause for concern. Please answer thank you. They are only alive for a short season and they are on a mission to mate. Female Palo Verde Beetles lay their eggs in the soil near trees during monsoon season. While I completely understand why people might be scared of these lumbering, giant beetles – they are VERY large after all – I can’t help but love them! It’s an old house and has mulberry trees in the front yard. I have it (Ringo) hanging in my kitchen in a large mesh butterfly habitat (which my husband sort of sighs at when he walks by – ha ha ha). Once a male finds and mates with a female, the female will burrow into the soil at the base of trees and lay her eggs about a foot down. Hopefully I’ll get to see one in person some day. Palo verde beetles get their name from the palo verde tree, a gorgeous desert tree with green bark native to the Sonoran Desert. Glad I could give you some useful information about one of my favorite beetles! I have no earthly idea how the 3+” creature got into my 2nd story condo but it’s not welcome here. The beetle holes penetrate approximately 0.4-1.57 inch into the wood and there are often many inch into the wood and there are often many entry/exit holes on an infested tree. I posted pics to the response email since I can’t include pic here , thank for your help but I do believe you may want to check the pic !!!! Change ), You are commenting using your Facebook account. Still, do you think these beetles will harm the tree? Unlike roaches, Palo Verde beetles are outdoor pests capable of … The larvae of two bruchid beetles exploit the Palo Verde seeds while the pods are developing on the tree. Wonder if they might just be at the end of their lives or are attracted to light reflecting off the water or something…. We are in the desert SW corner of the state, so quite near the Nevada border. They resemble giant cockroaches with long antennae, sharp mandibles and a spiny exoskeleton. It probably doesn’t help that they’re also nocturnal and emerge from the shadows when you least expect them. Gopher and Palo Verde Beetle Holes. I have a friend that said her babysitter found what sounds like a Palo Verde beetle in the house (children’s playroom) and it was hissing. Scared me at first. Sorry you’re having a bad experience with them! I live in Louisiana and have been trying to figure out what has been eating my tree , well your site answered it all. Hello! ( Log Out /  Thanks. The Palo Verde Root Borer is a member of the beetle family, the largest group of insects in the world. Not to mention they’ve killed two of our trees. When I filled up the holes, a beetle emerged slowly! Being an elementary school teacher, I think it is really important for children not to see all insects/bugs as “icky” so I keep a pair of purchased Madagascar Hissing Cockroaches on my desk and have bought Bess Bugs, and African Millipedes. I live in Phoenix and this week I found two inside my house!! All these scientists (I was a science grad too… give me Chemistry or Botany any day, Gee)! I’ll try and video it if I can. It’s not going to attack you or anything, so you’d just lift the vase off and let it go about its business. Just found one of these guys in my backyard, getting paddled by a neighborhood Tomcat! Hi, nice blog. My cat just carried one inside from the patio. In June and July, the larvae turn to adult beetles and exit the ground via small holes. Odd that you’re finding so many in your pool though. That’s not what I’d consider “normal” palo verde beetle behavior. I’m a little envious! These are definately in spain too I can confirm. Upon closer inspection I realized it was a HUGE (big to me and bigger than anything I’ve seen up here before -several inches long, about 3/4″ and about an inch wide if I remember right) beetle. If the tree is healthy, it should be able to withstand a few beetles. Not sure how to solve your problem though… Perhaps you can at least take comfort in the fact that they’re not around for very long each year? would you happen to know anybody that would want to purchase these interesting (Palo Verde Beetles ) LOL my husband and myself both were Bit while just sitting around with those vicious pinchers mandibles as you Call them. These are impressive. One minor thing though; emerald ash borers are in the family Buprestidae, not Cerambycidae. Because they are root borers and root borers are commonly associated with dead, dying, or unhealthy trees, palo verde beetles are often considered pests. Our backyard has about 4 wandering around right now…. The palo verde beetles only extend into Texas, so don’t make it quite as far east as you. Been in Phoenix for 2.5 years and haven’t seen one until today. They are only alive for a short season and they are on a mission to mate. And tonight we heard this weird hissing/scratching/munching sound coming from the floor board by our back door. Pingback: Giant Black Beetle… Palo Verde Beetles « Words-n-Motion. If it’s in Romania, it’s not Derobrachus hovorei as it’s only found in the southwestern US. Change ). These beetles are known for their boring activity, so much so that we commonly call the family of beetles to which it belongs the branch and twig borers and powderpost beetles. Are your kids in school now though? As proof, I leave you with this last image: Unless otherwise stated, all text, images, and video are copyright © TheDragonflyWoman.com. They also lay eggs near other trees, but that’s why they have their name. I think the palo verde beetles look rather fierce. Adults emerge in early summer, usually ahead of the monsoon, and by August they are gone. The adult emerges when the monsoons arrive and dig their way up to the surface, leaving large round holes around the base of the tree where they grew up. 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