What Is The Arizona Bark Scorpion?


The Arizona bark scorpion is the most venomous scorpion in the United States. Known for its excellent climbing abilities, these scorpions are found roaming the walls and ceilings of homes and cinderblock walls at night looking for food or seeking shelter in cooler locations.


All scorpions are venomous, but few more dangerous to humans than the Arizona bark scorpion.  The Arizona bark scorpion produces a venom that acts as a neurotoxin and causes widespread damage to the body, including conversions, irregular heartbeat, and respiratory paralysis. In many cases there is little or no pain at the site of the staying, and for symptoms do not occur for hours later. Death can also result in as little as 3 to 4 hours. Venom is exceedingly toxic and especially dangerous for children ages three or four and elderly individuals, also those that have auto immune diseases, though, some scorpions are capable of killing even a healthy adult. Further, scorpions sting quickly and repeatedly when disturbed.


With proper medical care, including administration of an anti-venom, stings may not be life-threatening. However, if you hospitals outside the range of dangerous scorpions actually stock and tie venom; and the anti-venom itself may cause serious – sometimes fatal – allergic reactions if it is best for her serum, which many people are allergic. The effectiveness of first aid is uncertain.


The Arizona Bark Scorpion is an excellent climber, including climbing vertical surfaces. This is a homeowners nightmare as scorpions are often found inside homes, on windowsills, and ceilings at night. Scorpions have four pairs of walking legs, which are similar in structure. The leg is broken up into multiple parts. There are many spines and enlarged bristles at the end of the scorpion’s leg that help the scorpion hang onto concrete, bark, cinder, and plaster.


The Arizona bark scorpion can be as large as 4 inches long, with a slender body and slender pincers. These scorpions tend to be pale and straw-yellow colored. In the dark, the Arizona Bark Scorpion fluoresce under ultraviolet light. The blue-green glow comes from a substance found in the hyaline layer, a very thin but super tough coating in a part of the scorpion’s exoskeleton called the cuticle.


How Do You Scorpion Proof Your Home?


Call Scorpion Repel!  Scorpion Repel is a proven way to keep the Arizona bark scorpions out of homes. Vertical base surface areas around the home are treated with Scorpion Repel - a specially formulated application that prevents scorpions from climbing vertically up into a home or structure. This non-toxic application is applied to the base of a home, including door thresholds, steps or other parts of a home, which makes contact with the ground. The application is applied by an HVLP sprayer (air compressor), which is strong enough to carry the application. Scorpions are unable to hold on or maintain a grip to the application. The application has been tested extensively. When scorpions attempt to crawl up the treated areas, once they experience difficulty, the scorpions simply move on or give up. The application has a large life span. All the homeowner must do is keep the surface area relatively clean.


When Do Scorpions Enter Your Home?


Scorpions will start to reappear in the spring and when temperatures reach 65 degrees or higher.  As the temperature rises, scorpions seek cooler areas. This is when you will find them in your homes.  The monsoon season will also drive scorpions into your home when rain starts to flood their typical hiding spots.


What Does An Adult Do If They Are Stung?


As long as you are not allergic to scorpion venom, the sting will be painful throughout your body.  


Is Pesticide Effective Against Scorpions?


Dawn Gouge, an entomologist with the University of Arizona, has said that “unless you are out directly spraying [scorpions], a lot of the pesticide applications just don’t have very much effect.  [Scorpions are] really tough and they will avoid chemical barriers by walking around them or tiptoeing over them.”


What Do You Do If A Child Is Stung?


A scorpion’s venom is exceedingly toxic and especially dangerous for children.  If a child is stung, seek immediate medical care.  If the child is especially young, or under 70 pounds, take your child to the emergency room.


Most scorpion stings cause intense pain, and other side effects, including, but not limited to difficulty breathing, drooling, sweating, vomiting, hypertension, irregular heart beat, inconsolable crying and twitching/jerking muscles, head, neck and eyes.  You can also call the Poison Help line at 1-800-222-1222.


How Long to Scorpions Live?


Unlike most insects, Scorpions have a large life span of 2 - 6 years.    


Are Pesticides Safe?


In report by CNN, researchers compared pesticide exposure between children who developed leukemia or lymphoma and those who did not. They concluded that children who have been exposed to pesticides indoors are 47% more likely to have leukemia and 43% more likely to have lymphoma. Researchers also found that pesticides contribute to other types of cancer. Children ages 12 or under appear to be the most vulnerable to cancer causing effects of pesticides. https://www-m.cnn.com/2015/09/14/health/pesticide-exposure-childhood-cancer/index.html


In another study, pest control workers who worked with a variety of pesticide chemicals, were found to have significant mortality rates due to cancer.  https://www.ncbi.nlm.nih.gov/m/pubmed/15846500/


Is There Anti-Venom For Scorpion Stings?


In 2010, the Food and Drug Administration approved “Anascorp,” the first treatment for scorpion stings.  This anti-venom is made out of horse plasma, and had been developed and used in Mexico. Studies have shown that scorpion sting symptoms disappear within a few hours after administration.  It must be noted that Anascorp may cause early or delayed allergic reactions in people sensitive to horse proteins. The most common side effects of Anascorp were vomiting, fever, rash, nausea, itchiness, headache, runny nose, and muscle pain.


How Many People Are Stung Each Year?

More than 11,000 people are stung each year in Arizona, and more than 17,000 nationwide.


Is Anascorp Expensive?


In Arizona, it is common for Anascop (an anti-venom) to cost as much as  $12,000.00. Some patients require multiple doses, so they may be paying as much as $50,000.