top of page

Dealing with Bald-Faced Hornets:

Updated: Nov 17

Bald-faced hornets (Dolichovespula maculata) often strike fear with their notorious reputation and painful sting. Despite this, they play a vital role in our ecosystem that is too often overlooked. Their striking black and white appearance, complex social structures, and unique behaviors set them apart from other wasps and hornets. Let’s explore the fascinating world of bald-faced hornets to better appreciate these misunderstood creatures.


Appearance


Bald-faced hornets are instantly recognizable due to their unique coloring. Their predominantly black bodies boast striking white markings on their face, thorax, and abdomen.


Adult bald-faced hornets typically measure between 0.5 and 0.75 inches (1.3 to 2 cm) in length, making them larger than many common wasps. This bold coloration not only serves as a warning to potential threats but also leads many to misidentify them as true hornets. For example, while many people may mistakenly refer to them as yellow jackets, these hornets have more pronounced features and markings.






Habitat


Native to North America, bald-faced hornets thrive in diverse environments, including wooded areas, gardens, and open fields.


One striking feature of their habitat is their intricate nests, made from a paper-like material created by mixing chewed wood fibers with saliva. These nests can reach significant sizes, sometimes up to 3 feet (about 1 meter) in diameter, and are often suspended from tree branches, shrubs, or eaves of buildings. An average nest can house anywhere from 100 to 400 individuals, creating a lively community of these stinging insects.


Social Structure


Bald-faced hornets display a complex social structure similar to that of other social wasps.


The lifecycle of a colony begins in the spring when a solitary queen emerges from hibernation to start her nest. She lays up to 20 eggs at a time, which soon develop into worker hornets. These workers take on crucial tasks such as foraging, defending the nest, and caring for the larvae. As summer progresses, the colony can swell to several hundred individuals.


By late summer, new queens and male hornets are produced. As autumn approaches, the original colony typically dies off, with only the newly mated queens surviving the winter in a hibernation state. Understanding this seasonal cycle provides valuable insights into their behavior and interactions throughout the year.


Behavior


One of the most interesting behaviors of bald-faced hornets is their fierce defense of their nests.


These wasps are known to be especially aggressive when they perceive intruders near their territory. They can sting numerous times, and unlike honeybees, they do not lose their stingers after an attack. With the ability to sting multiple times, they defend their nests with great tenacity. For some, the sting can lead to allergic reactions, with symptoms ranging from pain and swelling to more serious responses.


Diet


In terms of diet, bald-faced hornets have intriguing preferences.


Adult hornets primarily consume nectar and other sugary substances, making them important pollinators. Research suggests they are responsible for pollinating over 25 plant species, enhancing the biodiversity of their ecosystems. The larvae, in contrast, are fed a protein-rich diet consisting of chewed insects like caterpillars or flies, which supports their growth into adult wasps. This dual diet not only benefits the colony but also contributes to managing insect populations in the surrounding area.


Control and Interaction with Humans


While bald-faced hornets are beneficial for controlling insect populations, their nesting habits can lead to uncomfortable encounters with humans.


When their nests are situated near homes or commonly visited outdoor areas, action may be required. However, nest removal should be approached wisely. It is best performed by professionals equipped with protective gear to avoid stings.


Appreciating Bald-Faced Hornets


Bald-faced hornets, with their eye-catching appearance and intricate behaviors, deserve more respect than their fearsome reputation seems to allow.


As valuable members of the ecosystem, they help maintain insect populations and aid in pollination. By understanding their social structures, nesting habits, and dietary needs, we can transform our perspective from viewing them merely as pests to appreciating them as crucial players in nature's web.


So, the next time you observe a bald-faced hornet, keep in mind that behind their aggressive facade lies a captivating social insect that contributes significantly to the health of its environment. Watching these insects from a safe distance can provide delightful insights into their complex lives, highlighting their vital role in our ecosystems.


Bald-faced hornets can pose a serious threat to homeowners, especially when they build nests near living areas. These insects are recognized for their aggressive nature and won't hesitate to defend their nests if they feel threatened. Attempting to remove a hornet nest can be a dangerous undertaking, which is why it's crucial to get help from a licensed pest control expert when dealing with a bald-faced hornet nest on your property.


Insecticide Application


Insecticide application is a common strategy for managing bald-faced hornets. Ellington Family Pest uses specialized products that are specifically formulated for stinging insects. These insecticides can be applied in various forms such as dust, foam, or spray.


Typically, an exterminator will apply the insecticide directly to the nest, ensuring every part is thoroughly covered. Time matters here; professionals often carry out this task during the evening or early morning when the hornets are less active. This timing can significantly decrease the likelihood of provoking the hornets.


Dust Insecticide


Sometimes, pest control professionals prefer to use dust insecticide. This method involves applying a fine powder into the nest, which sticks to the hornets and is transported back to their colony. Research shows that dust insecticides can be particularly effective, as they ensure that the treatment reaches every corner of the nest.


This method is especially beneficial for nests located in hard-to-reach areas, minimizing direct interaction with the hornets.


Nest Removal


Once the hornet colony has been successfully treated, the next crucial step is nest removal. This is vital in preventing any remaining hornets from returning and establishing a new home.


Removing the nest also reduces the chances of future infestations. Studies have indicated that properties with old nests are more likely to attract new hornets, as they may see them as a suitable place for building their colonies.


Preventive Measures


After addressing the hornet situation, it is important to implement preventive measures to avoid recurrence. Pest control professionals will often provide guidance on sealing potential entry points around your home and eliminating factors that attract hornets, such as food sources or shelter.


Simple actions like covering outdoor food, cleaning trash cans, and ensuring garbage bins are sealed can drastically reduce the risk of future infestations. According to a survey, addressing these factors can reduce the likelihood of hornet encounters by nearly 70%.


The Risks of DIY Removal


Though it may be tempting to tackle a bald-faced hornet nest yourself, the risks involved are significant. These hornets are highly territorial and can turn aggressive if they feel threatened.


Taking on a DIY approach can lead to multiple stings, posing a threat not only to you but also to anyone nearby. Professional exterminators have the training, experience, and equipment to handle such situations with a level of safety that an untrained individual cannot.


Final Thoughts


Dealing with bald-faced hornets should not be taken lightly. Their aggressive nature and the health risks associated with their stings make it essential to seek professional help for safe nest removal.


From the initial assessment to treatment and preventive measures, a licensed pest control exterminator is equipped to manage the threats posed by these insects. Prioritizing safety is crucial; if you discover a bald-faced hornet nest on your property, don’t hesitate to call a professional.


Taking action now can prevent future harm, highlighting the importance of addressing bald-faced hornets with caution and respect.





bottom of page