Weather Impact on Carpenter Ants

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The anticipation of summer weather and the exciting activities that accompany it are something that most people eagerly await. As a new season approaches, it can bring several changes in weather patterns. Homeowners often witness these effects firsthand, especially when it comes to the behavior of pests. This year, the combination of drought, sun, rain, humidity, and weather fluctuations has particularly affected carpenter ants, causing significant challenges for homeowners and pest professionals alike. In this blog post, we will explore how these weather conditions have influenced the life cycle, nesting habits, foraging behavior, and control methods of carpenter ants, offering a homeowner’s guide to carpenter ants.

Life Cycle of Carpenter Ants:

Carpenter ants go through complete metamorphosis, progressing from eggs to larvae, pupae, and finally, adult ants. The weather conditions during each stage play a crucial role in their development and survival. Rainfall and humidity can impact the moisture content of the environment, affecting the survival rate of eggs and larvae. Extreme heat or prolonged sun exposure can cause excessive evaporation of the environment, leading to dehydration of ants and their eggs, larvae, and pupae, hindering their growth. This altered development can impact the overall population of carpenter ants in each area.

Nesting Habits and Shelter

Carpenter ants are known for their ability to excavate wood to create nesting galleries. The recent weather fluctuations have affected their nesting habits and shelter choices. Increased rainfall and humidity can make wood structures more susceptible to moisture, creating favorable conditions for carpenter ants to establish or expand their colonies. On the other hand, intense sunlight and extreme heat may cause wood to dry out, leading carpenter ants to seek alternative nesting sites, that are cooler and sheltered. This tendency brings them closer to homes, making it more likely for people to notice ants inside their structures.

Foraging Behavior and Food Sources

Carpenter ants are omnivorous creatures, feeding on a variety of food sources, including insects, honeydew from aphids, and sugary substances. Weather fluctuations can significantly impact their foraging behavior and food sources. Heavy rain can disrupt their normal foraging routes, leading them to explore new areas in search of food. Likewise, fluctuations in temperature and humidity can affect the availability of food sources, altering the behavior and movements of carpenter ants. Homeowners should be vigilant during these periods, as carpenter ants may venture indoors in search of sustenance. Proper sanitation practices, sealing entry points, and eliminating potential food sources can help prevent ant infestations.

Carpenter Ant Control Methods

Given the challenges posed by weather fluctuations, adaptability, and resiliency of carpenter ants, it is important to prevent carpenter ants from the onset. By combining preventive measures, such as maintaining proper moisture control, sealing cracks and crevices, and removing potential nesting sites, homeowners can significantly reduce the likelihood of ant infestations. Ensure safe and effective control by contacting a professional pest management company that has the experience and knowledge to address carpenter ant issues.


The weather fluctuations experienced this year, encompassing factors such as rain, humidity, sun exposure, and temperature variations, have had a notable impact on carpenter ants and their interactions with our homes. These shifts in weather patterns have led to unique challenges and considerations for homeowners in dealing with carpenter ant infestations. Understanding the effects of these weather conditions on the life cycle, nesting habits, foraging behavior, and control methods of carpenter ants allows homeowners to understand why ants may be present. If you're dealing with ants in your home, let the team at Thomas Pest Services protect your home from carpenter ants.  

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