Unusual Winter Weather Will Impact Spring and Summer Pest Populations

The National Pest Management Association reveals spring and summer pest forecasts with its Bug Barometer


FAIRFAX Va. (March 29, 2016)The National Pest Management Association (NPMA) today released its bi-annual Bug Barometer, forecasting what to expect from pest populations in their respective regions across the U.S. this spring and summer. From an exceptionally warm December on the East Coast to unusual snowstorms on the West Coast, and everything in between, NPMA’s Bug Barometer breaks down how the wild winter climate ultimately generated early pest activity for the majority of the country.

“The Bug Barometer is developed by our entomologists who examine recent weather reports across the U.S. and analyze precipitation patterns to determine the effect on the pest pressure index. Inconsistent weather patterns can alter when, and even where, these pests become active, and our barometer will help people be more prepared and can safeguard their homes,” said Cindy Mannes, vice president of public affairs for the NPMA. “Knowing what to expect for the season is especially important as some springtime pests, such as ticks and mosquitoes can have a direct impact on our health, especially with the threat of Lyme disease and Zika virus becoming a heightened concern in recent months. And other pests, including ants and termites can cause damage to our homes.” 

According to the NPMA’s Bug Barometer, here’s the expected pest forecast for each region of the U.S.:

Northeast: Starting off with an atypically dry December, the Northeast closed out the month with much wetter and warmer weather than usual with little snowfall. These conditions gave way to earlier pest activity, creating expectations that ants, ticks and brown marmorated stink bugs will arrive with the early thaw. A rainy spring may also bring more mosquitoes.

Southeast: A rainier and even warmer winter than usual created strong breeding grounds for mosquitoes that will continue to thrive. Termite swarms and ants will emerge in their fullest force during the hottest periods of spring and summer.

Midwest: Wetter than average weather combined with a record-breaking warm December may jump-start ant and tick activity. This is in addition to the premature mosquito population increase already occurring.

Southwest: This region experienced an exceptionally warm December and especially wet conditions with the exception of a dry Southern Texas. A cooler, rainier spring may delay termite swarms, drive up mosquito populations, and lead ants indoors. A drier summer could yield an increase in tick populations. 

Northwest & West Coast: Heavier rainfall, flooding and snowfall swept this portion of the country during the winter months. With slightly rainier than normal weather conditions predicted for the upcoming seasons, larger mosquito populations are anticipated and ants will move indoors. 


For more information on NPMA’s Bug Barometer or to learn more about protecting against common household pests, visit PestWorld.org.


The NPMA, a non-profit organization with more than 7,000 members, was established in 1933 to support the pest management industry's commitment to the protection of public health, food and property. For more information, visit PestWorld.org.