Pest Control Calendar


On warm days in the winter, any of the hibernating bugs mentioned in October may emerge in small numbers in structures.  Squirrels mating and nesting begins, often chew into attics in January.


Late January through February is when we see the first termite swarms, usually in large commercial buildings.  Insects hibernating in structures begin to appear on warm days.


Termite swarming through early May in homes and buildings.  Many other insects emerge and become active as the weather warms.  Ants are notable.


Clover mites active and enter buildings through May-especially during dry periods. A variety of insects and especially stinging insects noted at flowering plants that get attention and control requests.  Treatment not needed until nests are constructed.  Snakes out of hibernation and most likely to be noted moving about.


Natural colonies of termites swarm from logs and stumps in the woods and yards in late May and early June.  Carpenter bees most active and drilling.  Ground bees active until early June then disappear for a year.  Several species of ants swarm from mid-May through June.


Bird mites emerge indoors from wall void/vent nests of sparrows and starlings.  June bugs and Japanese beetle adults appear by the end of the month.  Pennsylvania wood roaches come to lights of homes and may get inside but do not reproduce indoors.  Earwigs gather in large numbers in protected wood cracks & crevices.


Yellow jacket nests begin to be discovered and foraging at trash cans begins by the end of the month.  If fleas are going to be a problem in a home they usually appear in Jul or Aug.  Millipedes get into homes and buildings when very dry or very wet.


Cicada killers burrow in turf until early September, and then disappear for a year


Crickets can be notable in large numbers some years in the suburbs.  Snake eggs hatching or babies being born are encountered by homeowners.  Some species of ants and one species of termite swarm in the Fall.  The termites are quite rare in Maryland.


Late October is when the ladybird beetles enter structures   Paper wasps, Elm leaf beetles, boxelder bugs, cluster flies, arboreal stinkbugs are locally problematic by hibernating in homes and buildings.  White or light colored buildings in open areas are most attractive.


The structural “hibernators” listed in Oct often continue to enter well into Nov if the weather is warm.  Mice often enter structures in Nov as the seeds disappear in the fields and the weather turns cold.


Flocks of “blackbirds” roost in trees and protected areas of large buildings until March.

If you find your home has been invaded by pests or rodents, contact Capitol Pest today for a free inspection.