The Insects of Spring
This article was published originally on 3/25/2016
Are flies buzzing around your lights and bonking against your windows? One of the less pleasant
signs of Spring and warming temperatures is that the insects that have been overwintering in the
attic and wall voids of homes become active and often wander into the living space delighting cats
and irritating homeowners.
Insect accidental invaders are bothersome, annoying and a nuisance, but they cannot bite or sting
and they do not attack the house structure or contents. They do not breed and reproduce indoors
or cause harm. Though this lessens need for concern, we still hate them!
Accidental invaders enter structures in late fall and "hibernate" until spring. When they become
active they come into the living space while looking for their way back outside. They are frequently
found around windows and lights because they are attracted to light. The good news is they will
not survive long. The bad news is that there may be a lot of them.
Here are the most commonly encountered
insects in homes as the weather warms in the spring:
Flies (various species). Flies in homes emerging from colder areas where they have overwintered
tend to be sluggish and will fly from windows to lights noisily banging into both. House flies (Musca
domestica), cluster flies (Pollenia rudis) and others are common. Different flies breed and
reproduce in different areas, but it is difficult to breed these flies in the home. It can be done with
accumulations of decaying organic matter, but that has a rather obvious solution, doesn't it!
Multicolored Asian lady beetles. Adults become active on warm days in the spring. They are
the same adults that oved into the home the previous fall; they do not breed in homes.
Conifer seed bug. This accidental invader does not usually occur in large numbers. It bears a
resemblance to kissing bugs (which are not found in Iowa) but these insects feed on pine seeds
and are harmless to humans.
The above is from "Horticulture and Home Pest News"
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