It’s that time of year again when the Asian Lady Beetles are seeking a place to spend the winter. They are congregating on the sun-warmed sides of buildings and homes looking for a protected site or tiny opening to crawl inside to a warm and dry place, out of the coming cold. They overwinter as adults in a dormant state, not eating, drinking, mating or laying eggs. They are not doing any damage to the house, just using it like a bear uses a cave for the winter.  Once they are inside, some are fooled by the artificial environment we create by lighting our home during the night hours and heating when it is cold outside, to come out of their winter rest early, becoming a nuisance inside.

Their spots and coloring will vary, but they will also have the same ‘M’ mark in black on their head.

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A gathering of Asian Lady Beetles.

They are annoying to share living space with them. Keep them out of your house by keeping screens in screen doors in good repair. Caulk or seal up any cracks or crevices allowing access for them to crawl inside. Screen attic vents and fan covers to exclude lady beetles from attics and air inlets. Pesticides are not warranted for them as they are considered beneficial. Vacuum up any that do make their way into the home.

Other insects that have the same habit of trying to get enter buildings to overwinter in their adult stage are stinkbugs, boxelder bugs and leaf-footed bugs. Control measures are the same as for the lady beetles.

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Boxelder bug

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Brown Marmorated Stink Bug

 

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Leaf-footed Bug

-Carol Quish

Silverfish AKA Firebrat

Silverfish AKA Firebrat

Occasionally I find an insect inside my home and don’t worry too much about it, just figure it found its way inside in error, and politely relocate it to the out of doors. But when I found several silverfish in my seldom used extra bathroom, I knew they were an indicator something was amiss.

Silverfish live in damp or wet areas and love rotting wood. They do not like to live on the dry tile of this room. Upon further inspection of the basement just below that bathroom, we found dripping water. Oh no, the joys of home maintenance. The wood below the drain of the shower was wet and soft. Perfect conditions to house silverfish. They are also known as Firebrats in some areas of the country, are actually a different species, but are very much alike. The Silverfish’s Latin name is Lepisma saccharina.

Silverfish feed on high starch sources such as wallpaper and book-bindings and the used in them. They will eat cereal grains, paper and wood. They want a moist environment, especially moist ply wood.

Silverfish Life Cycle, http://www.amnh.org

Silverfish Life Cycle, http://www.amnh.org

Silverfish have gradual metamorphosis, starting with an egg which hatches into a nymph. Several molts take place until they reach maturity. Silverfish can live up to six years! Eggs are laid near a food source in cracks and crevices. As long as moisture is abundant, these insects will live.

Which brings me to control measures. First we had to fix the leak that caused all of the wetness. Next we have to dry out the area with fans and dehumidifying. It is a good idea to disinfect any surfaces to retard a secondary mold problem. Once area is dry, cleaning by vacuuming is recommended. Reduce any clutter around the home, especially papers and books to reduce the food sources. Seal any cracks in foundations or walls, and around pipes to keep silverfish from entering the home in the first place. Insecticides containing boric acid or pyrethroids labeled for indoor use can be used in areas where silverfish are found.

-Carol Quish