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Outdoor Pests

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Outdoor Pests

There are many outdoor pests which accidentally invade structures. Sowbugs, Pillbugs, European Earwigs, Centipedes, Millipedes and Clover Mites are some of the many pests normally found outside that can become nuisances inside too.
Sowbugs and Pillbugs are related. Both are a grayish colour, are small and rounded in shape and have a lot of little legs. Pillbugs will roll into a ball when disturbed whereas Sowbugs do not. These creatures are crustaceans and require moisture to live. They are often found outside in damp areas, in mulches and under objects. If they get into a dry area such as inside your house, they will quickly perish.

sowbug-adults Sowbug

pillbug-adults-rolled Pillbug, in its Protective Rolled Position

european-earwigsEuropean Earwigs are found hiding in many different areas. These insects have a pair of pincers at the back ends that are used for defense. Very large numbers of them can sometimes be found together in favourable hiding spots.. They originated in Europe and are now a permanent visitor.

Centipedes and Millipedes are worm-like creatures with lots and lots of legs. Millipedes have more legs than Centipedes. They are commonly found in gardens and landscapes where millipedes feed on plants and decaying materials and centipedes feed on insects.

Clover Mites live on vegetation. They become a problem when they enter buildings while searching for a new places to live, and end up on inside walls. They are very small reddish specks. If you rub your hand across the wall you get reddish blood coloured smears.

At certain times of the year there may be large numbers of these pests. They get inside because the outside of the house forms a natural barrier to their movement. They congregate at the outside walls and search for openings to pass through or to hide in. These openings often lead right into the house. They normally find conditions inside your house to be too dry and rapidly perish.


Do not allow any trees, vines, shrubs or other plant material to touch the house. Maintain the soil level outside so that at least 15 cm (6 inches) of bare foundation shows above ground.

Keep moisture levels in crawl spaces low by using vapour barriers and lots of ventilation.

Maintain a strip of ground at least 1 to 2 feet wide around the outside perimeter of the house where there is no tall grass, firewood or other stored materials.

Do not use bark mulches next to buildings. Gravel mulches, short grass or pavement are acceptable materials.

To stop pests from entering buildings, caulk and weather-strip around doors, windows, pipe entries and wire entries. Install a slippery EnvirosafeTM Teflon® barrier on the foundation to prevent these pests from climbing the foundation.


It is important to properly identify the pest, find out about where it normally lives, and determine why it is a problem (for example, dry weather may be forcing pests to search for a new place to live).

Indoor and outdoor spraying may provide temporary relief. For long-term control, preventive measures must be used.

Our company can provide consultation services, perform the preventive measures for you and do the treatments for these types of pests.

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