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When Beneficial Insects Become Pests

by Stephanie Suesan Smith on May 25, 2011

If you have been reading this blog long, you know I love bugs.  I take pictures of them, encourage them, and let them eat the vegetation around me because that is what bugs do.  However, I draw the line at them coming in the house.

Now, I am not talking about things like cockroaches and fleas, which have to die no matter where they are.  I am talking about the beneficial insects that eat annoying insects, pollinate plants, and just look pretty.  At least, they are beneficial when they are outside.  My Dad says the difference between a beneficial insect and a bug is that a beneficial insect is outside and a bug is inside.  Bugs must die.

The trick to killing bugs, though, is doing so without killing yourself.  First, seal the cracks around your windows, doors, and other places things can get in.  Get your house sealed as tight as a drum.  That prevents new insects from coming in.

Second, make sure the screens on your windows and doors are in good repair.  A small hole can let in a legion of bugs.  If you do not have screens, keep the windows closed until you do.  The same goes for the door — no screen means do not let it stand open.

Insects are most active at dawn and dusk.  Porch lights attract them and sometimes you can open the door and it will be covered with bugs.  That is one reason to have a screen door.  However, be prepared for a few stragglers to get in.

Now that you have sealed up your house, it is very possible to wait out the bugs and let them die of old age.  Since no more will be entering, the problem may go away.  If not, you will have to resort to pesticides.

If it kills a bug, it is classified as a pesticide.  It may be organic or synthetic, but it is still a pesticide.  If you chose to do it yourself, make sure you read the label directions and follow them exactly.  If your bug isn’t listed on the label, you cannot use that pesticide to kill it.  Try reading the labels at the store until you find one with the correct bug on it.

The other option is to call in a pest control service.  They will identify the bugs, spray the appropriate pesticide, and usually garuntee the results for a specific length of time.  It does cost more, howver.

Remember, seal the house first, then disinvite the guests.  Otherwise, more will just show up.  And be careful — you don’t want to eliminate yourselves along with the bugs.

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{ 5 comments… read them below or add one }

Nisha May 25, 2011 at 10:58 pm

I hate bugs of any kind. But can they be isolated completely ?

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Stephanie Suesan Smith May 26, 2011 at 6:03 am

You can seal your house and greatly reduce the number of bugs that get in. You will never keep all of them out. Remember that most bugs are beneficial or neutral and it is only a few bad apples that cause us trouble.

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Jerry Clifford from minneapolis mls August 20, 2011 at 12:32 pm

Thanks for this tip. I’m making my home free of pest and it’s good to know that killing bugs can be done this way. I was planning to hire a pest control service but i’ll try this first and if it fails then that’s the time i’ll call for a pest control service.

Reply

Stephanie Suesan Smith August 21, 2011 at 8:24 am

Might as well try the free stuff first.

Reply

Harvy September 2, 2011 at 2:48 am

The blog is very useful to me. I saw a centipede in the outskirts of my house, near the water closet. The moisture is best for breeding of centipedes.
I used the bug killing pesticide to kill this pest. Now it is ok.!
harvy@housebugs

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