Nature’s Spider Repellants: Horse Chestnuts

It’s autumn and with the crisp, fresh air and trick-or-treaters comes the annual invasion of spiders into our homes.

The link between indoor insecticides and blood cancers in children reported by the Harvard School of Public Health in 2015  should be of concern to us all.  of

I understand that spiders are an extremely beneficial insect, but if I’m footing the bills I want to have some say over roommates. And since infancy I’ve had a major aversion to spiders.

Now, there is always the catch-and-release approach, or the tissue-to-toilet disposal method, but there is a way to vastly diminish the number of spiders in our homes without either chemicals or confrontation.

Simply place a few Horse Chestnuts at the foot of door jams on doors leading outside and on windowsills and you should see far fewer, if any spiders. Be sure to replace them each autumn.

The good news is that if you know someone who has a Horse Chestnut tree, they’ll likely welcome you to take all you want. They present challenges.

The outer shell usually opens and releases the chestnut shortly after it falls to the ground and then quickly breaks down. But until then they are spiky and a bit dangerous for children and pets galloping around the yard..

The chestnuts themselves are very slippery – especially when wet – and present their own potential hazards on a busy lawn or walkway.

Don’t get me wrong. The trees are worth it. They are spectacular to look at and the spikes of scented blossoms in May are dizzyingly lovely.

A friend’s sixth grader has to come up with something he can make and sell each year at his school’s Christmas craft fair. In an effort to get him to consider selling Horse Chestnuts I picked a sack full.

Then I scrounged around the house for materials to create this display.








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