The Naked Scientists

The Naked Scientists Forum

Author Topic: Are there any plants that can repel Black Widow spiders?  (Read 15050 times)

candy

  • Newbie
  • *
  • Posts: 1
    • View Profile
help! does anyone know of a plant/herb that repels black and brown widow spiders. i have several nests of these spiders outside in my garden,and i was bitten last week by one. i have a young child, and i don't want her to be bitten. i could spray a pesticide but that is only a short term soloution. i need something that will keep them away naturally.

if anyone can recommend anything i will appreciate it.

thank you
« Last Edit: 27/09/2008 22:04:56 by chris »

Evie

  • Full Member
  • ***
  • Posts: 200
  • "Back off man...I'm a Scientist."
    • View Profile
    • My Website
Re: Are there any plants that can repel Black Widow spiders?
« Reply #1 on: 22/09/2008 18:06:31 »
I couldn't find any natural plant repellant for black and brown widow spiders. One website said that you should put yellow bulbs in your outdoor lights, which will attract fewer bugs that the spiders like to prey on.

The best things to do are:

1)Teach your child about the spider so that he/she can avoid it.

2)Keep debris, etc. away from the house.

3)Use a power washer to spray away webs around the outside of the house.

Don_1

  • Neilep Level Member
  • ******
  • Posts: 6614
  • A stupid comment for every occasion.
    • View Profile
    • Knight Light Haulage
Re: Are there any plants that can repel Black Widow spiders?
« Reply #2 on: 23/09/2008 12:55:11 »
As Evie said, keep debris (rubbish, dead leaves etc.) clear so the spiders have as few hidding places as possible.

There are some old wives tales that some people say do work. I have never tried them, so I can't comment. They are supposed to keep spiders out of the house, so even if they do work, you might find their effect reduced used outside.

1) Conkers (Fruit of the Horse Chestnut) Spiders are supposed to dislike the odour, but I think you need a lot of them to make a barrier which they will not cross.
2) Osage orange (AKA mock orange, wild orange, hedge-apple, horse-apple, hedge ball) Cut into sections and use as with conkers.
3) Lemon juice. Even household cleaners containing lemon can be diluted and sprayed.
4) Strong essential oils (Do the same as above)
5) Pipe or chewing tobacco, put a 200gram pack in 4 ltrs of boiling water and allow to cool. Strain the liquid and mix at a ratio of 2 parts to one with lemon washing liquid to the amount required and spray. The remainder of the tobacco liquid can be saved until next required.

If the conkers or lemon work, perhaps you should invest in a few trees, trouble is, come the autumn, they will make a lot of leaf debris which will give spiders nice hidey holes!

So far as I am aware, there is no plant which deters spiders. Their natural enemies are frogs, toads, lizards, birds and some wasps.

There was a report some years ago of a man & his wife staying in a Sth American hotel. Upon waking in the morning he saw a large Tarantula in the room. He took out his hand gun and shot at the spider. He missed. The spider ran off scott free. The bullet ricochet'ed off the concrete floor, then the wall, then the ceiling, then the opposite wall and lodged in the mans back. He died from this wound.

blakestyger

  • Guest
Re: Are there any plants that can repel Black Widow spiders?
« Reply #3 on: 25/09/2008 17:40:15 »
I wish we had black widows in our garden; they're not found in the UK.

We do have an orb spider that lowers itself down in front of the kitchen window sometimes and its abdomen is as large as a child's marble.  :0

 

SMF 2.0 | SMF © 2011, Simple Machines