Ivy, Oak, and Sumac.
Poison: a substance that is capable of causing the illness or death of a living organism when introduced or absorbed.
There is a great deal of confusion about poison ivy vs. poison oak since there are two kinds of poison ivy and two kinds of poison oak
Repelling Mosquitos:
“The phenomenon that some people are more prone to mosquito bites than others is well documented. In the 1990s, chemist Ulrich Bernier, now at the U.S. Department of Agriculture's Agricultural Research Service, began looking for what he calls the "magic compounds" that attract mosquitoes. His research helped to show that mosquitoes are attracted to humans by blends of common chemicals such as carbon dioxide, released from the skin and by exhaling, and lactic acid, which is present on the skin, especially when we exercise. But none of the known attractant chemicals explained why mosquitoes preferred some people to others.”
Recognizing, removing, treating bites, and deterring them.
Did you know that spiders HATE peppermint? (So do mice.) Most people don’t! An easy way to keep spiders from invading your space is to fill a spray bottle with peppermint essential oil (which you can buy from here on Amazon) and water, and then spray it around your home. Plus, your home will smell great!! (use cotton balls with a couple of drops of peppermint oil scattered around the house for mice.)
For more info on repelling spiders using peppermint oil, check out this great article: http://www.herbsandoilsworld.com/how-to-keep-spiders-out-of-your-home-with-peppermint-oil/.
Use Vinegar
White vinegar has about five trillion uses around the house (look it up!), and repelling spiders is one of them! Repelling spiders with vinegar is much like repelling them with peppermint oil, in that you fill a spray bottle with vinegar and water, and spray all the cracks and crevices around your home.
Don’t Let Them In
A great way to keep spiders out of your home is to never let them in in the first place! Make sure the exterior of your home is free from leaves, grass clippings, wood piles, or any other notorious spider hangouts. You can also check all door openings and windowsills to make sure there isn’t room for spiders to get in that way,and apply caulk when needed.
Citrus Does The Trick
It’s common knowledge that spiders hate all things citrus. Rubbing citrus peels on areas where spiders are known to frequent, like baseboards, windowsills and bookshelves, is a great way to keep them from coming around. Even using lemon scented furniture polish can drive spiders away!
source: Natural Living Ideas