Does Vinegar Kill Spiders on Contact?

The amount of acetic acid in any vinegar will determine how fast it will kill spiders. Before you pick any vinegar with the intention to get rid of spiders, you have to know the type that will work efficiently.

White vinegar has the highest concentration of acetic acid that kills spiders on contact. Mix 125ml of acetic acid with 65ml of water and spray it directly on them. The acetic acid found in vinegar can burn spiders to death.

White vinegar is the most distilled vinegar and is efficient in killing spiders. You need to mix it with water so that it spreads with ease. This is also used for cleaning because it is more concentrated when compared to others.

Does Vinegar Kill Spiders?
Does Vinegar Kill Spiders?

How to kill spiders with vinegar

If you want to get rid of spiders fast, ensure that you spread vinegar on them. Try and get closer before you spray because vinegar will kill spiders instantly on contact. Confirm that a good amount of vinegar covers them. Here is how to use white vinegar to get rid of spiders at home;

  1. Get a quarter glass of white vinegar in a hand spray
  2. Mix with a little water not more than the vinegar
  3. Ensure you cover your eyes or at least be safe when spraying
  4. Spray this directly on the spiders to kill them

There is also 30% vinegar which is the strongest vinegar you can get in the market. This is always used in industrial farming and cleaning greasy machinery. You can also use this to get rid of spiders outdoors. It is concentrated and the smell can last for some time.

How often to spray vinegar for spiders

When killing spiders with vinegar, just spray it once and ensure it gets to the spiders. However, you should spray white vinegar on the possible nesting areas after every 2 weeks to repel them.

However, the duration depends on the type of vinegar. Apple cider vinegar can be sprayed as often as every week while white vinegar can be sprayed after every 2 weeks to deter spiders.

Using the common vinegar for outdoor spiders is not efficient because the smell evaporates very fast. Using those kinds of vinegar to remove spiders will be more effective in the house but not outside.

Does apple cider vinegar kill spiders?

Apple cider vinegar can kill and repel spiders because of its harsh smell. Soak some cotton balls in apple cider vinegar and place them in areas where you want to deter them. If you are looking to keep spiders away, then this would be your best option.

Spiders hate the smell of apple cider vinegar and using it will also leave a strong smell being that will last for some time. This is what makes it the best when it comes to repelling spiders.

When using vinegar to clear spiders, it is also good to clear the cobwebs and remove any other factors that attract them to your house.

If you do not do this, they will keep coming back and that means that you will be using a lot of vinegar which is not cheap. Vinegar is one of the essential products that you should be having at home and wasting it may cost you a lot.

Does vinegar kill spider eggs?

Vinegar kills spider eggs by dissolving the silk that protects the eggs. After the egg sac is destroyed, it will burn the unhatched spiderlings. Combine 4 ounces of white vinegar with 2 ounces of warm water and spray it on the spider eggs.

Spraying white vinegar on a spider’s egg sac will destroy it on contact and all the eggs will be eliminated. The egg sac is made of silk that vinegar can dissolve. However, some spiders make thick egg sacs from silk and this may take time for vinegar to destroy.

If the woven silk that contains the eggs is not extra thick, then vinegar will destroy it when sprayed close enough. Ensure that the white vinegar solution is sprayed close enough to maximize the efficiency rate.

Not all types of vinegar can destroy a spider’s egg sac. It is only concentrated white vinegar and 100% pure vinegar that can do the job. The silk is naturally slippery and using weak vinegar with low acidic concentrations will have no effect on the spider eggs.

Vinegar spider myth

Thinking that all kinds of vinegar will kill spiders is a myth. There are different types of vinegar, and using the wrong one may not have any effects on them.

The wrong one in this case refers to those with very low levels of acetic acid. If you mix those with water, it will become even weaker. You need to check the strength since the elimination rate depends on it.

1. White wine vinegar

A good example of vinegar that will not help you in killing spiders is white wine vinegar. This is because it has high flavor content and very minimal acetic acid levels.

As much as it makes a great staple in the kitchen, it will not be effective when it comes to keeping spiders away.

2. Dose champagne vinegar Kill spiders?

Another vinegar that is not effective in killing spiders is champagne vinegar because it is very low in acetic acid.

Mixing it with water to spray on spiders will not do much. This vinegar is always used in light meals when you just need a little touch of vinegar that is not strong.

3. Does malt vinegar kill spiders?

Someone asked if malt vinegar will kill spiders. Well, it will repel them but it is not as effective as using white vinegar.

Malt vinegar is not as strong as white vinegar because it is made from barley while the other is distilled. This is why the former will deliver much better in this case.

4. Sherry vinegar

Sherry vinegar is also not the best when getting rid of spiders. It does not have high acidic levels and you may have to use it in large quantities which is a great loss. You cannot also use this to ward off outdoor spiders since even when it is used indoors, it will be less effective.

Those kinds of vinegar with less acetic levels will not help you in this case since they are only made for use in the kitchen. Remember, they are manufactured for cooking and you cannot use them for general purposes like you would do with others.

Vinegar for spiders in the house and outdoors

It is also advisable to use vinegar only when removing spiders indoors because it is not very effective when used outdoors. This is because it evaporates very fast when exposed to strong winds.

The advantage of using vinegar soaked in cotton balls to repel spiders is that it will also control flies and keep other crawling insects away.

However, do not use vinegar to get rid of spiders in your bedroom especially at night. This is because the strong scent may remain around for some time and it may end up irritating your nose.

When controlling spiders outdoors, use alternatives like bleach for spiders since vinegar may evaporate faster. However, Vinegar is effective on spiders when you spray it close and direct. if you have to use it outside, aim for the target at a close range.

You may want to check what attracts spiders to your room and deal with that instead of using vinegar in there. Another alternative is to use natural plants that repel insects. This one of the best ways to repel spiders if you do not want to use vinegar. Here is a video on what vinegar does to spiders:

References:

  1. PubMed.gov: Natural Compounds as Spider Repellents
  2. Independent: How to keep spiders out of your house