How To Use Plaster Of Paris For Rat Control | Find Out Here

Are you fed up with trying to repel or kill rats using methods that don’t give good results? 

You could try mothballs, coke, or even coke to eliminate them with sometimes little to no success.

But did you know that Plaster of Paris can serve as rat poison?

Yes! This article will show how you can use plaster of Paris for rat control. So keep reading to know more! 

Does Plaster Of Paris Kill Rats? 

Yes! Plaster of Paris can kill rats because it contains calcium sulfate that turns into an indigestible solid in the stomach when mixed with fluids. 

Plaster of Paris looks similar to flour and sugar. So rats mistake it for food and are lured in to eat it. This causes them to bloat and die. 

Though using this method can torture rats, it is effective in getting rid of these disease-causing, annoying creatures. 

How To Make Rats Poison Using Plaster Of Paris? 

The idea behind all these methods is to use foods that will attract rats along with plaster of Paris to kill rats.

Minced Meat + Plaster Of Paris

Rats love meat. You can use minced meat that has been steamed and dried. Make sure they’re dry entirely so that the moisture doesn’t harden the plaster of Paris. 

  • Pour 1/4 cup of plaster of Paris powder into a clean, dry container
  • Add 1/2 cup of dried minced meat
  • Place it near the rat’s hideout and let them eat it

Oatmeal + Plaster Of Paris 

You can use any type of oatmeal, including coarse, pinhead, or Irish oatmeal.

All this will work as bait to kill rats when mixed with plaster of Paris because rats love them. However, ensure they are dried and in powdered form.

  • Mix 3/4th glass of oatmeal with one glass of plaster of Paris powder. 
  • Ensure this is adequately blended and place the mixture where you know the rats will find it. 
oatmeal and plaster of paris for rats

Flour + Sugar + Plaster Of Paris

Rats love sweet food. Sugar and flour can attracts rats to eat them in large quantities. 

  • Pour 1/4 glass of flour into a dry container
  • Add 1/2 glass of plaster of Paris
  • Then mix this with 1/4 glass of sugar
  • Spread this where you always see the rats

Powdered Chocolate + Plaster of Paris

Rats can detect the smell of chocolate from a distance and get attracted to the sweet smell. Using chocolate is one of the best methods to kill rats with plaster of Paris. 

  • Put five tablespoons of powdered chocolate in a clean bowl
  • Add eight tablespoons of plaster of Paris to it and mix it well
  • Let the rats eat the mixture

Powdered Ground Nuts + Plaster of Paris

Rats are fond of nuts in general. They tend to eat it even if they are complete. So using powdered groundnuts can be very effective. 

  • Mix 1/2 cup plaster of Paris powder with 1/2 cup of powdered ground nuts and blend them well.
  • Place it in a strategic position where the rats will enjoy it. 
  • Wait for the results.

Make sure to use powdered nuts because ground nuts as a whole cannot get mixed well with the plaster of Paris powder.

groundnuts for rats

Where To Put These Mixtures For Rat Control? 

Looking for strategic places to put your bait of plaster of Paris for rat control is challenging. But putting them in the right place can give you great results.

Here are some things you can try:

  • Look for and locate any holes in your house or garden. Holes are generally found at the bottom of walls. And that’s how rats enter the house and even your bedroom
  • Look for droppings to find the area where the rats roam. 
  • Don’t close the entry points like holes or wall gaps before you are sure the rats have gone out. Otherwise, the rats cannot exit after eating the mixture and might die inside your house. You don’t want your home stinking of dead rats.

How Long Does Plaster Of Paris Take To Kill Rats?

It usually takes 2-4 hours for rats to die after consuming plaster or Paris. The longest time a rat takes to digest food is 2 hours. 

But the duration of the plaster of Paris to work depends on the quantity the rats consumed. The greater the amount, the later they die. 

After they take the plaster of Paris, it starts to solidify in their stomachs, and the rats start stretching out of pain. Since they cannot vomit, they get terrorized and search for water. 

When they drink water, the plaster of Paris solidifies further, gets sticky, and unable to let it out, the rats die of bloating.

Is Using Plaster Of Paris To Kill Rats Safe? 

Yes! Using plaster of Paris is safe as far as kids and pets don’t reach it. Make sure your kids and pets don’t get near it. 

Doing this at night after everyone sleeps and removing the bait before everyone wakes up is recommended. 

get rid of rats

Final Words

Though this method sounds pretty compelling, the rats die a torturous death.

So if you are conscious of not hurting animals, please don’t go for Plaster of Paris for rat control. 

On the other hand, if you are concerned about the health and hygiene of your family, then this method would be the most effective to get rid of rats from your surroundings. 

So weigh all the options carefully before you go ahead!

Photo of author


Daniel White
I'm Daniel White, and I live in Jacksonville, Florida. The warm and humid climate of Florida gives an ideal habitat for many different kinds of pests. So, if I had to live in Florida, I had to learn how to deal with these pests. Now, I have 7 years of experience in Pest Control.

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