Sweet potato will only kill rats if they eat them raw because it contains Ipomeanol which is toxic to rats. Since raw potatoes are not tasty to rats and mice, crush and mix them with sweet bait like chocolate.
Raw sweet potatoes are toxic to rats because it triggers excess production of body fluids which causes difficulty in breathing. When this condition persists with stomach upsets from undigested potatoes, they will die in less than a day.
Even though sweet potatoes will not kill rats and mice instantly, they provide a natural solution over time. The levels that affect rats cannot have any significant effect on you and your pets. This makes them a safe non-toxic alternative to use at home.
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How to kill rats with sweet potatoes
Peel two rotting raw sweet potatoes and chop them into grain size pieces. Blend 2 teaspoons of those with 1 tablespoon of chocolate. Make a good layer of chocolate around the potato pieces and let them eat. Rats will die from severe congestion and diarrhea if they consume this in large quantities.
Chocolate is the best bait to use when using sweet potatoes against rats because they never find it easily. Produces a sweet smell that will attract rats to it very fast. Additionally, it is sweet and rats will consume the bait in large quantities.
1. Powdered sweet potato bait
Sweet potato powder can also be used to get rid of rats since it increases oxalate levels in their body. This can have negative effects on a rat’s renal function when ingested in large quantities. It happens because it will not be metabolized as required.
Eliminate rats and mice by mixing 5 tablespoons of sweet potato powder, 3 tablespoons of fried mince meat, and 1 table spoon of blue cheese. Combine them until they blend well and let them have it. After 1-2 days, you will see them dead and the only job left is to clean the mess.
2. Sweet potatoes with black holes on the surface
When out in the market, look for sweet potatoes that have deep black spots, holes, or pits on the surface. Alternatively, buy fresh ones and make holes in them. Then keep them in an airtight bag for 1 week until they start to rot.
Sweet potatoes that have a dark brown or black tint on the surface are a sign of Alternaria brassicicola infection. This produces toxins in alcohol form that and can kill rats by destroying their liver. The effects can be seen after 2-4 hours if a good amount is ingested.
To kill rats, crush a rotting sweet potato and mix it with equal parts of peanut butter. Then leave the mixture in rat-infested areas and let them take it. Ingesting this causes sudden stomach upsets with constant diarrhea in rats. They will die after 6-12 hours if they eat the bait in large quantities.
3. Sweet potato flakes
When rats eat sweet potato flakes in large quantities, it dehydrates their cells. This gives them an urgent urge to take water. The flakes will expand when mixed with water in their stomach and they will die from severe constipation and bloating.
However, this will only affect rats if they consume a good amount of it. The only way to succeed is to ensure that it is the only food they can easily find around. When rats are starved, they get extra desperate and they can easily eat sweet potato flakes in large quantities.
Can rats eat sweet potatoes
Yes, rats enjoy eating sweet potatoes and this is not harmful to them as long as they are properly cooked. Toxic properties in sweet potatoes are neutralized when cooked under high temperatures. Rats and mice like the taste of cooked potatoes and this cannot kill them.
However, poorly cooked sweet potatoes can cause bloating, diarrhea, and congestion in rats. Even though this does not kill them instantly, it makes them weak and extremely sick. Since they do not vomit, they will not remain alive for more than 2 days depending on the quantities consumed.
Conditionally, adding raw tiny slices of raw onions for rats in sweet potatoes that are cooked under low heat can kill rats in less than 6 hours. A combination of those two is deadly homemade rat poison. This takes time but is effective especially if you are looking at eliminating them in large numbers.
This can be successfully used to get rid of rats in a backyard or garden. Sweet potato bait for rats will work best outdoors because rats rarely find delicious food out there. Anything that is cooked and left in an infested garden will attract them very fast.
The only challenge for outdoor rats is that you will need to take the bait in large quantities. Unless that okay with you, just use it for indoor control. However, potato baits are safe to use in a rat-infested garden since there are no chemicals involved.
Rats and sweet potato facts
While it has been observed that sweet potatoes can have negative effects on rats, they also make a great meal. However, it has to be well cooked under high heat and they should not consume it in large quantities.
Sweet potatoes in a rat’s stomach are not easily digested. Eating large amounts causes severe constipation which can make them lethargic. This makes it easy to eliminate them since they will not run as fast as they normally do.
Even though sweet potatoes can kill rats, it is not an efficient measure against them. They have to consume a good amount of it before it takes a toll on them. Economically, this is not pocket-friendly and you may want to get better alternatives. Additionally, mashed potatoes mixed with boric acid can kill rats if they ingest a good amount of it.
Ingesting sweet potatoes may turn into cyanide which is toxic to rats but this can only be fatal in high quantities. Cyanide is rarely found in sweet potatoes. Even if it is present, it will only kill rats if they eat raw onions in large quantities.