Is Diesel A Good Weed Killer?

You’ve tried every weed killer under the sun to get rid of those pesky weeds in your lawn and garden, but they keep coming back. We understand that you’re at your wits’ end and want to try something new: diesel fuel. Is it, however, a good idea?

Diesel gasoline is a harmful material that will destroy your weeds effectively but only momentarily. When using diesel as a weed killer, you must apply treatments on a frequent and cautious basis because diesel is poisonous to all living things and can pose a safety danger.

It’s a good idea to look for non-toxic alternatives to diesel fuel first, but if you’re going to try out the diesel-as-weed-killer method on your garden, you’ll need to know how to treat it properly.

Is It A Good Idea To Kill Weeds With Diesel Fuel?

It is necessary to consider diesel fuel as a two-edged sword in lawn maintenance and garden management. It will certainly kill your weeds, but if you are not careful, it will also harm the rest of your garden.

Depending on your garden, your aims, and your technique, diesel fuel could be a beneficial tool in your weed-fighting armory.

There are several benefits of using diesel fuel instead of store-bought herbicides, and we have listed them below:

  • It is faster. Diesel fuel kills grass and weeds in around 48 hours.

  • It penetrates deeper into the soil, allowing it to harm the root system of undesirable plants. However, keep in mind that diesel fuel does not harm seeds.

  • It is less expensive. diesel fuel costs about $3 to $4 per gallon on average, but store-bought weed herbicides can range from $12 to $100 per gallon.

Although diesel fuel is also less harmful than most weed killers it still poses safety dangers, and you should use caution while applying diesel to your lawn or garden.

Will Diesel Fuel Destroy Weeds?

Diesel fuel is poisonous to all plant life and will kill any plant material that comes into touch with it. This includes weeds, grasses, vegetables, and even flowers. However, using diesel fuel to kill weeds is a two-edged sword. Yes, diesel fuel will get rid of weeds, but it will also harm the healthy plants in your yard.

As a result, you must exercise extreme caution and know exactly where to pour the diesel fuel so that you do not harm your entire lawn or garden. Remember that applying diesel fuel to the soil can also destroy insects and germs.

This is another two-sided problem because you will not only be removing hazardous bugs but helping ones as well. Diesel fuel will kill the beneficial bacteria that are responsible for the proper growth of your soil and plant root system. 

Is It True That Diesel Fuel Permanently Kills Weeds?

No, diesel fuel will not permanently kill weeds. Although this poisonous fuel can damage plant leaves, stems, and roots, it has no effect on weed seeds.

This means that once the diesel has been washed away from the soil (for example, by rain), the seeds will germinate and the weeds will grow again. To attain the best benefits as a non-permanent treatment, you’ll need to use diesel fuel at least once a season.

How To Get Rid Of Weeds Using Diesel Fuel

The following items will be required to carry out this procedure:

  • Gasoline jug or jerrycan for the transportation and storage of diesel fuel.

  • A spray bottle for thick liquids with a direct spray nozzle.

  • Funnel to fill the spray container with diesel. Make sure to use a strong plastic one.

  • shovel to remove the dead weed.

  • Some sand in case you spill diesel on your lawn or garden.

  • Personal Protective Equipment (PPE) to protect yourself when spraying your lawn with diesel. Wear gloves, a mask, and protective eyewear, to make sure you are safe.

Once you have everything ready, carefully follow the procedures below to destroy the weeds in your garden using diesel fuel:

1 – Fill the jug with 1 or 2 gallons of diesel fuel from your local gas station.

2 – Pour the diesel fuel into the spray bottle using the funnel. We recommend doing this in your garage, tool shed, or any other location away from plant cover to avoid accidentally spilling some of the fuel and killing plants you wish to maintain.

3 – Take the spray bottle and spray the diesel directly on the weed’s roots. Make sure it comes into contact with the roots, as well as the leaves and stems of the undesired plants.

4 – When the weeds and grass are dead, use a shovel to remove them together with one inch of the soil beneath. This will keep undesirable growth in that region at bay for at least a season.

This technique does not necessitate a large amount of diesel because a modest level of contact is sufficient to kill the weeds. Besides, any amount that escapes will harm the plants that it comes in contact with.

Spray the weeds until they are soaked. However, there is no need to saturate the roots and grass in order for the diesel to work.

If you inadvertently leak diesel in the wrong place, make sure to remove at least the top four inches of soil before replanting. Because diesel fuel is harmful to all plant material, it will prevent growth in that area for at least one season.

Precautions To Take When Using Diesel To Kill Weeds

While it is true that diesel fuel is quite excellent at eradicating weeds and undesired vegetation, it may also be quite detrimental to the environment. The following are some safety precautions that you should follow to minimize the damage:

  • Spray diesel in the morning if there is no danger of rain or wind in the next 48 hours.
  • Because diesel is a fire hazard, it should not be sprayed near fires.
  • Diesel will annihilate all plant lift. As a result, you should avoid spraying it on flowers or in areas with other healthy plants.
  • Keep the diesel out of the spray container. Instead, after you’ve finished spraying, return it to the gasoline jug and store it in a cold, dry place where it won’t leak or be breathed. Make sure to identify the spray container so it doesn’t get misplaced.
  • When spraying diesel on weeds, wear a mask because it can irritate your lungs if breathed.
  • If you have well water, avoid using diesel fuel on your land because it would most likely soak into the ground and end up in your water.
  • After spraying diesel, keep animals and children away from the area.

How Long Does Diesel Take To Kill Weeds?

After spraying, diesel fuel will take around 48 hours to effectively destroy the weeds. Although you will observe immediate impacts as the plant leaves begin to wilt, diesel must be in touch with the plant for at least 48 hours to effectively kill it.

Is Diesel Fuel Effective In Killing Grassy Weeds?

As previously stated, diesel fuel is harmful to all plant materials and will kill any part with which it comes into contact. This means that because diesel is an indiscriminate plant killer, it will also get rid of grassy weeds when applied in the same way that it gets rid of weeds.

Depending on the type of grassy weeds, the amount of diesel sprayed may need to be increased to guarantee sufficient coverage.

Is Roundup More Effective When Mixed With Diesel?

The combination of diesel and roundup is far superior to each of them on its own. Roundup is an extremely powerful weed killer on its own, with results visible within three hours of spraying.

Both will kill weeds to varying degrees, though roundup will be faster. Roundup also kills the seeds, preventing them from germinating in the following season. However, it is not as effective as diesel at killing all weeds as diesel is. As a result, the two combined will provide a better and long-term solution to weeds in your garden.

Non-Toxic Weed Killing Alternatives

There are various non-toxic weed management solutions available if you are ready to put in a little extra effort. Because they do not kill indiscriminately, these options are beneficial for the environment, humans, pets, and garden.

One of the negative consequences of using diesel or other chemical-based weed killers is that they frequently kill out the beneficial soil biota or insects that feed your plants and carry out vital nutrient cycles. But there are ways to prevent this from happening.

These are the top three non-toxic weed killers options:

  • Boiling water. While it may be inconvenient to run back and forth to your teapot, boiling water destroys weeds and their seeds by cooking them.
  • Rubbing alcohol. This acts as a weed vampire, drawing out all of the water from the plant and killing it.
  • Salt and vinegar. This is also a really powerful weed killer, especially when one teaspoon of dish soap is added.

Last Thoughts

If you opt to use diesel fuel to kill the weeds in your backyard or garden, be sure you know where you want it to go and what you want to get rid of.

Follow the preceding steps carefully and strictly stick to the safety recommendations. This way, you may use diesel to eliminate weeds in your garden, yard, or sidewalk in a safe and effective manner.

That being said, there are numerous non-toxic options that we strongly advocate utilizing before resorting to diesel. The earth will thank you later.