How to Get Rid of Root Weevils (Natural & Organic Methods) - Organic Daily Post

How to Get Rid of Root Weevils (Natural & Organic Methods)

By Sabrina Wilson / July 27, 2022

to farm crops

Root weevils are damaging pests of many crops. The adult weevils feeds on the leaves of vegetables and other plants, causing notching or skeletonizing damage. The larvae develop in the soils, feeding on the roots of plants. Feeding damage by both the adults and the larvae can reduce the vigor of plants and, in severe cases, kill them. Yield losses from root weevil damage can be significant in vegetable crops, and the economic impact of this pest can be considerable. Control of root weevils can be difficult, and often requires a combination of cultural, chemical, and biological control measures.

Root weevils are difficult to control with chemical pesticides due to their feeding habits. They are most active at night and their small size allows them to hide in cracks and crevices during the day. Root weevils feeding on the roots of plants can cause significant damage and even death. Cultural practices such as sanitation and weed control can help to reduce the number of root weevils present. However, the use of chemical pesticides is often necessary to achieve satisfactory control.

Organic methods are preferable for getting rid of root weevils for a number of reasons. First, organic methods are more environmentally friendly. Second, organic methods are more effective in the long-term. Third, organic methods are safer for humans and animals. Finally, organic methods are more economical.

Beneficial Nematodes

Beneficial nematodes are tiny, parasitic worms that kill many different types of common lawn and garden pests, including root weevils. You can purchase them online or at some garden supply stores. Once you have them, you need to mix them with water according to the package directions and then apply them to your garden using a watering can or hose-end sprayer. Be sure to water the area well after applying the nematodes.They will go into the soil and kill the root weevils and their larvae. This is a safe and natural way to get rid of root weevils and other pests in your garden.

Neem Oil

Neem oil is a natural, non-toxic way to get rid of root weevils. The oil is effective at killing the larvae and eggs of the root weevil, and can also be used as a preventative measure. To use neem oil, mix it with water at a ratio of 1:1 and apply it to the affected area. It is best to apply the solution in the evening, as this is when root weevils are most active.

Insecticidal Soap

Insecticidal soap is made of potassium salts of fatty acids, which are usually derived from plants. These soap molecules act like surfactants, which means they lower the surface tension of water, allowing it to penetrate the exoskeleton of insects and dehydrate them. Insecticidal soap is most effective against soft-bodied insects, such as aphids, whiteflies, and spider mites. While it can kill some hard-bodied insects, like scales and caterpillars, it must be directly sprayed on them and can take several days to be effective.

If you suspect that your plant has root weevils, begin by checking the base of the plant for small, dark-colored insects. If they are present, you can try to treat the plant with insecticidal soap. To make your own insecticidal soap, mix 1 tablespoon of dish soap with 1 quart of water. Spray the soap solution on the base of the plant, being sure to coat the roots and soil well. You may need to repeat this treatment every few days for a week or two to fully rid your plant of root weevils.

Horticultural Oil

Insecticidal soap is made from a potassium salt of a fatty acid (usually lauric acid). This soap kills insects by breaking down their cell membranes, causing them to dehydrate and die. Insecticidal soap is safe to use around people and pets when used as directed, and can be an effective way to control pests in the garden.

Horticultural oil is a great way to get rid of root weevils. To use it, mix 1 part horticultural oil with 1 part water. Then, wet a cotton ball with the mixture and apply it to the affected area. The horticultural oil will kill the root weevils and their larvae.


1) What are root weevils?
Root weevils are small, dark-coloured, horned beetles that often attack garden plants. The adult root weevil feeds on leaves, flowers and fruit, while the larva feeds on the roots of plants.

2) What damage do root weevils cause?
Root weevils can cause significant damage to garden plants, especially if they are present in large numbers. The adult root weevil feeds on leaves, flowers and fruit, while the larva feeds on the roots of plants. This can weaken and damage plants, and in some cases kill them.

3) How do I know if I have a root weevil problem?
If you notice small, dark-coloured, horned beetles on your plants, or damaged leaves, flowers or fruit, it is likely you have a root weevil problem.

4) How do root weevils get into gardens?
Root weevils often enter gardens on plants or in soil that is already infested. They can also be brought in on clothing or shoes.

5) What can I do to prevent root weevils?
You can prevent root weevils by carefully inspecting plants before you bring them into your garden, and by keeping your garden clean and free of debris.

6) What can I do if I have root weevils?
If you have root weevils, you can try to control them by hand-picking the beetles off your plants and disposing of them. You can also use a garden hose to spray them off. You can also try to attract predators, such as birds, that will eat the beetles.

7) What chemicals can I use to control root weevils?
There are a number of chemicals that can be used to control root weevils, including insecticides. However, it is important to read the label carefully and follow the directions to avoid harming other animals or plants.

8) Will root weevils come back after I get rid of them?
Root weevils can be difficult to get rid of completely and they may come back after you have removed them. If you have a root weevil problem, it is important to inspect your plants regularly and take steps to control them as soon as you see them.

9) Are root weevils harmful to humans?
Root weevils are not harmful to humans. However, their damage to plants can make them a nuisance in the garden.

10) What other pests are similar to root weevils?
There are a number of other pests that are similar to root weevils, including other types of weevils.

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About the author

Sabrina Wilson

Sabrina Wilson is an author and homemaker who is passionate about a holistic approach to health. When she is not writing she can be found tooling around in her garden with the help of her appropriately named dog Digby, bicycling in the park, and occasionally rock climbing…badly. Sabrina is a staff writer for the Organic Daily Post.

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