A Comprehensive Guide to Identification, Damage, and Control

Cutworms are a common garden pest that can cause significant damage to plants if left untreated. These pests are the larvae of several species of moths and are often found in gardens and agricultural fields. In this article, we’ll provide a detailed description of cutworms, how they cause damage to plants, and how to identify them. We’ll also discuss natural methods of dealing with cutworms before exploring other pest management options.


Cutworms are the larvae of several species of moths, including the armyworm and the cutworm moth. They are usually found in soil or leaf litter and are most active at night. Cutworms are typically brown, gray, or black and can range in size from less than an inch to over two inches in length. They are often described as “fat” or “stubby” and may curl up into a C-shape when disturbed.


Cutworms can cause significant damage to plants by cutting through the stems near the base, causing the plants to wilt and eventually die. They typically feed on young seedlings and can quickly destroy an entire crop if left untreated. Some common signs of cutworm damage include missing or wilted plants, cut stems, and irregular feeding patterns.


Natural Control Methods

There are several natural methods of controlling cutworms that can be effective when used properly. Here are some of the most common natural methods:

  1. Handpicking: One of the simplest methods of controlling cutworms is to simply pick them off the plants by hand. This can be time-consuming, but it can be effective for small gardens or areas with a low infestation.

  2. Beneficial Insects: Beneficial insects such as parasitic wasps and ground beetles can be effective in controlling cutworm populations. These insects prey on cutworms and other garden pests and can help keep their populations in check.

  3. Diatomaceous Earth: Diatomaceous earth is a natural powder made from the fossilized remains of diatoms. It can be sprinkled around plants and will cut through the cutworms’ exoskeletons, causing them to dehydrate and die.

  4. Companion Planting: Planting certain plants near susceptible crops can help deter cutworms. For example, planting marigolds or other plants with a strong scent can help repel cutworms and other pests.

  5. Crop Rotation: Rotating crops can help reduce cutworm populations by disrupting their life cycle. Cutworms typically lay their eggs in the soil near the plants they feed on, so rotating crops can help break this cycle and reduce their numbers.

Other Methods of Pest Management:

If natural methods of control are not effective, there are several other methods of pest management that can be used. Here are some of the most common:

  1. Pesticides: There are several pesticides available that are effective in controlling cutworms. These should be used as a last resort and should be applied according to the label instructions.

  2. Biological Control: Certain types of bacteria and fungi can be used to control cutworms. These are often applied as sprays or dusts and can be effective when used properly.

  3. Cultural Control: Changing cultural practices can also help reduce cutworm populations. For example, plowing under crop debris after harvest can help reduce the number of cutworms that overwinter in the soil.


In conclusion, cutworms are a common garden pest that can cause significant damage to plants if left untreated. There are several natural methods of controlling cutworms, including handpicking, beneficial insects, diatomaceous earth, companion planting, and crop rotation. If natural methods are not effective, there are other pest management options available, including pesticides, biological control, and cultural control. By taking a proactive approach to pest management and implementing a combination of natural and other methods, it is possible to keep cutworm populations under control and minimize the damage they can cause to plants.

In Green Grass Grove’s location in Live Oak, FL (USDA Zone 8B), cutworms can be particularly active during the spring and fall months when temperatures are moderate. It’s important to monitor plants regularly for signs of cutworm damage and take action as soon as possible to prevent the problem from getting out of hand.

When using any pest management method, it’s important to follow the instructions carefully and take appropriate safety precautions. Pesticides should be used sparingly and only as a last resort, as they can be harmful to beneficial insects and other wildlife. Whenever possible, natural methods should be used first, as they are often safer and more environmentally friendly.

In conclusion, cutworms can be a serious problem for gardeners and farmers, but with a combination of natural and other pest management methods, it is possible to keep them under control and prevent significant damage to plants. By being proactive and taking a multi-faceted approach to pest management, gardeners can enjoy healthy, thriving plants and a bountiful harvest.

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