How do you keep cutworms away?

Cutworms can be a real nuisance in the garden, as they have a voracious appetite for seedlings and can quickly destroy your hard work. However, there are several effective methods to keep cutworms away and protect your plants.

1. Use plant collars: One of the simplest and most effective ways to prevent cutworm damage is by creating plant collars. These collars act as a physical barrier, preventing the cutworms from reaching the stems of your seedlings. You can make collars using materials such as cardboard or aluminum foil. Cut them into 4-inch-tall strips and encircle each stem with them, burying the collar about an inch into the soil to ensure the cutworms cannot crawl underneath.

2. Practice crop rotation: Cutworms tend to lay their eggs in the soil near their preferred host plants. By practicing crop rotation, you can disrupt their life cycle and reduce their populations. Avoid planting the same types of plants in the same location every year. Instead, rotate your crops, and this will help break the cycle of cutworm infestations.

3. Till the soil: Cutworms overwinter in the soil as pupae, so tilling the soil in the fall and early spring can help expose and disturb their pupae, making them more vulnerable to predators and unfavorable weather conditions. This can be an effective way to reduce their numbers before planting.

4. Use biological controls: Introducing natural predators of cutworms can help keep their populations in check. Beneficial insects, such as parasitic wasps and ground beetles, feed on cutworms and their eggs. You can attract these beneficial insects to your garden by providing them with a diverse habitat, including flowering plants and permanent ground cover.

5. Apply beneficial nematodes: Another biological control option is the use of beneficial nematodes. These microscopic worms are natural enemies of cutworms and can be applied to the soil. They infect and kill the cutworm larvae, effectively reducing their numbers. Follow the instructions on the packaging for proper application.

6. Remove weeds and debris: Cutworms often hide in weeds and debris, so keeping your garden clean and free of these materials can help reduce their hiding spots. Regularly remove weeds, fallen leaves, and other organic matter where cutworms might seek shelter.

7. Monitor and handpick: Regularly inspect your garden for signs of cutworm activity. If you notice cutworms on your plants, you can handpick them and remove them from the garden. This method works best when the infestation is small or localized.

8. Practice good garden hygiene: By maintaining good garden hygiene, you can prevent cutworms from finding suitable habitats. Clean up any plant debris, fallen fruits, or vegetables as they can attract cutworms. Additionally, keeping the garden tidy and removing any decaying organic matter can help deter these pests.

9. Use organic insecticides: If the above methods do not provide sufficient control, you can consider using organic insecticides specifically labeled for cutworm control. These products typically contain natural ingredients such as Bacillus thuringiensis (Bt), which is a bacterial toxin that specifically targets certain insect larvae, including cutworms. Follow the instructions on the product label for safe and effective use.

Remember, prevention is key when it comes to cutworms. By implementing these strategies and staying vigilant, you can keep these destructive pests away from your precious plants and enjoy a thriving garden.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.