Investigate Problem

How Can I Control Cutworms?

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proposes Do you want to control cutworms using the biological control method?

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Most common questions used to investigate

Do you want to control cutworms using the biological control method?

Do you want to control cutworms with home-made protective collars?

Do you want to control cutworms using organic methods?

Do you want to control cutworms using insecticides?

Common conclusions

Beneficial nematodes released in moist, spring soil will attack and destroy cutworms living underground. They’re especially beneficial to apply the season after cutworms have been a problem. At the first sign of moths, release trichogramma wasps weekly for three consecutive weeks to parasitize cutworm eggs.

Place cardboard or aluminum foil collars around transplants. This will create a physical barrier that prevents the cutworm larvae from feeding on your desired plants. It is important that a piece of the collar is underneath the soil line and some of it is above ground. This technique should be able to prevent most cutworm species from eating your plants.

Go out at night with a flashlight and gloves. Pick off the cutworms and drop them into soapy water; repeating this every few nights. Sprinkle used coffee grounds or eggshells around your plants. Circle stems with diatomaceous earth, a natural powder made from the ground up fossils which kills insects when they walk over it.

Insecticidal control of cutworms is best done by contact chemicals. For the most effective treatment apply insecticides in the evening. Depending on the severity of the infestation, it might be best and much more economical to just treat the patches that are infested rather than the entire field. Three common contact insecticides are effective in controlling cutworms. These chemicals are carbaryl, cyfluthrin, and permethrin, which have medium to long residual effects.

Keeping cutworms under control can be done by removing weeds and plant residue, minimizing the egg-laying sites and young weeds that small cutworms feed on. Make sure to till your land before planting and again in the fall as this will kill and expose the overwintering larvae. Tilling will also remove the plant residue to help discourage the laying of eggs.

References

https://www.farms.com/field-guide/pests/cutworms.aspx
https://www.almanac.com/pest/cutworms
https://www.planetnatural.com/pest-problem-solver/garden-pests/cutworm-control/

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Author

Sreten null
Hi! I’m Sreten Filipović. I graduated from the Faculty of Agriculture at the University of Belgrade, with a master's degree in Environmental Protection in Agricultural Systems. I’ve worked as a researcher at Finland's Natural Resources Institute (LUKE) on a project aimed at adapting south-western Finland to drought episodes. I founded a consulting agency in the field of environment and agriculture to help farmers who want to implement the principles of sustainability on their farms. I’m also a founding member of the nonprofit organization Ecogenesis from Belgrade whose main goal is non-formal education on the environment and ecology. In my spare time, I like to write blog posts about sustainability, the environment, animal farming, horticulture, and plant protection. I’ve also published several science-fiction short stories. You can find me on LinkedIn at https://www.linkedin.com/in/sreten-filipovi%C4%87-515aa5158/