This archive report was first published on 16 May 2020.
As we navigate the long rains season, tree planters are facing a daunting challenge: cutworms. These destructive insects are the larvae of night-flying moths that feed on young plants, causing significant damage to crops and trees.
According to the Old Farmers' Almanac, cutworms feed on roots and foliage of young plants, and will even cut off the plant from underneath the soil. Even if only the bottom of the plant is destroyed, the top will often shrivel and die.
Prevention is key in controlling cutworms. Ploughing or cultivating the soil well before planting your trees or other crops is a big help. This is because the larvae hiding in the soil die when exposed to the sun. Weeding is another method that prevents cutworm infestation. It should be done to remove dead plant material since the eggs that hatch into cutworms are laid on it.
For small gardens, hand-picking the pests is a viable option. They normally come out in the evening to feed and with a torch you can pick them and place them in soapy water, which kills them. Even during the day, you can get to them if you dig around the stem of plants that are affected.
However, for larger areas, chemical control may be necessary. There are a number of pesticides that are effective against cutworms, available in agrovet shops. It is essential to seek expert advice on their application to avoid harming useful insects like bees and butterflies.
Published on May 16, 2020, this article highlights the importance of taking proactive measures to prevent cutworm infestations and protect your young trees.