Which Insect Cuts Tomato Plants?

Tomatoes are a popular vegetable widely used in cooking and eaten raw as well. They are easy to cultivate, but sometimes, they get affected by insects and diseases which can cut down the yield drastically. One of the most common complaints from gardeners growing tomatoes is the presence of cut stems or fruit. This article aims to throw light on the types of insects that can cut tomato plants and how to control them.

Cutworms

The most common insect that is known to cut tomato plants is the cutworm. They are the nocturnal larvae of several species of night-flying moths, including the army cutworm, black cutworm, and variegated cutworm. The larvae feed on stems near or just below the soil line, cutting through the stem and causing the plant to wilt and die. Cutworms are most destructive in late spring and early summer when they are in their larvae phase.

To control cutworms, you can use physical barriers like planting collars, which are typically made of cardboard, plastic, or aluminum foil, and can be placed around the stem at ground level. Another option is to use eco-friendly insecticides that contain Bacillus thuringiensis, a naturally occurring soil bacterium that targets the digestive systems of specific insects.

Hornworms

The tomato hornworm is another insect that can cause cuts on tomato plants. These large green caterpillars can grow up to five inches long and have a distinctive curved horn on the rear end of their body. They feed on tomato foliage and fruit, causing severe damage to the plant. Hornworms use their powerful jaws to cut into the tomato plant as they feed, leaving behind large holes.

To control hornworms, you can handpick them from the plant or use a natural predator like the braconid wasp, which lays its eggs inside the caterpillar's body. The eggs hatch, and the wasp larvae feed on the inside of the caterpillar, eventually killing it. You can also use insecticidal soap or neem oil, which are organic and safe for plants, to eliminate the hornworms.

Sap Beetles

Sap beetles are another type of insect that can cause cuts on tomato plants. These small beetles are known for their attraction to overripe or damaged fruit. They feed on the damaged parts of the fruit and create cracks which can lead to fungal or bacterial infections. Sap beetles feed on the skin of the tomato leaving behind cuts, making the tomato susceptible to further damage.

To control sap beetles, ensure that you harvest any damaged or overripe fruit from the plant as soon as possible. You can also use sticky traps to trap the beetles and reduce their population. Rotating tomato beds each season and properly disposing of any infected plant debris can also help in controlling sap beetles.

Conclusion

In conclusion, several types of insects can cause cuts on tomato plants, including cutworms, hornworms, and sap beetles. These insects can cause severe damage to the plants, leading to the poor yield of tomatoes. It's essential to identify the type of insect that's cutting your tomato plant and take appropriate control measures to prevent a further infestation. By using organic, eco-friendly methods, you can take control of the bug population and enjoy a healthy and delicious tomato harvest.