What does grass look like with army worms? This question often arises during the peak of summer when these destructive pests infest lawns and gardens across the United States. Army worms, also known as fall armyworms or sod webworms, are a type of caterpillar that belongs to the family Noctuidae. They are notorious for their ability to cause significant damage to grasses, including Bermuda, Zoysia, St. Augustine, and others. In this article, we will delve into the appearance of grass affected by army worms and discuss the best ways to combat this pest.
The first sign of army worms infestation is often the appearance of thin, browned-out patches in the grass. These patches may start small but can quickly spread if left untreated. When army worms feed, they chew through the grass blades, leaving behind a trail of frayed, shredded, or completely eaten foliage. The grass may appear to have a “torn” or “munched” look, with visible caterpillars crawling around on the ground or in the thatch.
One of the most distinguishing features of grass with army worms is the presence of the caterpillars themselves. These pests are typically greenish-brown in color, with a dark head and a faint yellow or white stripe down the middle of their bodies. They are about an inch long when fully grown and can be quite active, often moving in groups or “armies” as they search for new areas to feed on.
Another indication of army worm infestation is the presence of silk webbing on the grass. These caterpillars create a network of silk threads that they use to connect grass blades and create a protective barrier around their feeding area. This webbing can be seen as a silken mat covering the grass, which may be more pronounced in heavily infested areas.
To effectively manage army worm infestations, it is crucial to act quickly. Once you notice the signs of army worms, such as brown patches, shredded grass, and the presence of caterpillars, it is essential to treat the affected area promptly. Here are some steps you can take to control army worms:
1. Identify the pest: Confirm that the damage is caused by army worms, as other pests can also cause similar issues.
2. Monitor the situation: Keep an eye on the affected area to determine if the infestation is spreading and if additional treatment is necessary.
3. Use an insecticide: Apply an insecticide labeled for army worms to the affected area. Follow the instructions on the product label carefully to ensure proper application and dosage.
4. Mulch and debris removal: Remove any mulch or debris from around the grass, as these can provide shelter for army worms and their eggs.
5. Preventative measures: To prevent future army worm infestations, maintain a healthy lawn by mowing regularly, watering appropriately, and fertilizing as needed.
In conclusion, grass with army worms will exhibit signs of damage such as thin, brown patches, shredded grass, and the presence of greenish-brown caterpillars with a dark head and yellow or white stripe. By taking prompt action and using appropriate control methods, you can protect your lawn and garden from the devastating effects of these pests.
