How to Get Rid of Army Worms in Pasture
Army worms, also known as fall armyworms, are a significant pest that can cause severe damage to pastures and forage crops. These pests are known for their rapid reproduction and ability to destroy large areas of vegetation in a short period. If left unchecked, army worms can lead to significant economic losses for farmers and ranchers. In this article, we will discuss various methods on how to get rid of army worms in pasture effectively.
Identifying Army Worms
The first step in controlling army worms is to identify them. These pests are caterpillars with a greenish-brown color and a distinctive dark stripe along their back. They are about an inch long when fully grown and can be found in large, traveling groups. If you notice a sudden decrease in pasture quality or an increase in the number of caterpillars, it’s likely that army worms have infested your pasture.
Preventative Measures
Prevention is the key to managing army worm infestations. Here are some preventive measures you can take:
1. Rotate crops: Rotating your crops can help break the lifecycle of army worms and reduce their population.
2. Monitor your pasture: Regularly inspect your pasture for signs of army worms, such as caterpillars, frass (caterpillar excrement), or damaged vegetation.
3. Keep pastures clean: Remove any debris or dead vegetation from your pasture, as these can serve as breeding grounds for army worms.
4. Use resistant forage crops: Planting forage crops that are resistant to army worms can help reduce the risk of infestations.
Chemical Control
If you have an established army worm infestation, chemical control may be necessary. Here are some options:
1. Insecticides: Apply an insecticide that is labeled for use against army worms to your pasture. Be sure to follow the label instructions carefully to avoid overuse and ensure the safety of your livestock.
2. Biological control: Some farmers use beneficial insects, such as parasitic wasps and ladybugs, to control army worm populations. These insects lay their eggs inside the caterpillars, which eventually kill the pests.
3. Bt spray: Bt (Bacillus thuringiensis) is a biological insecticide that is effective against army worms. It works by paralyzing the caterpillars’ digestive systems, causing them to starve to death.
Integrated Pest Management (IPM)
Integrated Pest Management (IPM) is an approach that combines various methods to control pests effectively and sustainably. By using a combination of cultural, biological, and chemical controls, you can reduce the impact of army worms on your pasture while minimizing the use of pesticides.
Conclusion
Getting rid of army worms in pasture requires a proactive approach that includes identification, prevention, and control methods. By implementing these strategies, you can protect your pasture and forage crops from the devastating effects of these pests. Remember to always follow label instructions when using pesticides and to consult with a local agricultural extension office for specific recommendations tailored to your region.
