When do fall armyworms primarily feed on young plant foliage?

Fall armyworms primarily feed on young plant foliage at night. This nocturnal feeding behavior is an adaptation that helps them avoid predators and harsh environmental conditions. By feeding during the night, they can take advantage of cooler temperatures and increased humidity, which can also benefit their survival and growth. This behavior is essential for their development, especially when they are in their larval stage, as they require a high intake of nutrients to support their rapid growth.

While they may be active at various times throughout the day in other behaviors, significant foliage damage is most likely to occur after sunset and into the early hours of the morning. Understanding this feeding pattern is crucial for effective pest management strategies, as it informs when to apply control measures to protect vulnerable young plants.