Which pest is particularly serious for ornamental evergreens?

Bagworms are particularly serious pests for ornamental evergreens due to their feeding habits and lifecycle. The larvae of bagworms create distinctive protective cases made of silk and plant material, which they carry around as they feed on the foliage of trees and shrubs. This feeding can lead to significant defoliation and stress for the plants, especially if infestations are large.

Evergreens, which often have limited ability to regenerate foliage compared to deciduous plants, can suffer long-term damage or even die from severe bagworm infestations. Additionally, bagworms often go unnoticed until considerable damage has occurred, making early detection and management crucial.

Other pests, while they impact many types of plants, do not specifically target ornamental evergreens as aggressively or cause the same level of damage in their feeding practices as bagworms do.