What is a common pest affecting woody ornamentals in nurseries?

Aphids are indeed a common pest affecting woody ornamentals in nurseries. These small, soft-bodied insects feed on the sap of plants, which can lead to stunted growth, yellowing of leaves, and even plant death if infestations are severe. In addition to directly damaging the plants, aphids can also excrete a sticky substance known as honeydew, which can attract other pests and lead to sooty mold development, further compromising the health of the plants.

The recognition of aphids as a key pest is important for nursery operations, as early detection and management are crucial in protecting the plants. Effective control measures often include the use of insecticidal soaps, introduction of natural predators, and maintaining overall plant health to prevent infestations. Understanding the biology and behavior of aphids allows nursery technicians to implement strategies to mitigate their impact effectively.