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Elongate hemlock scale is found almost exclusively on the underside of conifer needles. Given their small size and inconspicuous appearance, the elongate hemlock scale may appear to be dirt or debris to the untrained eye. Elongate hemlock scale has a host range up to 40 species of conifers and prefers: hemlock, fir, and spruce. It has been detected in Minnesota but not in landscape or natural areas. They can be found hitchhiking on:

• Christmas trees
• Holiday wreaths, bows, and sprays
• Nursery stock

Elongate Hemlock Scale Distribution

Elongate Hemlock Scale Biology

• Christmas trees
• Nursery stock
• Logs
• Firewood
• Recreation equipment, including campers, and lawn chairs

Spongy Moth Distribution

Spongy Moth Biology

Spotted lanternfly is a primary pest of vineyards and nursery stock, with a host range up to 65 plant species. It has not been found in Minnesota. It can be found clinging to most anything including:

• Christmas trees
• Plants
• Smooth building materials like bricks, stone, and metal
• Vehicles, trailers, and freight

Spotted Lanternfly Distirbution Map

Spotted Lanternfly Biology

A major pest of fruit trees and vegetables with a wide range of host plants, BMSB overwinters by invading and hitchhiking on manufactured items. It is established in parts of Minnesota. They are adept at stowing away on:

• Holiday greenery freight
• Cargo containers
• Vehicles
• Recreation vehicles

Brown Marmorated Stink Bug Distribution

Brown Marmorated Stink Bug Biology

Japanese maple scale has a large host range of mostly trees and shrubs. It has not been found in Minnesota. It can be found hitchhiking on:

• Holiday twigs and sprays of shrubs like dogwood and willow
• Nursery stock

Japanese maple scale is widely distributed throughout the eastern United States.

Japanese Maple Scale Biology