'Usda aphis ppq' presentation slideshows

Emerald Ash Borer: The Basics

554 views • 38 slides

Species that Cause Change in the Environment: Beneficial vs. Harmful

Species that Cause Change in the Environment: Beneficial vs. Harmful. Questions to be answered. What are some native species that are beneficial to the environment? What are some introduced species that are beneficial to the environment?

382 views • 26 slides

Green Oak Tortrix Tortrix viridana

Green Oak Tortrix Tortrix viridana. Green Oak Tortrix. Other common names: European oak leaf roller, oak leaf roller, green oak leaf roller, pea-green oak curl moth Pest of Oak species Native of Europe, Northern Africa, Iran, and Israel Not yet present in the United States.

251 views • 23 slides

YOUR MOVE GYPSY MOTH FREE .COM

345 views • 21 slides

Tremex woodwasp Tremex fuscicornis

Tremex woodwasp Tremex fuscicornis. Tremex woodwasp. Native of Europe and Asia where it feeds only on dead or diseased trees. Found in Chile in 2000. Attacks healthy trees. Agricultural loss of lumber and windbreaks. Wasps infect trees with phytotoxic fungus ( Cerrena unicolor ).

216 views • 21 slides

USDA PRECLEARANCE

467 views • 20 slides