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Threats to U.S. Crops

Introduction 

Detecting and identifying abnormalities in plants or crops is essential when bringing control to a potential threat. The following resources provide up-to-date information on a variety of biological agents and pests. Materials cover proper methods for identification, as well as what is being done to combat existing, emerging and potential agents.

CURRENT REGIONAL THREATS 

North Central -- Emerald Ash Borer

Western -- Sudden Oak Death

Multi-Regional -- Soybean Rust


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Top Ten Pests  

Updated list as of February 2007 by the National Agricultural Pest Information System (NAPIS)

1. Sudden Oak Death

2. European Gypsy Moth

3. Imported Fire Ants

4. Asian Longhorned Beetle

5. Japanese Beetle

6. Karnal Bunt

7. Plum Pox Virus

8. Africanized Honeybee

9. Pine Shoot Beetle

10. Purple Loosestrife


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Emerging Pest Problems  

Updated list as of January 2005 by NAPIS

Brown Spruce Longhorn Beetle Guava Fruit Fly Mango Seed Weevil Natal Fruit Fly Nun Moth

Phytophthora kernoviae

Potato Spindle Tuber Viroid Red Palm Weevil Red Ring Nematode

Soybean Rust

Swede Midge

White Mango Scale
  • Pest AlertFlorida Dept. of Ag and Consumer Sciences

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Select Agents  

Select agents are biological agents (viruses, bacteria and fungi) known to exist outside the U.S. and thought to pose a severe threat to American agriculture if introduced here. The Plant Protection and Quarantine program has placed nine of these agents on a watch list because of their potential threat to a number of nationally important agronomic crops, including potatoes, rice, soybeans, corn, citrus, and stone fruit.


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Other Information and Resources  

Emerging Pests -- USDA-APHIS-PPQ
Watch this site for new plant pest issues and links to new pest outbreak situations where regulatory actions are necessary.

University Diagnostic Laboratories -- APSnet
A list of laboratories with contact information found on this site.

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Last Updated:10/2/2009 1:37 AM
 

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