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Thousand Cankers poses a serious threat to the health of black walnut trees. The Kansas Department of Agriculture, Kansas Forest Service and K-State Research and Extension need your help to help stop the introduction, and to limit the spread, of this disease in Kansas. We are deeply concerned that if it reaches the native range of black walnuts in central and eastern Kansas, we may lose this tree in our urban and native forests. [Select title from Plant Disease Watch List.]

It is now illegal to sell, grow, or plant Callery pear (also known as Bradford pear) in Ohio because of its invasive qualities and likelihood to cause economic or environmental harm. There is no requirement for the removal of existing plants, but the Ohio Department of Natural Resources (ODNR) Division of Forestry encourages control and removal to benefit native forest ecosystems.

See also: Conditional Nonnative Species List

The organisms listed are legally classified as exotic, harmful, or potentially harmful. No person may possess or place them into water of this state except as authorized by the department. 

California registered vessels using fresh water bodies within the state are required to display a “Mussel Fee Paid” sticker on the hull next to the current registration sticker. Paying the Mussel Fee does not entitle vessels to bypass inspections or fees for inspections conducted by individual reservoir owners or managers.

Provides a summary of plant quarantine regulations in the state of Louisiana. These quarantines help safeguard our agriculture and natural resources against the entry, establishment, and spread of environmentally significant pests.