Sep 5, 2013

Two New York counties cleared of plum pox virus

USDA’s Animal and Plant Health Inspection Service (APHIS) recently announced that plum pox virus (PPV) has been eradicated from Orleans and Wayne counties in New York state.

PPV, considered the most devastating viral disease of stone fruit worldwide, severely reduces crop yield and leaves fruit that is blemished and unmarketable. Stone fruit species that are susceptible to PPV include almonds, apricots, cherries, nectarines, peaches and plums, among others.

“Many years of diligent work have led to this success,” said Osama El-Lissy, deputy administrator of APHIS’ Plant Protection and Quarantine program. “We’re lifting federal quarantines in these two counties that had prohibited the planting of disease-vulnerable plants in a combined 24,000-acre area. It had also prohibited existing host plants and plant parts from moving out of regulated areas to other states. We could not have accomplished this eradication without the strong involvement of our partners, including the New York State Department of Agriculture and Markets, the Tuscarora Nation of New York, and the stone fruit industry.”

APHIS determined that the regulated areas met the criteria for deregulation based on three years of negative PPV survey results. These surveys included all orchards and residential properties with host plants within the regulated areas. The survey method included collection of leaves from host plants and testing for PPV, according to APHIS.

Now that the federally regulated areas have been removed in the two counties, PPV-host trees of the genus prunus can once again be planted for fruit or ornamental purposes. In addition, the interstate movement of regulated prunus species plants and plant parts that originated in the previously regulated areas can now be moved interstate. However, state restrictions still apply in those areas. Specifically, PPV-host plant propagation, including budwood collection and nursery plantings, will still be prohibited by New York state regulations.

Portions of New York’s Niagara County will continue to be regulated and surveyed for PPV through a cooperative program. There were no positive detections of PPV in Niagara County in 2012, and to date in 2013, according to APHIS.