The California Department of Food and Agriculture has planned to begin treatments for Asian citrus psyllid in Santa Ana on Sept. 8.

Using a two-pronged approach, crews will visit properties only one time as long as no additional psylla are found, according to a news release.

Crews will treat citrus trees and other host plants with a foliar applicaiton of the pyrethroid Tempo, which contains the active ingredient beta-cyfluthrin.

At the same time, they'll inject Merit, which contains the systemic imidacloprid, into the soil surrouding those same plants.

The California Environmental Protection Agency is overseeing the treatments.

The treatments were prompted after traps picked up dozens of Asian citrus psylla in Santa Ana.

State agricultural leaders as well as the citrus industry remain concerned because the psyllid can spread citrus greening, a bacterial disease lethal to citrus trees but harmless to humans.

Asian citrus psyllid were discovered in Florida in 1998, and greening was confirmed in 2005. Both the pest and greening, also known as huanglongbing or HLB, are now found in all of that state's 30 citrus-producing counties.

Psylla also have been found in Mississippi, Texas, Alabama, Georgia, Louisiana and South Carolina. In addition, greening has been confirmed in a handful of residential properties in Louisiana, Georgia and South Carolina.

For more information on the Asian citrus psyllid and huanglongbing visit