UC Scientists worked with CCQC to receive a Section 18 for the use of Bactericides against HLB infection. Once that goal was achieved, the team drafted an advisory recommending that Southern California Citrus growers begin using Bactericides as part of their treatment program.
Their recommendation states and CCM concurs, that growers should do a minimum of 3 treatments during the year. Bactericides alone do not fully guard citrus trees against HLB, but do help as a protective, pre-infection treatment. For example, the first treatment recommended would be a coordinated late winter/early spring treatment to reduce overwintering populations of adult psyllids and bacterial infection. The second treatment would be an ACP-effective insecticide during spring or summer reducing potential bacterial infection. This could be incorporated as growers focus on other pests. The third treatment could be placed late summer/fall during the months of August-November, as this will target ACP when populations are the highest.