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Riverside/San Bernardino
The strategy for all regions is to minimize the number of extra pesticide treatments applied for ACP in order to preserve IPM programs for other pests and reduce the risk of resistance developing.
Riverside/San Bernardino area-wide program: ACP is well established in Riverside and San Bernardino Counties. The area-wide program for this region consists of a coordinated application in winter to kill overwintering adults and to protect spring flush, and two coordinated sprays during July-October when populations are at their highest. Additional grower choice treatments are encouraged in between coordinated treatments. Whenever treating for another pest, choose a pesticide that will also control ACP. For example, the Fujimite, Delegate, Lorsban and Movento treatments (shown in red) applied for common pests would assist with ACP control.
Special Notes for Riverside City/San Bernardino Growers
- The goal is to suppress psyllids below 0.5 nymph/flush.
- Urban areas infested with ACP can be a source of psyllids for groves.
- HLB has been found in residential citrus trees in Riverside Co. (see map for locations) greatly heightening the need for psyllid control.
- If sampling demonstrates psyllid populations are increasing ahead of the timing of a coordinated treatment, then apply a full orchard or border spray (if psyllids are only found on the borders) in addition to the coordinated treatment.