Asian citrus psyllid (ACP) are at the mercy of their host (citrus) for survival. They need flush to lay eggs and for the nymphs to develop. Prior to HLB. the majority of flushing had been fairly predictable and occurred in the early spring and late summer. https://www.spidertattooz.com/Dystopian-Wars-Empire-Starter-Set-Faction-Battlefleet/