The California Department of Food and Agriculture placed Sacramento County under a quarantine for the Asian citrus psyllid on Thursday. The insects were found in the Lemon Hill area and have the potential to wipe out local citrus plants. Here are four things to know about the Asian citrus psyllid:1) What is the Asian citrus psyllid?The Asian citrus psyllid, pronounced “sill-id,” is a tiny insect similar in size to a bed bug. They are so small that most times you need a magnifying glass to spot them. The insects can usually be spotted when new leaves are growing on the tips of branches.Young psyllids are also detectable by the species’ signature white wax.2) Why are Asian citrus psyllids a problem?Asian citrus psyllids are carriers for the Huanglongbing (HLB) disease, also known as citrus greening disease. Once a citrus plant becomes infected with the disease, the fruit it produces often looks misshapen and tastes overly sour or bitter. The disease eventually kills the plant.“That disease is fatal to citrus. So once a citrus tree gets that disease it’s done for -- 100 percent fatal,” said Sacramento County Agricultural Commissioner Juli Jensen.3) Where was the bug found?Teams with the CDFA detected the insects in the Lemon Hill area of Sacramento County. So far, none of those bugs carried citrus greening disease. However, the disease was detected in Southern California, in Los Angeles and Riverside. California agricultural experts are particularly concerned about Asian citrus psyllids because the same critters decimated Florida’s commercial citrus industry.“For California agriculture, which we are the No. 1 agricultural state in the nation, it’s a big thing,” Jensen said. “It could be very detrimental to our citrus crop.”4) What does the quarantine mean for Sacramentans?Sacramento County is now 1 of 28 California counties under quarantine for the Asian citrus psyllid. As part of the quarantine, people can not move citrus plants from Sacramento to un-infested counties because they could spread the bugs. However, it is still safe to eat local fruit, according to Jensen.“Remove any stems and leaves and carefully wash the fruit and they can share it, it’s fine,” Jensen said.