Huanglongbing is a disease caused by the Asian Citrus Psyllid, an insect the size of an aphid.
Carried from Asia or India, the Asian citrus psyllid was first seen in Florida in 1998. By 2014, Huanglongbing (HLB) had caused $4.6 billion in damage to Florida's citrus crops and can kill a tree within 5 years of infection. There is no known cure at this time.
Preventing the spread of HLB is critical to protecting citrus trees worldwide. In this effort, quarantines are in place that prohibit moving citrus fruit trees, leaves, and stems out of the quarantine area. Check this map to see if you are in or near an area of concern:
Signs of infestation and infection include:
Like other psyllids, the Asian citrus psyllid produces honeydew, which attracts ants and provides a growth medium for sooty mold. Ant traffic can be blocked wth the use of sticky barriers.
Other ways you can prevent the spread of this disease:
If you suspect or see signs of the Asian citrus psyllid or Huanglongbing disease, immediately contact the CALIFORNIA DEPARTMENT OF FOOD AND AGRICULTURE HOTLINE: 1‐800‐491‐1899
I hope this information inspires you to grow more of your own food. You can ask your garden questions on my Home page.