TreeCheckIndependent · unofficial

Is San Bernardino County in the citrus quarantine?

Partly inside · about 2%

Partly — about 2% of San Bernardino County is inside the citrus quarantine.

Inside (all or nearly all)

Partly inside — check your address

Outside the quarantine

Adelanto, Apple Valley, Baker, Barstow, Big Bear City, Big Bear Lake, Big River, Bluewater, Fort Irwin, Hesperia, Homestead Valley, Joshua Tree, Lake Arrowhead, Lenwood, Lucerne Valley, Lytle Creek, Mentone, Morongo Valley, Mountain View Acres, Needles, Oak Glen, Oak Hills, Phelan, Piñon Hills, Running Springs, Searles Valley, Silver Lakes, Spring Valley Lake, Twentynine Palms, Victorville, Wrightwood, Yermo, Yucaipa, Yucca Valley.

What the quarantine rules generally say

Not an official determination

  • The quarantine covers citrus plants and their relatives (for example lemon, lime, orange, kumquat, curry leaf and orange jasmine): the plants, cuttings, leaves, stems, budwood and seed for planting. (3 CCR 3439 (C.1))
  • Citrus fruit with no leaves or stems attached is not one of the covered items. (3 CCR 3439 (C.1))
  • Covered plants and plant parts may not be moved out of the quarantine area unless they meet federal requirements. (3 CCR 3439 (D.1))
  • Inside the quarantine area they may only be moved if they were grown in an approved insect-proof structure under a compliance agreement, or certified. In practice: don't share, trade or move citrus plants, cuttings or leaves. (3 CCR 3439 (D.2))
  • Citrus green waste and equipment used on citrus must be cleaned or treated before moving; processed green waste may go directly to a landfill or licensed compost facility inside the area. (3 CCR 3439 (C.3, C.4, D.6))
  • Nursery plants allowed to move within the area carry a label saying they may not leave the quarantine area. (3 CCR 3439 (D.4))
  • A new quarantine area is at least a 5-mile radius around a tree that tested positive, so the line moves when new trees are found. (3 CCR 3439 (B.1.b, B.3))

Confirm with CDFA: 1-800-491-1899.

Tree looks sick? Who to call in San Bernardino County

What to do if your tree looks sick →

Source: CDFA county commissioner contact list (checked October 9, 2026).

Other counties: Orange, Los Angeles, Riverside, San Diego, Ventura, Imperial