Is Orange County in the citrus quarantine?
Partly inside · about more than 99%
Partly — about more than 99% of Orange County is inside the citrus quarantine.
Inside (all or nearly all)
- Aliso Viejo
- Anaheim
- Brea
- Buena Park
- Costa Mesa
- Coto de Caza
- Cypress
- Dana Point
- Fountain Valley
- Fullerton
- Garden Grove
- Huntington Beach
- Irvine
- La Habra
- La Palma
- Ladera Ranch
- Laguna Beach
- Laguna Hills
- Laguna Niguel
- Laguna Woods
- Lake Forest
- Las Flores
- Los Alamitos
- Midway City
- Mission Viejo
- Modjeska
- Newport Beach
- North Tustin
- Orange
- Placentia
- Rancho Mission Viejo
- Rancho Santa Margarita
- Rossmoor
- San Clemente
- San Juan Capistrano
- Santa Ana
- Seal Beach
- Silverado
- Stanton
- Trabuco Canyon
- Tustin
- Villa Park
- Westminster
- Williams Canyon
- Yorba Linda
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 Orange County
- Orange County Agricultural Commissioner: (714) 955-0100
- CDFA Pest Hotline (free): 1-800-491-1899
What to do if your tree looks sick →
Source: CDFA county commissioner contact list (checked October 9, 2026).
Other counties: Los Angeles, Riverside, San Diego, Ventura, San Bernardino, Imperial