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Facilities Maintenance

The City maintains City Hall, Crown Valley Community Park, the Aquatics Complex and Sea Country Senior and Community Center through a combination of janitorial contracts and City Staff.

Median Island & Slope Maintenance

The City contracts with a private landscape company to maintain all the center median islands and City-owned slopes. Management of this contract is performed by a Senior Public Works Inspector.

Park Maintenance

The City contracts with two private landscape companies to maintain its 541 acres contained in 24 public parks. Management of park maintenance is handled by a Senior Public Works Inspector. Two landscape inspectors assist in this task, as well as perform special projects.

To view a list of parks within our city, their location and their amenities click here.

Sidewalk Maintenance Program

The City repairs public sidewalks on an as needed basis. Please notify the Public Works Department at (949) 362-4337 or via E-mail if there is a public sidewalk in your area that is in need of repair.

Street Maintenance

The City contracts with Charles Abbott Associates, a private firm, to provide street maintenance services. The Contractor provides the City with a part-time street supervisor who coordinates subcontractor work crews on an as-needed basis to repair streets, clean storm drains and channels, install signs, replace broken sidewalks, trim street trees, paint lane lines, pavement legends, etc.

For further information

Contact the Public Works Department by phone at (949) 362-4337 or E-mail.

The Polyphagous Shot Hole Borer (PSHB) Tree Infestation

The City’s tree maintenance company West Coast Arborist will begin on August 15, 2016, removing trees that are infested with the Polyphagous Shot Hole Borer (PSHB). This infestation causes the trees to die. The most common issue and concern is broken branches from the dying trees as they fall and create hazards. Approximately 100 trees at Crown Valley Park and eight (8) trees at the Sea Country Senior and Community Center will be removed.

Drought conditions have worsened this problem and the beetle has already killed thousands of trees in California. As these conditions persist, it is expected that more trees in City parks, median islands, and slopes will succumb to this disease. City staff and contractors will continually examine City-owned trees to assess their viability. Unfortunately, there are no preventive measures that can be taken at this time. By proactively removing the infected trees, the risk of harm from falling trees and limbs, as well as the spread of the disease, will be reduced.

Residents are encouraged to check their trees for signs of infestation and distress.  To learn more Click Here

Reforestation Plan

As trees are removed to combat the disease, the City will begin planting new trees when it is cooler and potential rainfall will help them to get established. The replacement trees will be compatible with the surrounding area and resistant to attacks by the beetles.

Questions can be directed to the City of Laguna Niguel Public Works Department at (949) 362-4377.

Additional Information on PSHB

Beetle and Fungal Complex: The Polyphagous Shot Hole Borer (PSHB), Euwallacea sp., is an invasive beetle that vectors a disease called Fusarium Dieback (FD). The disease stops the flow of water and nutrients in over 137 susceptible tree species, which can lead to the death of individual branches or, in severe cases, the entire tree. It is caused by the fungi that the beetle uses as a food source: Fusarium euwallaceae, Graphium euwallaceae, and Paracremonium pembeum. PSHB attacks a wide variety of host species. The beetles bore tunnels (galleries) in which to lay their eggs and grow the fungi. A closely related Euwallacea species, the Kuroshio Shot Hole Borer (KSHB), has been detected throughout Orange and San Diego Counties. It is physically identical to PSHB and also spreads a fungal disease caused by other species of Fusarium and Graphium.

Description of the pest: Polyphagous shot hole borer (PSHB) and Kuroshio shot hole borer (KSHB) are genetically different invasive species, but morphologically they are indistinguishable. Females are black and 0.07 to1.0 inch (1.8–2.5 mm) long. Males are brown and smaller than females at 0.06 inch (1.5 mm) long. The female tunnels into a wide variety of host trees forming galleries, where it lays its eggs. More females are produced than males. Mature siblings mate with each other so that females leaving to start their own galleries are already pregnant. Males do not fly, but stay in the host tree.

Damage: A host tree’s visible response to a beetle’s attack varies among host species. Staining, sugary exudate (also called a sugar volcano), gumming, and frass may be noticeable before the tiny beetles are found. The beetle’s entry and exit holes, which are about 0.03 inch (0.85 mm) in diameter, can be located beneath or near the symptoms. The abdomen of the female beetle can sometimes be seen sticking out of the hole. Advanced fungal infections will eventually lead to branch dieback. Rapid spread of the beetle and fungi throughout various land-use areas is attributed to the diverse range and quantity of suitable hosts in southern California.

Management: Currently there are no control measures for this pest. Early detection of infestations and removal of the infested branches will help reduce beetle numbers and the extent of disease spread.

Host Species

1. Box elder (Acer negundo)*
2. Big leaf maple (Acer macrophyllum)*
3. Evergreen maple (Acer paxii)
4. Trident maple (Acer buergerianum)
5. Japanese maple (Acer palmatum)
6. Castor bean (Ricinus communis)
7. California sycamore (Platanus racemosa)*
8. Mexican sycamore (Platanus mexicana)
9. Red willow (Salix laevigata)*
10. Avocado (Persea americana)
11. Mimosa/Silk tree (Albizia julibrissin)
12. English oak (Quercus robur)
13. Coast live oak (Quercus agrifolia)*
14. London plane (Platanus x acerifolia)
15. Fremont cottonwood (Populus fremontii)*
16. Black cottonwood (Populus trichocarpa)*
17. White alder (Alnus rhombifolia)*
18. Titoki (Alectryon excelsus)
19. Engelmann oak (Quercus engelmannii)*
20. Cork oak (Quercus suber)
21. Valley oak (Quercus lobata)*
22. Coral tree (Erythrina corallodendron)

23. Blue palo verde (Cercidium floridum)*
24. Palo verde (Parkinsonia aculeata)
25. Moreton Bay chestnut (Castanospermum australe)
26. Brea (Cercidium sonorae)
27. Mesquite (Prosopis articulata)*
28. Weeping willow (Salix babylonica)
29. Chinese holly (Ilex cornuta)
30. Camellia (Camellia semiserrata)
31. Acacia (Acacia spp.)
32. American sweetgum (Liquidambar styraciflua)
33. Red flowering gum (Eucalyptus ficifolia)
34. Japanese wisteria (Wisteria floribunda)
35. Goodding's black willow (Salix gooddingii)*
36. Tree of heaven (Alianthus altissima)
37. Kurrajong (Brachychiton populneus)
38. Black mission fig (Ficus carica)
39. Japanese beech (Fagus crenata)
40. Shiny xylosma (Xylosma congestum)
41. Mule Fat (Baccharis salicifolia)*

City of Laguna Niguel
30111 Crown Valley Parkway
Laguna Niguel, CA 92677
Tel: (949) 362-4300
Fax: (949) 362-4340

A great place to call home.