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HomeMy WebLinkAbout1997-06-24 ARC Regular Meeting Agenda , '`"'` `'� AGENDA PALM DESERT ARCHITECTURAL COMMISSION TUESDAY - JUNE 24, 1997 12:30 P.M. - COMMUNITY SERVICES CONFERENCE ROOM 73-510 FRED WARING DRIVE * * * * * * * * * � * * * * * * * * * * * � * * � * � * * � * � * � * � * � * * * * * � � * � * � � * * I. CALL TO ORDER II. APPROVAL OF MINUTES: June 10, 1997 III. ORAL COMMUNICATIONS: 1. Any person wishing to discuss any item not otherwise on the agenda may address the commission at this point by stepping to the lectern and i�ing his/her name and address for the record. Remarks shall be limited to a maximum of five minutes unless additional time is authorized by the commission. 2. This is the time and place for any person who wishes to comment on non-hearing agenda items. It should be noted that at commission discretion,these comments may be deferred until such time on the agenda as the item is discussed. Remarks shall be limited to a maximum of five minutes unless additional time is authorized by the commission. IV. CASES: A. Final Drawings: 1. CASE NO.: 4846 SA APPLICANTSAND ADDRESSI: RIOFINE NEON for WISHES OF PALM DESERT (TOYS), 3500 Tachevah Drive, Suite D, Palm Springs, CA 92262 NATURE OF PROJECT/APPROVAL SOUGHT: Approval of business identification signage LOCATION: 73-567 Highway 111 ZONE: C-1 • `w...r' ''wrr'v AGENDA ARCHITECTURAL REVIEW COMMISSION JUNE 24, 1997 2. CASE NO.: 4850 SA APPLICANT .�AND ADDRESSI: CHURCHILL MANAGEMENT for RANGONI OF FLORENCE SHOES, 73-061 El Paseo, Suite 205,Palm Desert, CA 92260 NATURE OF PROJECT/APPROVAL SOUGHT: Approval of awning with signage LOCATION: 73-151 El Paseo, Suite F ZONE: C-1 3. CASE NO.: PP 97-7 APPLICANT (AND ADDRESSI: GARY LOHMAN/TAD SMYTH for THE ANDREW PIERCE CORP., 75-570 Mary Lane, Indian Wells, CA 92210 NATURE OF PROJECT/APPROVAL SOUGHT: Approval of exterior modifications to existing structure LOCATION: 44-835 Deep Canyon ZONE: R-1 4. CASE NO.: PP 96-13 APPLICANT�AND ADDRESSI: CARDIFF LIMOUSINE, 77-700 Enfield Lane, Suite B, Palm Desert, CA 92211 NATURE OF PROJECT/APPROVAL SOUGHT: Approval of final working drawings LOCATION: 75-255 Sheryl Drive ZONE: S.I. 2 ' `v� w+r" AGENDA ARCHITECTURAL REVIEW COMMISSION JUNE 24, 1997 5. CASE NO.: PP 95-7 APPLICANT�AND ADDRESSI: B. G. JONASSON & ASSOCIATES for DErIISE ROBERGE,44-655 Benito Circle,Palm Desert, CA 92260;McFADDEN &McINTOSH ARCHITECTS, 74-929 Larrea, Suite lA, Palm Desert, CA 92260 NATURE OF PROJECT/APPROVAL SOUGHT: Approval of final working drawings,with landscaping, for restaurant building LOCATION: 73-995 El Paseo ZONE: C-1 B. Preliminary Plans: 1. CASE NO.: C 97-8 APPLICANT�AND ADDRESSI: BRINKER INTERNATIONAL c/o TRG INC. for RAMONO'S MACARONI GRILL, 1224 E.Katella Avenue, Suite 105, Orange, CA 92867 NATURE OF PROJECT/APPROVAL SOUGHT: Preliminary approval of revised building elevations,patio addition, and signage LOCATION: 72-920 Highway 111 ZONE: C-1 3 , ,�; � AGENDA ARCHITECTURAL REVIEW COMMISSION JUNE 24, 1997 C. Miscellaneous: 1. CASE NO.: APPLICANT (AND ADDRESSI: SOUTH WEST CONCEPTS for TERESA& JACK HENNESSEY RESIDENCE, 82-723 Dr. Carreon Blvd., Indio, CA 92201 NATURE OF PROJECT/APPROVAL SOUGHT: Approval of tan colored precision block 6'high garden wall LOCATION: 74-399 Old Prospector Trail ZONE: R-110,000 V. ADJOURNMENT: ****�**��*�r�**�r***********�r*�**�*�****�*�*�*�*�**�*�*�*�**�***�***�*****�****�*** DECLARATION OF POSTING I, Donna C. Bitter, of the Community Development Department of the City of Palm Desert, do hereby declare that the foregoing agenda for the Architectural Review Commission meeting of Tuesday, June 24, 1997, was posted on the bulletin board by the outside entry to the Council Chamber, 73-510 Fred Waring Drive, Palm Desert, on Friday, June 20, 1997. : June 20, 1997 Y-��'�2,��` � �y1r�j21,�.� �� DONNA C. BITTER Senior Office Assistant City of Palm Desert, California 4 � UPDATE ON OLEiRyNDER LEAF SCORCH - A N�`p."O�V PROBLEM J. Michaei Henry', Cheryl Wilen2, Alex Purceil3, and Marcella Grebus4 'University of Ca/ifo�nia Cooperative Extension, Ri.verside and Orange Counties 21150 Box Springs Road, Moreno Va/ley, CA 92557 �University of California Cooperative Extension , Southem Region, Statewide lPM Project 5555 Overland Ave., Bldg. 4, San Diego, CA 92123 'Dept. of Entomology, University of Ca/ifornia; Riverside, CA 92521 'Dep�. of Plant Patho%gy, University of California, Riverside, CA 92521 . A decline of oleanders was first noticed in the Palm Springs-Indio area of Riverside County in 1993. The incidence of the disorder has increased dramaticaily east of Paim Springs such that some landscape managers have abandoned any plans to replant oleander. Cai Trans also observed die-back of oleander along highways in the Coachella Valley near Indio. The same oleander p�oblem was also discovered in Irvine in 1995. Oleanders die within about two years from the first appearance of symptoms. A new strain of the bacteria, Xyle/!a fastidiosa, is the most likely candidate to cause the disorder, and we have started experiments to prove this and to test whether it causes dis- ease in oleander. Until this proof, known as Koch's postulates, is completed we cannot be sure that the disease is caused by this organism. UC Berkeley scientists inoculated plants in November 1995, but leaf scorch symptoms had not appeared by June 1996. However, the Xyle/la bacteria have been recovered from these test plants. Additional testing is under way at UC Riverside to determine the causal agent of this disease, but until symptoms ap- pear and the o�ganism is recovered from the test plants, a positive relationship between the bacteria and the disease cannot be established. In California, X. fastidiosa causes Pierce's disease of grapevines, alfalfa dwarf, and almond leaf scorch. In the eastern U.S., various strains of X. fastidiosa cause phony peach disease and leaf scorch diseases of sycamore, elm, mapte, oaks, mulberry and other trees. These diseases are most severe in states along the Gulf of Mexico and the Atlantic coast as far � north as coastal Virginia. Another strain is causing a new disease, citrus variegated chloro- sis in Brazil. The disease had spread from a few trees in 1987 to over 30°� of the trees in the major citrus regions by 1995. X. fastidiosa can infect many species of plants without causing disease symptoms. Such plants are reservoirs of the bacteria. In most of these�ymptomless hosts, the bacteria oc- curs only in localized areas of the planYs xylem system. X. fastidiosa is vectored by sucking insects that feed an xylem sap. They can acquire the bacterium by feeding on infected symptomiess plants or on diseased plants. In Califarnia, certain leafhoppers called sharpshooters are the most important vectors, but spittlebugs are also vectors. In 1990, a leafhopper not seen befocez:in- California, but common in the southeastern U.S., was discovered in Orange County. Since then it has been found to be abundant in citrus from Ventura County to western Riverside County. It occu�s most commonly on citrus, crape myrtfe, peach and several other species of woody ornamentals. , 3 . - �.,r. '.rY++' � The leafhopper was identified by the Califomia Department of Food and Agriculture as � Homalodisca coagu/ara, the glassy-winged sharpshooter. This species is considered to be the prime vector of X. fastidiosa to peach and grape in George, Florida, and other southern states. The newly introduced glassy-winged sfiarpshooter leafhopper seems to be closely associ- ated with the rapid spread of the new oleander (eaf scorch disease in Orange County, be- cause it is present in large numbers on oleander and has been shown to be carrying X. fas- tidrosa. Since this insect is such an efficient vector of X. fasiidiosa to peach and grape in Fiorida and Georgia, it may become more important in California on these crops as well as oleander. The glassy-winged sfiarpsfiooter appears to readily feed on and occasionaily lay eggs on oleander. This trait could allow. its dissemination into Northern California along highway plantings of oleander. In addition, many species of plants in comme�cial nurseries in Southern California could harbor eggs of the glassy-winged sharpshooter that hatch after being shipped to areas where this insect does not yet occur. Other common species of sharpshooters that could vector X. fastidiosa to oleanders in- ctude a California species of Homalodisca, the smoke tree sharpshooter iyomalodisca lac- erta), which is a native of the Mojave Desert region in eastern Rive�side and San Bernardino Counties, and the blue-green sharpshooter (G�aphocepha/a atropunctata) common through- out coastal California. This species is considered the most important vector for Pierce's disease of grapevines in coastal grape-growing areas from San Diego through Mendocino Counties. Currentfy, a team of 14 researchers at UC Riverside and UC Berkeley have begun to study the vectors, the bacterial pathogen and the reactions of a variety of crop and ornamental plants to the new strain of X. fasiidiosa. Two grant proposals have been submitted, and funding, if received, will be available in September 1996. This new pathogen is difficult to work with because it is very slow to show symptoms in woody piants and is mo�e difficult to culture than most plant pathogenic bacteria. A symposium on the new oleander strain was held in March 1996 at UC Riverside. Univer- sity, state and county agencies (CDFA, Ag. Commissione� and Cal T•ans), and industry rep- resentatives learned about current knowledge of the oieander problem and discussed re- search nesds. Since that time, preliminary findings by CDFA plant pathologists have re- veaied that a nursery grower in Tustin, CA had oleander nursery stock infected with X. fas- tidiosa. More recently, a nursery in northern Los Angeles County afso was found to have infecied oleanders. � It is hoped that many of the questions about this new strain of X. fastidiosa can be an- swered in the coming year, but it doesn't appear that a "quick fix" is likely. - -- __,t - � Questions of Economic and Policy Importance • 1. Costs of losses of ofeanders? iremoval, replacementl a) In Southern Catifornia ' 4 _ , � ''�+r' "� b) If new strain also becomes serious in Northern California highways, parks, goif courses, home landscapes, etc. � 2. Nursery industry consequences? a) Loss of oleander as a crop or a need for more to replace lossesl - b) Quarantine restrictions on shipments (to prevent introduction of new sharpshooter or disease to other parts of California)? c) Certification standards for nursery crops7 3. Consequences for other crops? . a) Grape industry -- increased threat of Pierce's Disease? Highe� rates of spread? Ap- pearance in areas where now absent or rare? b) Peach and stone fruits (prune, cherry, apricot, etc.) � c) Citrus? d) Other trees? (elm, sycamore, mulberry, maple, oaks, or other native species) e) Quarantine restrictions by other countries on shipments of fresh fruit/produce? 4 - _"_ ._....,� 5 r I� Shar shoote .S reads Olean �r �eaf Scorch . _ p �. p �. ' By Hekn M.Swnt c the recent Desen Honiculrure drought or salt damage,with leaves taking on The glassy-winged sharpshooter is com- Conference in Tucson, extension a scorched appruance. Evenrually, the dis- mon in Southeascern states from Florida entomology specialist Dave ease moves to major branches and the trunk. through eastern Texas,and was thought to be Langston was discussing IPM procedures Leaves drop off in droves and che planc imponed in the egg stage on plants. It was and mentioned aphids on oleanders. "What declines and dies. Mature planu can die found to be a vector of Xylella fastidiosa,and kills oleanders?" he asked. "Noching!" was within a year after the disease is initially is closely associated with the rapid spread of the answer.The crowd chuckled in apprecia- detected. Healthy plants in good growing oleander leaf scorch. The shazpshooter has tion,and Langston went on to say chat aphid conditions might last as long as two years, now been detected as far north as Uentura conuol on oleanders was really not necessary. but eventually succutnb. Counry. Unfortunately, though, the answer to The disease was firsc nociced in the Palm Xylella fastrdiosa has more than 100 hosts, Langston's question in California's �rings area in 1994. It is spread by at least many oF which are commonly planted Coachella Valley is "bacterial leaf scorch." three insect vectors: the cleat or glassy- throughout the Southwest. Host plants This disease is killing plenty of oleanders and winged sharpshooter (Homalodrsca coagula- include grapes,almonds,elm,oak,sycamore, killing them fast. In fact, planting oleanders ta), the smoketree shupshooter (H. lacerta) hairy crabgrass, perennial ryegrass and crepe in the area is no longer recommended and it and the blue-green shazpshooter (Graph- myrde.There are diffetent strains of the dis- is estimated that wichin a few years,oleander ocephala atropunctata). All are rypes of ease, and so far, the strain that causes death will no longer be a viable plant anywhere leaf�hoppers.The glassy winged sharpshooter in oleanders does noc seem of affect other from Palm Springs to che Salton Sea. is a new insect pest in California,first found plancs in a similar manner. Researchers are The disease is caused by a xylem-limited in Orange Country in 1990. It was found now trying to find out whecher the strain baateria (XLB), specifically Xyle!!a fastidiosa. primarily on citrus, crepe myrtle, peach and that decimates oleanders might also affect XLB is a single-cell parasitic organism that other ornamental plants. It eventually ocher crop plants. grows and multiplies in the plant's xylem appeared in such large numbers thac ics Oleander scorch was also discovered in (water transport system).The xylem tissue is eucrement gave the plants a "whitewashed" residential and commercial azeas oF Tus�in eventually plugged up and water movement appearance. However, it did not appear to abouc two years ago. Ic has spread in a circle is prevented. The symptoms resemble cause any substantial damage to the plants. from the shopping center where it was first Phil Phillips, UC Area IPM advisor in found and now covers about two miles. Ventura county,has found parasitic wasps in Symptoms show up during hot summer the eggs of the glassy-winged sharpshooter. weacher and the disease appears to kill the Serguei Triapitsyn,a specialist on leafliopper plants at the same rate as in Palm Springs. egg parasites at UC Riverside, has outlined Scientists fear that the disease will be spread plans to search for natural enemies from che along California's 2,100 miles of highways. native range of the glassy-winged sharp- Replacing only the oleander plantings on shooter.The most suitable of these could be highways is estimated at $52 million. This imponed into California to try and help does not include the coundess plancs at resi- control the spread of the insect. dencial, commercial, municipal and golf The oleander is a landscape staple in the wurse sites t�troughout the state. Southwest for good reason. If it were a rari- Since the disease actually is contained ry> it would be sought after because of its within the plants' cells, there ue no chemi- reliable flowering, adaptabiliry,variations in cal controls. Extension specialists say that Form and color and resistance to pests and the most important culrural control is to diseases. Most landscape professionals take maintain good planc health. Removing this plant for granted, and many even dis- infected parts of the plant may slow down like it because it is so common. However, rhe disease, but will not stop it. It is not there is a real possibiliry that the oleander's thought to be transmitted on pruning tools. days might be numbered,which would be a Specialist also suggesc that limiting alternate great loss to our plant palette. In the future, hosc plantings may help minimize the inci- this reliable landscape standard might jusc dcnce of this disease. be a memory. �