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HomeMy WebLinkAbout2003 09 10 Attached Distributed to the BoardDate: September 10, 2003 ATTACHED DISTRIBUTED TO THE BOARD City of Winter Springs CSty Hall Tree Projr# August 2003 ~,EMouAI~ '~l,qN (S, ~~y~G ~' ~ '~ _ ,. // ;•' ~ , '~~1 ., sl~f ~, ~ :! _ ~~ ~ ~ ~ I~P'ww`' G of ~'o (~~ ~sf ~J = OHK TWEC RE moUAt_ ~S) ~. EuTuZETREE REmovAt.~~~ ' Al3T0 AGG~DENT' , ' ~,rSERSEfl~, Z tJSrH Lt-AT~~ r'~AA1 (3 i m : LTGUST~um TRt^E <3) ®~ QUEEN( PR IM Ti26E ~`7~ ~ . MAGnX~f_TA TK~F ~2~ l - ~E~ ORK-T-~C-E ~ 1) ~ANoo~J -}\Oll..Y ~s~ ~-~-; N£t-~ S~v~NS ~13> ~~o:~-Y t ~ ~ ~ . 0 tiJ . ~wT ~/~ ~~ 0 ~ C Code Enforcement page 2 CITY OF WINTER SPRINGS, FLORIDA 1126 EAST STATE ROAD 434 WINTER SPRINGS, FLORIDA 32708-2799 Telephone (407) 327-1800 Fax (407) 327-6695 3 Ligustrum ( 65 gallon ) 7 Queen Palms ( 65 gallon ) 2 Southern Magnolia ( 65 gallon ) 5 Dahoon holly ( 15 gallon ) 1 Red oak ( 30 ~a~lon ) 13 Nellie R. Stevens Holly ( 15 gallon ) Attached tree removals TOTAL $1,200.00 $2,800.00 $1,300.00 $ 600.00 200.00 $1,300.00 $2,300.00 $9,700.00 Just as a reminder there is still adequate funds in the current tree bank allotment for miscellaneous individual installments of right of ways in front of residential homes where trees have been removed by the city for whatever reasons. Cytospora or perrenial canker of fruit and shade trees Page 1 of 2 Utah Plant Disease Control No. 15 Revised February 1993 Cytospora or Perennial Canker of Fruit and Shade Trees Cytospora Canker or Perennial Canker is one of the most common diseases of fruit and shade trees in Utah. This canker disease is caused by a fungus called Cytospora. There are several species of Cytospora that attack many different hosts, but the symptoms and control are essentially identical for all of them. The host range of Cytospora is broad, including peach, cherry, apricot, apple, poplar, willow, birch, aspen, and many other broadleaf trees. Stone fruits are more susceptible to perennial cankers than are pome fruits. SYMPTOMS Cytospora is considered a weak parasite and invades only weakened or stressed trees. It gains entry through injuries in the bark caused by machinery, sun scald, frost, pruning wounds, broken branches, mechanical shakers, and insect injury. Cankers on trunks or branches are sunken and range in color from brown to gray depending on the host species. The canker expands slowly over a period of months or years and may eventually girdle the branch, causing it to die. The fungus may produce small (1 mm) pimple-like bumps in which black fungal structures called pycnidia are embedded. The presence of pycnidia can be confirmed by slicing the bark with a knife where raised areas are evident. Pycnidia are quite common and obvious on mountain ash, cherry, and birch. During warm, wet weather, brown to orange- colored masses of spores (analogous to seeds) are extruded from the pycnidia in a tendril-like mass. These spores are carried by rain or blown by wind to susceptible sites where they cause new infections. Optimum conditions for Cytospora infec-tions occur in the spring when daytime temper-atures are 60 to 80F. The fungus continue to grow and produces spores during the warm weather months. CONTROL Preventing infection is the best way to control Cytospora. There are no fungicides which are effective in controlling the pathogen once it is in the tree. No single method of control can be used to prevent this disease; therefore, it is necessary to use several of the methods described below to maintain healthy plants. Maintain high tree vigor. Trees should be watered deeply during dry summer months to prevent drought stress. Fertilize in the spring to keep trees vigorous. Avoid late summer applications of nitrogen because it stimulates growth in autumn which does not harden off before winter. Trees stressed with iron chlorosis are particularly susceptible to Cytospora infections. The roots of birch trees are quite shallow and are damaged or killed by high soil temperatures and drought on south or west facing slopes. Keep soil cool and moist by frequent irrigation. Prune out and destroy dead or diseased twigs and branches. Do not leave stubs or narrow crotches. prune on a regular basis so that large cuts will not be necessary. http://www.extension.usu.edu/ipm/disfact/upd 15.htm 8/8/2003 C~tospora or perrenial canker of fruit and shade trees Page 2 of 2 Pruning wounds are susceptible to infections, so prune in the early spring and not when rain is imminent. Treat pruning cuts larger than one inch in diameter with a paint of 1 thiram or 3-10% Copper Naphthenate. Asphalt pruning paints are not effective. An application of benomyl as a spray immediately following the pruning of a fruit orchard may reduce new infections. Benomyl is no longer registered for use on ornamental trees. . Prevent sunscald by painting the trunk of thin-barked trees with white latex paint. The trunks of newly planted trees should be wrapped with burlap orwhite-colored tree wraps to prevent sunburn. These techniques will also reduce winter damage which occurs on the southwest side of trunks. . Control borers and other wood-attacking insects. . Avoid mechanical injury to tree with lawn mowers, lawn trimmers, ladders, shakers, or other equipment. . Woodpiles are an important source of inoculum for the disease. To prevent infections on nearby trees, destroy any wood that appears to have pycnidia. Sherman V. Thomsonl Extension Plant Pathologist Scott C. Ockey/Plant Disease Diagnostician (_isting of commerGal products implies no endorsement by the authors or the Utah State Cooperative Extension Service. Criticism of products not listed Is neither implied nor intended. Persons using such products are responsible for their use according to the current label directions of the manufacturer. PestiGde labels are legal documents, and It Is a violation of federal and state laws to use a pesticide inconsistent with its labeling. The pesticide applicator Is legally responsible for its proper use. Always read and follow the label. http://www.extension.usu.edu/ipm/disfact/upd 15.htm 8/8/2003 Jul 24 03 01:37p V11e~Crest LandscapeMain 4072914966 Vall ~~~~~ Services 24 JuN. 2(103 Mr. l~hael Hinges City o Winter Springs 12E: 1 Tree Consultation Issues Dear u for the opportunity to work with you regarding a case~volving some stressed trees in the Tuscawilla The folio~ving is general information and observations t we made in several sites in the Tusca~villa n Winter We m de several stops in Tuscawilla and noted stress and major 'shack in several Laurel oaks, Cherry laurel and Tu rkey oaks. The 1 lions were all residcntiai areas that are fomtally landsca . Tn many cases, but not all, the aB'ected treys w existing trees m before the neighborhood was built. This could not be etermined for sure with all of the areas we looked In front on on particular residence, wee note a dead tree that had already een cut down and removed, and another, a Laurel o tree, that was s ly stressed and nearly dead. We observed some bro sh-colored lesions oa the stems and large ranches weU as black' coloring. The extent oldie-back was quite severe. I t severe] samples, one of soil, one leaf and small st tissue, and o of a 1"diameter stem from a live portion of the tree (La el oak, Quercus laurifolia). These samples were t off to the Unit/ ity of Florida Plant Pathology Department for testing. T test results came back positive for Cytospora, or canker, whic a fungus disease that eR'ects trees. Included with my anon is the conclusive report from the Universi ~ of Flotida, and recommendations. Rc do 'o Follo g the University of Florida recommendations, the treatm t calls for pruning and removing a tTected tissuesf~n trees. Adeq to watering and fertilizer is a recommendation. In additi OF recommends treating with a copper fungicide ~or control of the 'sense. SumnlarvlConclusio The a c recrnnmendations made by the OF Plant Pathology t may not be entirely practical. It is difficu 4 to enco ge residents to adequately water and fertilize for prevertti and if the disease is already in an nose, it is likel to spread. As f treating with fungicides, that most IdCely wont be practi either since that would require large resources and sate logist and safety problems for the public. My recom~ndati is that diseased trees be removed, as well as the d brie from such , and be taken to a land fill lmmedtately, Of homed 1 y l0 destroy the spores from the disease. flat from di d trees should not be left or mixed-in with other yard and made into compost for mulching or othef ses. P] let me la-ow' if you have nay further questions regarding ' a matter, ar if I have failed to adequately address ur con .Billing for my servioes arc to be paid to VaileyCrest T ee Care in the amount of 5390.00 ~ ~- John .White ISA 'fled arborist Society of Consulting Arborists 4777 Old WintRx' Gardta Road ~ Orlando, www.vs 32811 ~ 407.293.0146 ~ fez 407. p.2 Jul 24 03 01:37p V11eyCrest LandscapeMain 4072914966 07/0 03 11:55 FA3 3SZS9ZS433 P smt Diseabe C1 ~L+C3RIIaA 4F Floridlw E #easion Plwat Disrme Ctieiic BWg 78 wry Road,1'p Hax 1 i 0830 GuiAesvill FL 3261)-Oa3ti C~oopez~itive Extension ~ mstit~a of Food aoet A~~ ~ ~_ ~. Pme~ Pwatolo~ist t: (352) 392-1795 (352) 392-3438 ii: rjm(~mail.ifas.utl,Gdu ~ill• 3 g~~ Otoiwe GanPtry Ad0AW7 ~ ~f Gq~r Coa+~/ P1e~nt z803 4951 Qan John P. Wbite Valley Crest Landscape 4777 Old wintEr 63zden Rd Orlando >•i, 32811 ~!f Orange A9MM Quercus laurifolia, Laurel oak 06/23/2083 0?/0112003 Jolter P. i+fl~i.te Palley C>:est La~dseapo t 4777 Old FiintQr GasdeA Rd Orlando Fl. 32811 Doe 1411kin9 • X07-83b--7970 7102!03 2 l f~b~pora 91ent o~Naer Cytospo sp. -Stem canker >?rnae a rmw~e affected tissue as feasible. ater and fertilize the tsars adegttat y. Application aS a copper fungicide may help to zeduce this disease. • liesis lil~vays 31ow label t'#tes and xecorca+endatiorts hen using ntsticides. test ~a nar ptatici s or pesticides ttew to your facility a small scale to check !os pl t saiQty lore widespread use. 1 PNaw yatr b6f1 Opera ~K 11ite0 a0ove Aor amr q~esdons ~• .' ~~ 1 1 f 1 .• ,~ .~ ••~ .. .,~ .~ .~ ~_ -' M . ~. ~' •~ ~• .~ ,~ ..~ • ~ `[ w "~ • `'# K R ..~ .. . N ~~. ~; ; ~• . '_ • '. ~ f ..• ~ N • • :• ..~