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Permanent Link: http://ufdc.ufl.edu/UF00090045/00018
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Title: CitrusLines
Physical Description: Serial
Language: English
Publication Date: 2011
Copyright Date: 2010
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Source Institution: University of Florida
Holding Location: University of Florida
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System ID: UF00090045:00018

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The Mission of UF/IFAS is to develop knowledge in agricultural, human and natural resources a nd to make that knowledge accessible to sustain and enhance the quality of human life. Upcoming Events http://cfextension.ifas. ufl.edu/calendar.shtml The Florida Citrus Grower’s Inst itute Avon Park April 6th Lake County Farm Tour Lake County April 8th Certified Crop Advisor CEU Day Tavares April 13th South Lake/West Orange CHMA Meet ing Winter Garden May 4th Mid Florida Citrus Foundation Field Day Winter Garden May 10th Private Applicator Licenses Kissimmee May 19th CEU Day and Worker Protection Sta ndards (WPS) Kissimmee June 9th COOPERATIVE EXTENSION SERVICE, UNIVE RSITY OF FLORIDA, INSTITUTE OF F OOD AND AGRICULTURAL SCIENCES, Larry R. Arrington, Director, in cooperation with the United States Department of Agriculture, publishes this information to further the purpose of the May 8 and June 30, 1914 Acts of Congress; and is authorized to provide research, educationa l information, and ot her services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orient ation, marital status, national origin, political opinions, or affiliations. Single copies of extension publications (excluding 4-H and youth publicatio ns) are available free to Florida residents from county extension offi ces. Information about altern ate formats is available fr om IFAS Communication Servi ces, University of Florida, PO Box 110810, Gainesville, FL 32611-0810. Well we have made it through another cold winter. As alwa ys I personally am glad that it is coming to an end. Spring time weather is beautiful and it is the best of the year in my opinion. As Valencia harvest starts gaining steam, market prices are sky high. It is good to be in the citrus business as long as you have got fruit. One major push of my extension program recently has been th e formation of Citrus Health Management Areas or CHMA’s. We currently have eight established, the coor dination of Asian citrus psyllid control measures are very important in the protection of your investment. Please try a nd participate in these efforts. Spring 2011 April, May & June

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Other events of possible interest Mechanical Harvesting Field Day (flyer in back) Immokalee April 20th Florida State Horticulture Society Annua l Meeting St. Petersburg June 5-7th Florida Citrus Mutual Annual Meeting Bonita Springs June 15-17 http://www.flcitrusmutual.com /about/2011_conference.aspx Page 2 The objective of the Florida Citrus Pest Management Guide is to assist citrus growers in the identification of pest management options and the selection of a ppropriate control measures. This publication should serve as a reference once it has been determined that control measures might be warranted. It is not intended to repl ace pesticide product labels which contain important usage information and should be immediatel y accessible for reference. Violations of directions for use printed on the label are against Stat e and Federal laws. Care should be taken to select only those treatments best suited for contro l of the specific pest(s) identified as requiring suppression. Products listed in a ll tables have been shown to be efficacious, non-phytotoxic to citrus, and relatively safe on no n-target arthropods and microorganisms when used as directed. However, it is important to real ize that results may not be c onsistent under different environmental, application, and tank mix conditions. As a supplement to each table of recommendati ons, we have provided information on which to base a management decision specific to the target pest, weed or disorder. This information will assist the producer in developing management strategies for a pa rticular set of conditions and possibly identify circumstances under which c hemical intervention may not be necessary. For specific information on pest identification, biology, damage or non-chemical management techniques, refer to Extension Digital Informati on System (EDIS) and other IFAS, USDA, and Florida Department of Agriculture and Consumer Se rvices (FDACS) publications. In addition to the authors listed throughout the Pest Management Guid e, the citrus specialists and agents listed below can provide assistance with pest management information. You can access the most rec ent version anytime at: http://www.crec.ifas.ufl.edu/extension/pest/ For those wanting a hard copy, they can be purchased from the IFAS bookstore: http://ifasbooks.ifas.ufl.edu/p-138-flori da-citrus-pest-management-guide.aspx Introduction -M.E. Rogers, M.M. Dewdney and T.M. Spann 2011 Citrus Pest Management Guide now available

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Demonstration of a sustainable approach to citriculture within a national wildlife refuge in the Indian River Area. Robert C. Adair, Jr, B.A. Norquist and G.K. Ross. Proc. Fla. State Hort. Soc. 122:90–107. 2009. Page 3 Well every year I to try and generate some grower interest in attending the Florida State Horticulture Society annual meeting by reviewing the citrus section best paper award winner. This year’s winner was Bob Adair for his paper on a sust ainable approach to citriculture. Bob works for the Florida research center for agricultural sust ainability (FLaRes) located in Vero Beach. FLaRes entered into a 10 year agreement with the U.S. government to manage the groves located in the Merritt Island national wildlife refuge in 1999. The groves had b een previously managed by private caretakers and run for a few years by the K ennedy Space Center. Du e to its location, the government wanted a “reduction of delete rious inputs” and more sustainable practices implemented to minimize the impact of fertilizers and pesticides. Wo rking with the confines of the federal agencies requirements the FLaRes create d their own “Sustainable Citrus Program” or SCP. They evaluated a number of different pr actices individually and on a holistic approach. In addition, FLaRes utilized and created their ow n GIS tools to maximize management decisions. The authors attributed these tools in “enabling in formed and timely responses to changing tree health, bureaucratic, meteorologic al, biological and market cond itions”. Another emphasis was the culling of marginal land was critically import ant to profitability and sustainability. They redirected focus on fresh fruit production versus ju ice fruit production. When utilizing their SCP, yields decreased 26% but net revenue increa sed 56% versus previous decade when groves were managed in a more conventional manner. The SCP utilized foliar fertilization to reduce the amount of ground applied fertilizer. When applying ground applications, the material utilized was calcium nitrate. Ca lcium nitrate is expensive but is very efficient becaus e it does not suffer losses due to volatilization and is all nitrate nitrogen which is absorbed by roots rapidly. FL aRes utilized low salt c ontent source fertilizer materials for N-P-K which tend to be more expensive bu t foster soil biology. The foliar fertilizer program was also cited as a biopesticide and wa s given credit for suppr ession of multiple diseases in the grove while minimizing pot ential environmental pollutants such as copper. This was a flatwoods grove in whic h root zones are very shallow, the authors stated that managing water drainage was critical. They stated th at tidal variations had a significant impact on ground water table, which was most noticeable during a full or new moon phase. Additionally the authors also evaluated compost materials, used shuttle waste as fertilizer and implemented a low rate herbicide program. They concluded af ter twelve years of im plementing the SCP program that they had reduced chemical and fertil izer inputs, improved so il productivity and increased beneficial insect communities. This is just one example of the type of great information that you can access when you are a member of the Florida State Hortic ultural Society. The annual meeting is packed full of good information on citrus related research projects from around the state. The reason that the society has been around since 1888 and is the oldest horti cultural society in the nation; good info!

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New and revised publications from UF/IFAS Citrus Black Spot: No Longer an Exotic Disease (PP281) Citrus black spot is an emerging fungal disease that affects Florida citrus. Various symptom types occur about a month before harvest. Black spot has the po tential to cause major econo mic damage to the fresh fruit industry and significant yield loss on processing varieties. http://edis.ifas.ufl.edu/pp281 Citrus BMP Implementation in Florida’s Gulf Citrus Production Area: Nutrients (AE474) In 2005 we conducted a survey in cooperation with Gulf Citrus Growers Association and FDACS to quantify the current level of Best Management Practices (BMP) implementation and to identify BMPs that might be adopted if a cost-share program was available. Th is publication describes the survey and discusses the findings regarding nutrient BMPs. http://edis.ifas.ufl.edu/ae474 Exotic Citrus Diseases: Early Detection is the Solution to Protecting Florida Citrus (CH202) This revised illustrated trifold broc hure provides key information abou t Pseudocercospora fruit and leaf spot, sweet orange scab, citrus leprosis virus, citrus variegated chlorosis (CVC), and citrus tristeza virus (CTV) stem pitting. Includes contact inform ation for UF/IFAS Extension citrus experts. http:// edis.ifas.ufl.edu/ch202 Sampling for Asian citrus psyllid (ACP) in Florida (ENY857/IN867) Three techniques are currently in use to sample adult Asian citrus psyllids (ACP). This 7-page illustrated fact sheet by H. A. Arevalo and P. A. Stansly discusses the strengths and weaknesses of each and makes recommendations for routine monitoring of ACP for management purposes. Includes references http:// edis.ifas.ufl.edu/in867 Citrus Economic information Page 4 All of the latest citrus ec onomic and production numbers can be found on the Citrus Research and Education Centers website under the extension section. Here you will find the summary production practices, caretak er rates, packing charges and estimated harvesting costs for Florida citrus. Also included is the cost for resetti ng and planting new trees in a grove. As you know citrus production has been changing rapidly the last few years and that has led to increased costs. How does your production numbers run compared to the IFAS’s budget? Might be wise to review the latest numbers and compare. You can find everything you could ever want to know about citrus prices (with the exception of future fruit prices) here: www.crec.ifas.ufl.edu/extension/economics If you need a printed co py please contact Maggie.

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Page 5 Florida Pile Burner Status In 2005 and 2006 the Florida Division of Forestry in cooperation with the University of Florida IFAS program developed a certification progra m for Florida Pile Burners. The first class was held in Bartow at the Bob Crawford Building in October of 2006. The second session was held at the same location in November of 2006. Many of yo u were participants in these first classes, due to this fact, many of you need to be aware that the Certified Pile Burner designation has a use it or lose it rule in the Florida Administrative Code. In 2009 the Florida Department of Agriculture am ended the open burning rules and regulations to include the pile burner certification program. Florida Administrative Code (FAC) 5I-2 outlines the steps necessary to become certified and also what is necessary to keep that certification. The rule states that a pile burner maintain s their certification if they can show that they have used their certified burn number at least 5 times in the previous five years. The purpose behind the development and implem entation of the Certified Pile Burner program was to raise the overall quality of the open burn ing program in Florida. Any regulatory agency has two possible paths to follow in order to carry out their legislative re sponsibilities to the people of the state of Florida. They can act to enforce the law to t he letter and in this way improve the program’s activities or they can work to educate and enforce where the education fails. The Florida Division of Forestry feels that we serve a ll of our customers best by improving the overall quality of the program through education, and only using the “s tick” of enforcement when absolutely necessary. At this time the Department of Agriculture, Division of Forestry is in the process of sending out notifications to all of those certified pile burner s who received their certi fication in 2006, letting them know if their certification is current or if there is a need for them to complete additional burns before the end of this year to maintain their certification. They are asked to contact Jim Brenner, Fire Management Administrator with the Florida Division of Fore stry, if their certification is in jeopardy so that they can find out what must be done to ma intain their certification. Jim Brenner can be reached by email at Jim.Brenner@freshfromflorida.com or by phone at 850/4886480. This process will be repeated every year at about this time for those that have had their Pile Burner Certification for at least 5 years. The Florida State Horticultural Society (FSHS) Ann ual Meeting will be held in St. Petersburg between June 5-7th. The 2011 Meeting of FSHS will feature presentations of applied research pertaining to horticultural and agronomic crops an d products, and new developments and practices that have been put into use by growers, processo rs, allied industries, and other horticultural interests in Florida. Growers, processors and those in a llied industries are encouraged to present papers. I am the sectional vice president this ye ar, so if you have an interest in sharing some citrus related information please contact me ASAP at raatwood@ufl.edu. Florida State Horticulture Society Annual Meeting June 5-7

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Page 6 Citrus Health Management Area’s –CHMA’s Spray Efforts Recently there were a number of CHMA meetings held in our ar ea. Turn out was not great but growers are talking with one another about these efforts and survey results indicate there is growing interest and momentum to participate. You can find out more about CHMA’s at this website: http://www.crec.ifas.ufl.ed u/extension/chmas/index.shtml Remember we are trying to spray plus or minus one week. The closer to the actual week the better. Upcoming spray dates for different CHMA’s are as follows: South Lake / West Orange CHMA April 4-8th Green Swamp CHMA April 11-15th Central Lake / North Orange CHMA April 18-22nd North Lake / South Marion CHMA April 25-29th Brevard CHMA April 4-8th Osceola CHMA April 11th-15th Volusia CHMA April 4-8th Seminole/East Orange (no map yet) April 11th-15th The material to spray is an organophosphate. The compounds have an IRAC MOA number of 1B. They also tend to have long PHI, so if you will have Valencia fruit on trees you may want to consider using a different pesticide. For curr ent recommendations from UF please see the Pest Management Guide, be sure to read the comm ents section as some pesticides may produce negative effects on other pest populations. South Lake/West Orange CHMA Meeting to discuss aerial application Helena Chemical Company, grower s and I are interested in trying to coordinate aerial application for CHMA’s in our area. So far the South Lake/West Orange CHMA has had the most support in terms of growers working together, so we are going to try to coordinate this CHMA to utilize aerial applications. If you own grove acreage in this CHMA (see map at chma website above) please plan on joining us to discuss and coordina te these efforts. Also please call your neighbors and encourage them to attend the m eeting. Helena will be providing a lunch on May 4th at the Orange County Country Club, it is important that you call me and let me know that you are planning on attending, so I have an accurate head count. Our hope is that if this is successful we could try utilize aerial application in other CHMA’s as well. Eventually we may be able to combine CHMA efforts to cover a larger area in a shorter period of time which would be beneficial in lower ACP populations of the entire region. Updates on this effort to follow.

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Private Agricultural License Review & Exam May 19th 8:30-4:00 A pesticide license is required by any persons who apply or supervise t he application of restricted use pesticides for agricultural production. This certification requires a passing grade of 70% on the General Standards and Private exam. This certification must be renewed every 4 years either by testing or by 8 CEU’s. Ther e will be a review and exam in Kissimmee on May 19th. The review starts at 8:30 AM. There is a $20 charge for the class. CEU’s are available for the training session. It is advisable to purchase the “Applying pestic ides correctly” and “The p rivate applicator training manual” from the IFAS bookstore on-line at www.ifasbooks.ufl.edu or by calling 800-2261764. The private agricultural licens e itself cost $100 which does not have to be paid until after you pass the exam. To register please send in si gn up sheet located at th e back of the newsletter or sign up online at: http://osceola.ifas.ufl.edu/comm_hort.shtml Mid Florida Citrus Foundation Field Day Winter Garden May 10th Please plan on joining us for a field day at the MFCF in Winter Garden. Flyer provide at back of newsletter with form, make sure to sign up. 9:00-9:45 Welcome and discussion of Nutritional demonstration areas-Ryan Atwood 10:00-10:20 Herbicide Trial results-Dr. Steve Futch 10:25-10:50 ACP & Leafminer management: biological pesticide alternatives and resistan ce management. –Dr. Lukasz Stelinski 10:50-11:15 Citrus Health Management Area efforts and Results-Dr. Michael Rogers 30 min. 11:25-11:50 Midsweet and Valencia field trial and new upcoming Valencia release-Dr. Jude Grosser 30 11:55-12:15 Wind speeds within a grove what you need to know for successful spray applications-Chris Oswalt 12:30-1:15 Lunch sponsored by Dow Agrosciences, Syngenta and Bayer Cropscience. Lunch speaker Dr. Jim Graham 1:20-1:45 Peach varieties for Florida-Dr. Jose Chaparro 1:45-2:10 Thinning Florida Peaches-Gary England 2:10-2:35 Proper pruning and Economics of peaches-Dr. Mercy Olmstead 2:45-3:15 Pomegranates for Florida? –Dr. Bill Castle 3:15-3:35 Olives for Fl orida? Richard Williams Page 7 For the last few years the citrus extension agents have held the Fl orida Citrus Grower’s Institute. This years pr ogram is packed full of great speakers and topics. In my opinion it is the most important program of the year, due to the fact it covers a wide range of topics with the latest research based information. Avon Park is centrally located for the entire state’s citrus growing regi on. Most growers in our area should be able to travel 2 hours or less to this venue. A free lunch will be provided. Registration is required. Check in begins at 8A M and the presentations are from 8:30-3:45. Please see the flyer enclosed with the newsletter for more details or call my office at 352-343-4101. For those that have never attended or are interested in view past talks. All presentations have been videotaped and are available to viewers at the citrus agents website: http:// citrusagents.ifas.ufl.edu/ The Florida Citrus Grower’s Institute Avon Park April 6th

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Page 8 Certified Crop Advisor CEU Day Wednesday April 13th For the second time Lake County will be a host site for the Certified Crop Advisor CEU Day which is broadcasted via polycom all over the state. We will be meeting in the conference room whic h is directly adjacent to my office at the Agricultural Center in Tavares. 7:30 AM to 5:30 PM Nutrient Management (5 CEUs) & Pest Management (5 CEUs) On-site host: UF/IFAS Citrus Research and Education Center in Lake Alfred, a nd offered by videoconference. Speakers will deliver their presentation from the site in their respective area. Regular registration is $100 Lunch will be provided at all sites. Visit the CCA Seminar website at: http://www.crec.ifas.ufl.edu/crec_websites/cca/ for the specific program information and registration form as it becomes available. If you are in need of a lot of CEU’s for your pesticide license you are in luck. Every year in June we offer a CEU Day. This year the CEU Day will be held at the Osceola County Extension office in Kissimmee. Registration is required. 321-697-3000 I will also be conducting Worker Protection Standards (WPS) train the trainer on that date. WPS is required training for all agricultural employees (unless related to you or ra nch worker). This training must be conducted usually soon after the hire date. If you are a licensed pesticide applicator you qualify to conduct the training. If you do not have a pesticide license but use unrestricted pesticide in your operation you must have a train the trainer card. This WPS training qualifies for the card and can help those with pesticide licenses understand what type of information needs to be presented. 1:00 – 3:00 p.m. Worker Protection Standards/ Train the Trainer Ryan Atwood Private Applicator CEU’s will also be available in AM sessions. CEU Day and WPS Training Kissimmee June 9th Lake County Farm Day April 8th 8:00 AM 3:00 PM Last year we held a Farm Day to increase La ke County citizens awareness of agricultures importance to our community. This year we will be having this program on April 8th starting at the Agricultural Center at 8AM. Please help spread the word to members of our community who may not be involved with agriculture themselve s but would benefit from participating. Lake County Extension Office/HLC……8:00 – 8:30 am http://lake.ifas.ufl.edu Wilson Training Center ………………….8:45 – 9:30 am http://www.wilsontrainingcenter.com/index.htm Uncle Matt’s Organics…………………...9:45 – 10:45 am http://www.unc lematts.com Silver Springs Citrus………...................11:00 –12:30 pm http://silverspringscitrus.com Lunch Break on your own.…… ………….12:30 – 1:45pm Cherry Lake Tree Farm………………… 2:00 – 3:00 pm http://cherrylake.com Please visit the Lake County Extension website for more information: http://lake.ifas.ufl.edu

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Page 9 Pictures of recent Extension Activities I included pictures of recent activities to your extension program. If you have not been coming, I wanted to show you what you have been missing! Above: Blueberry field day attracts a large crowd (90 people) as the blueberry industry continues to grow in Central Florida. Below: Pictures from recent W. Murcott thinning trial. Pictures from two different treatments. Results to be presented at 2011 F.S.H.S. annual meeting. Thanks to Chris Sutton, Frank Rodgers, Nick Faryna, Tim Lind and Dr. Ed Stover for all their help with this project! Above: 4H youth participated in the 4H Citrus Tree Project at the Central Florida Fair. Thanks to all those who volunteered and donated money to help educate the kids. Below: Lake County Commissioner Sean Parks spent a day visiting with agricultural operations in Lake Co. In the picture below Nick Faryna shows him the Sunsational Packinghouse operation, the picture below that is at Florida Naturals Umatilla packaging facility.

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The Vision for the University of Florida's Institute of Food and Agricultural Sciences (UF/IFAS) is to increase and strengthen the knowledge base and technology for: Expanding the profitability of global competitiveness and sustainability of the food, fiber, and agricultural industries of Florida. Protecting and sustaining natural resource and environmental systems. Enhancing the development of human resources. Improving the quality of human life. Ryan Atwood Extension Agent II Multi County Fruit Crops 1951 Woodlea Rd Tavares, FL 32778 raatwood@ufl.edu Phone: 352-343-4101 Fax: 352-343-2627 Lake CEO/IFAS/UF The 2010 Florida Citrus Industry Research Coordinating Coun cil’s Annual Report has been released and posted. The docu ment can be found on the FDOC Grower web page, the ad dress is http://www.fdocgrower.com/ Think you haven’t received my quarterly newsletter lately or just want to look something up but misplaced an older copy. Archived copies can be found at: http://citrusagents.ifas.ufl.edu/newsletters/ Sweet orange scab has not officially been found in Florida. If or when it is there are some 2(ee) labels available for Syngenta’s Abound and Qaudris Top fungicide products.


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