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Treasure Coast citrus notes
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Permanent Link: http://ufdc.ufl.edu/UF00091718/00017
 Material Information
Title: Treasure Coast citrus notes
Physical Description: Serial
Language: English
Creator: St. Lucie County Extension, Institute of Food and Agricultural Sciences, University of Florida
Publisher: St. Lucie County Extension, Institute of Food and Agricultural Sciences, University of Florida
Place of Publication: St. Lucie, Fla.
Publication Date: 2011
Copyright Date: 2010
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Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
System ID: UF00091718:00017

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UF/ IFAS/ St. Lucie Extension 8400 Picos Road, Suite 101, Ft. Pierce, FL 34945 ( 772 ) 462 1660 http://stlucie.ifas.ufl.edu Treasure Coast Citrus Notes March 2011 New Psyllid Predator Wasp from Mexico? that is being used in Mexico to battle the Asian citrus psyllid. Dr. Michael Rogers, entomologist at the CREC advises that the insects described in the article are in fact the gree n lacewing and Tamarixia radiata both of which are well established in Florida. Unfortunately, populations of either insect were not high enough to provide anywhere close to the ACP control required for HLB management and have been further reduced by pesticide applications intended for the ACP. The story was focused on efforts by the Mexican government to rear these beneficial predators for release in groves where growers could not afford or were reluctant to apply pesticides for ACP control. Insi New Psyllid Predator Wasp from Mexico? Pesticide Resistance and Resistance Management 2011 Citrus Pest Management Guide USDA Horticultural Research Laboratory Open House General Standards (CORE) CEU Program Mechanical Harvesting Field Day 24c Label for Belay 50WDG Insecticide CCA CEU Day, April 13, 2011 Pesticide Applicator Training & Testing (General Standards & Aquatic)

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P esticide Resistance and Resistance Management and utilize the Pesticide Resistance and Resistance Management section of the 2011 Florida Citrus Pest Management Guide. Autho red by Drs. Michael Rogers and Megan Dewdney, this section initially describes how populations of animals and plants are able to respond to sustained changes or stresses in their environment in ways that enable the continued survival of the species. In th e past, Florida citrus growers have seen greasy spot resistance to Benlate and rust mite resistance to dicofol. Currently, we know that the strobilurin fungicides (Abound, Gem, Headline, Quadris Top) have potential for resistance development and that Agri Mek tolerance in c itrus rust mite is a concern. Growers have also reported several weed species that seem to be resistant to glyphosate herbicides. Effective control of the Asian citrus psyllid to manage the spread of HLB has necessitated the application of a number of insecticidal sprays throughout the year. Although we are learning how to manage psyllid populations to subsequently reduce the number of sprays required, we still have to make a significant number of applications to be effective This makes a working pesticide application rotation so v ery important. The per acre costs of pesticides registered for use against the ACP vary considerably, and the temptati on to use the relatively inexpensive products several times in a row should be resisted. The Pesticide Resistance and Resistance Management chapter includes tables of Insecticides and Miticides ; Fungicides ; and Herbicides used in Florida c itrus g rouped b y mode of a ction The chapter also recommends several operational procedures to help to avoid pesticide resistance to miticides insecticides, fungicides and herbicides: 1. Never rely on a single pesticide class (organophosphate, pyrethroid, etc) 2. Integrate chemical control with effective, complementary cultural and biological control practices. 3. Always use pesticides at recommended rates and strive for thorough coverage. 4. When there is more than one generation of pest, alternate different pestici de classes.

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5. Do not use tank mixtures of products that have the same mode of action (MOA). 6. If control with a pesticide fails, do not re treat with a chemical that has the same mode of action (MOA). 2011 Citrus Pest Management Guide SP043 I have a limited number of copies of t he 2011 citrus pest management Florida citrus available in my office for $15. Or, t he guide is $ 17 per copy plus shipping from the IFAS Extension Bookstore in Gainesville. Call 1 800 226 1764 and ask for publicati (s) to you in a couple of days. The guide can also be accessed online at the following link: http://www.crec.ifas.ufl.edu/extension/pest/ This program is part of the continuing e ffort by UF/IFAS Extension and the Citrus Research and Development Fou ndation to keep Florida citrus growers aware of the research efforts and progress in our battle against HL B The program will be held on Wednesday, April 6, 2011 ( ) at the South Florida Community College in Avon Park. Preregistration is required so that we can plan for the sponsored lunch. Click on the following link for a copy of the progra m, registration information and directions to SFCC: http://citrusagents.ifas.ufl.edu/events/PDF/2011%20Institute%20Brochure%202 22 11.pdf USDA Horticultural Research Laboratory Open House The Horticultural Research Laboratory in Ft. Pierce has scheduled an Open House on Friday, April 1, 2011 from 10:00 AM to 3:00 PM. The Lab is located at 2001 S. Rock Road, or just north of the Indian River Res earch and Education Center. The Open House will feature tours of this impressive facility with researchers previously visited this facility, this is a great chance to see what is going on for th e benefit of the citrus industry and other facets of Florida agriculture. And, if it fits your schedule, a simple lunch will be provided at noon. Pre registration is not required for this event.

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Citrus Mechanical Harvesting Field Day and Workshop: GETTING READY FOR ABSCISSION Wednesday, April 20, 2011 University of Florida, Southwest FL Research and Education Center 2685 State Road 29 North Immokalee, FL 34142 Agenda 7:30 Registration, coffee and refreshments 8:00 Welcome and program outline 8:15 UF/IFAS Projects in Citrus Mechanical Harvesting & Abscission 8 :30 Travel to SWFREC Concept Grove Over the Row Mechanical Harvester Demonstration CMNP Sprayer Demonstration Abscission Pull Force Demonstration Tree Mapping Technology 10: 15 R eturn to SWF REC Main Building 10:30 What Do We Know About CMNP and What We Hope to Learn From the EUP 11:30 Canopy Uniformity, Fruit Recovery, and CMNP Value 12:30 Lunch 2:00 Adjourn To RSVP or further information contact: Barbara Hyman hymanb@ufl.edu or (239) 658 3461

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24C Label for Belay 50WDG Insecticide A special local need (24c) label has been issued for Belay 50 WDG, a new soil a pplied insecticide for use on non bearing Florida citrus. The active ingredient is clothianidin, a neonicotinoid insecticide with pest control characteristics similar to imidacloprid (Admire) and thiamethoxam (Platinum). Young tree plantings will benefit from this new chemistry in that the labe l allows two applications (high rate of 6.4 oz. /Acre) in addition to the maximum labeled rates o f imidacloprid and thiamethoxam, theoretically allowing control through the entire season. It should be noted that although Belay is a different chemistry it has the same mode of action as the other compounds and the potential for psyllids and leafminer to develop resistance is increased if proper pesticide rotation management is not practiced. It is recommended that a foliar insecticide spray with a diff erent mode of action be applied between applications of any of the three soil applied products to reduce the possibility of developing pesticide resistance. CCA CEU Day, A pril 13, 2011 Certified Crop Advisors can earn 5 Nutrient Management and 5 Pest M anagement via videoconference on Wednesday, April 13, 2011. Cost is $100 and pre registration is requir ed. Click on the following link for more information: http://www.crec.ifas.ufl.edu/crec_websites/cca/ New and Revised P ublications from UF/IFAS Citrus Black Spot: No Longer an Exotic Disease (PP281) http://edis.ifas.ufl.edu/pdffiles/PP/PP28100.pdf Exotic Citrus Diseases: Early Detection is the Solution to Protecting Florida Citrus (CH202) http://edis.ifas.ufl.edu/pdffiles/CH/CH20200.pdf Sampling for Asian Citrus P syllid (ACP) in Florida (ENY857/IN867) http://edis.ifas.ufl.edu/pdffiles/IN/IN86700.pdf Camelina Production in Flor ida (AGR340) http://edis.ifas.ufl.edu/pdffiles/AG/AG35000.pdf

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General Standards (CORE) CEU Program Agents with IFAS St. Lucie E xtension will be conducting a General Standards (CORE) CEU program on Wednesday, May 11, 2011. Mark the date in your calendar now to plan to pick up 3, hard to month. Pesticide Applicator Training Opportunities General C ertification S tandards (CORE) T raining & T esting Wednesday April 6, 2011 9:00 AM to 10:4 0 AM with exa m to follow. Cost is $20 with checks payable to SLC Extension Advisory Council or click on the link below: Call (772) 462 1660 to pre register or for more information: http://stlucie.ifas.ufl.edu/pdfs/natural_resources/2011/april2011%20 %20Core.pdf Aquatic Weed Control Training & Testing Friday, April 8 2011, 9:00 AM to 11:00 AM with exam to follow. Cost is $20 with registration information (REQUIRED) on the link below: Call (772)462 1660 for more information. http://www.eventbrite.com/event/12 88087705 Citrus Industry Magazine Why Should Pesticide Applicators Care About Heat Stress? One General Standards (CORE) CEU http://citrusindustry.net/ceu3.html The Label Is the Law One General Standards (CORE) CEU http://www.citrusindustry.net/2011ceu1.html Florida Grower Magazine A L a rge S election of http://www.growingproduce.com/floridagrower/ceu/

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Upcoming Dates to Remember USDA Horticultural Research Lab Open House Friday, April 1, 2011, 10:00 AM to 3:00 PM 2001 S. Rock Rd., Ft. Pierce, FL 2011 Citrus Growers Institute Wednesday, April 6, 2011, South Florida Community College, Avon Park Mechanical Harvesting Field Day and Workshop Wednesday, April 20, 2011, Southwest Florida REC, Immokalee Take Care, Tim Gaver, Extension Agent Citrus UF/IFAS/St. Lucie County Extension 8400 Picos Rd, Suite 101 Ft. Pierce, FL 34945 (772) 462 1660 Tgaver.49@ufl.edu UF/IFAS / St. Lucie County Extension Website http://stlucie.ifas.ufl.edu (Click on the CITRUS tab at the upper left for my CITRUS pages ) All programs and related activities sponsored for, or assisted by the Institute of Food and Agricultural Sciences are open to all persons without discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions, or affiliations. Florida Cooperative Extension Service/Institute of Food and Agricultural Sciences/University of Florida/Millie Ferrer Chancy, Interim Dean and Director for Extension.


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