UII UNIVERSITY of
St. Lucie County Extension, 8400 Picos Road, Suite 101, Ft. Pierce, FL 34945-3045
772 462-1660 http://stlucie.ifas.ufl.edu
Treasure Coast Citrus Notes
Asian Citrus Psyllid (ACP) Management
There has been a lot of information developed in the last couple of years
about the Asian citrus psyllid and its biology. We know much more about
the insect life cycle, its feeding and movement patterns, what pesticides are
effective and when and how to apply them, when it transmits greening most
effectively and many other helpful facts that should influence our
management decisions. We also know a whole lot more about citrus
greening disease (HLB) and its consequences, especially those of us who
work in the southern half of the citrus growing area in Florida.
I was at a meeting last week with the rest of the Citrus Extension Agents
where we were engaged in still another discussion and planning session
regarding our future educational efforts in the battle against HLB. Several
of the agents commented that they had growers who were not making any
Inside this Edition
* Asian Citrus Psyllid (ACP) Management
* Citrus Black Spot Information
* Stone Fruit & Blueberry Workshop
* Presentations from 2010 Citrus Growers' Institute
* Florida House Bill 7103
* The Hand That Feeds U.S.
* Pesticide Applicator Training
effort to control Asian Citrus Psyllids, in spite of the current
recommendations that psyllid control is necessary. I have also heard
comments from a couple of growers in the Indian River Area who think that
grapefruit are not that badly affected by greening and are not really worried
about the disease. Well, some varieties may seem to show a little
resistance to the disease in the short term, but I can send you digital
photos or show you grapefruit blocks that have been devastated by HLB
when psyllids weren't controlled.
Of course, psyllid control is only part of the HLB management equation, as
outlined in the IFAS Guidance for Huanglongbing (HLB) Management
Here are some of the things that we do know about effective ACP
If you have new flush, the psyllids will come. This includes normal
growth flushes and following hedging and topping operations.
Coordinated wide area sprays are effective in general, and are very
effective in cool season dormant sprays (November February).
Psyllids tend to congregate on the outside rows of blocks and initial
scouting efforts should begin there.
http://swfrec.ifas.ufl.edu/entlab/pdf/extension/ACP sampling english.pdf
http://swfrec.ifas.ufl.edu/entlab/pdf/extension/grove data enqlish.pdf
Although not all the pesticides registered for ACP control have been
tested at varied temperatures, experimental results to this point have
shown that pesticides such as Mustang and Danitol performed well in
cooler temperatures and pesticides such as abamectin, Lorsban,
Sevin and Dimethoate performed better in warmer temperatures.
Products recommended for ACP control may have negative effects
on populations of beneficial predators, which have already resulted in
the resurgence of other pest problems. Some of the recommended
pesticides have "milder" chemistries and should be seriously
considered as part of rotational program to avoid harmful effects on
beneficial, bees and to avoid pesticide resistance.
Because we have a number of pesticides recommended for use, growers
can utilize these pesticides to formulate many combinations of programs
that can provide efficacy, biological benefits and guard against pesticide
resistance. These products vary widely in cost, but integrating the more
expensive materials in a rotating program will pay off in the long term.
An environmentally sound ACP control program utilizes scouting, proper
application timing and temperature considerations, varied modes of action
and the use of insecticides with "soft" chemistry to aid beneficial.
Quick Reference Guide to Citrus Insecticides and Miticides, ENY-854
Citrus Black Spot Information
The "Citrus Black Spot The Disease and Identification" Polycom
workshops that were held around the state on May 6 attracted nearly 300
participants, including 70 at the Indian River Research & Education Center.
UF/IFAS personnel have already produced several
identification/information handouts regarding this new disease and more
are in the works. Research is ongoing about control under Florida
conditions and lots more information will be forthcoming, including a CBS
webpage that is under construction. Identification laminates are available
at my office if you haven't already picked one up at the Citrus Growers'
Institute in Avon Park or at one of the Citrus Black Spot workshops. A link
to the FDACS Pest Alert document for CBS follows:
http://www.doacs.state.fl. us/pi/pest alerts/pdf/citrus-black-spot-pest-alert.pdf
Photos courtesy of Dr. Mongi Zekri, UF/IFAS Multi-County Citrus Agent
Stone Fruit and Blueberry Workshop
As citrus growers and other agricultural landowners look for potential
alternative crops to citrus, we've scheduled a Stone Fruit and Blueberry
Workshop for Tuesday morning, June 15 at the Indian River Research &
Education Center. The workshop will feature presentations by Dr. Mercy
Olmstead, Extension Stone Fruit Specialist and Dr. Jeff Williamson,
Extension Blueberry Specialist.
Neither of these alternative crops is going to replace citrus, but it appears
there is potential for some plantings on the Treasure Coast. Mark your
calendars for Tuesday morning, June 15th and look for more information in
the near future as the program is finalized.
Florida Citrus Growers' Institute
This years' Institute was held at the South Florida Community College
campus in Avon Park in April. There were a total of 20 presentations on
the program which was another effort by UF/IFAS/Citrus Extension to keep
growers aware of the latest information available in the war against HLB.
Some 350 growers and allied citrus partners attended the event. Copies of
the powerpoint presentations should be showing up on the Citrus Agents'
Website in the very near future. The presentations from the 2008 and 2009
Institutes are still posted if you care to review those informative items. A
link to the Citrus Agents Website follows:
http://citrusagents.ifas.ufl.edu/Citrus Agents Home Page/Citrus Agents Home.html
Florida House Bill 7103
The following message is passed on from Gene McAvoys' South Florida
Pest and Disease Hotline, issued on Friday, May 7, 2010:
"I encourage you to call or email Governor Charlie Crist and URGE GOV.
CRIST TO SIGN HB 7103".
House Bill 7103, the General Agriculture Bill passed by the Florida
Legislature April 27, must be signed by Gov. Crist in the next several days
in order to become law. This bill is advantageous to producers in several
ways. FFB and FFVA strongly urges members to call or email the governor
stating your support of the measure and why it is important to you, the
industry and to the state's economy.
The following are some of the issues that HB 7103 addresses:
- Prohibits counties from enforcing ordinances that duplicate state
- Prohibits counties from charging a stormwater management fee if growers
implement BMPs, or have a NPDES permit, an ERP or works-of-the-district
- Creates the Agricultural Nuisance Claim Act, which would require
developers interested in building communities close to a farm to waive their
rights to file noise nuisance claims.
- Expands eligibility for exemption from a local business occupational
license for those who sell farm, grove or certain other agricultural products.
- Exempts farm buildings and fences from county and municipal codes and
- Allows additional fiscally-sound multi-peril crop insurers to sell crop
insurance in Florida
- Expands the types of ag waste that may be disposed of by open burning
as long as it does not violate state or federal air quality standards.
The governor must hear from producers immediately. Contact him via email
Charlie. Crist@SMvFlorida.com or call (850) 488-7146.
The Hand that Feeds U.S.
There are a number of websites that focus on agricultural issues around
the U. S. One that I have found interesting is a project by
FarmPolicyFacts.org that focuses on farmers growing different types of
crops around the country, among other features. The Farm to Fork and
Farm to Fuel tabs take you to some very educational articles. You can get
some great talking points for when you are discussing the importance of
agriculture with your urban friends and learn a lot about the problems that
other producers are facing.
Pesticide Applicator Training Opportunities
General Certification Standards (CORE) Training & Testing
Wednesday, June 2, 2010, 9:00 AM to 10:40 AM with exam
Cost is $20 with checks payable to SLC Extension Advisory
Call (772) 462-1660 to pre-register or for more information:
Citrus Industry Magazine
Safe Storage and Transportation of Pesticides
One General Standards (CORE) CEU
http://www.citrusindustry. net/ceu 1.html
Florida Grower Magazine
General Standards (CORE) CEU's
http://www. rowi n produce.com/florida rower/ceu/
Just for Fun
A Cowboy's Guide to Life (I've never met this cowboy, but he must be out there
Never squat with your spurs on.
There are two theories about arguing with a woman; neither one works.
Don't worry about biting off more than you can chew, your mouth is probably a
whole lot bigger than you think.
If you get to thinking that you're a person of some influence, try ordering
somebody else's dog around.
After eating an entire bull, a mountain lion felt so good that he started roaring.
He kept if up until a hunter came along and shot him. The moral: When you're
full of bull, keep your mouth shut.
If you find yourself in a hole, the first thing to do is stop digging.
Letting the cat out of the bag is a whole lot easier than putting it back in.
When you're throwing your weight around, be ready to have it thrown around by
When you give a lesson in meanness to a critter or a person, don't be surprised if
they learn their lesson.
Good judgment comes from experience; experience comes from bad judgment.
Always drink upstream from the herd.
The quickest way to double your money is to fold it over and put it back in your
Never miss a good chance to shut up.
Tim Gaver, Extension Agent Citrus
UF/IFAS/St. Lucie Extension
8400 Picos Rd, Suite 101
Ft. Pierce, FL 34945
UF/IFAS/St. Lucie Extension
(Click on the CITRUS tab at the upper left for my CITRUS pages)
The Foundation for The Gator Nation
An Equal Opportunity Affirmative Action Institution