Cogongrass continues to be a thorn in the side of many landowners and municipal public works departments, as it spreads in areas across the Panhandle, with Gulf County being no exception. Thankfully, there are ways to combat cogongrass, but it seems to be an uphill battle. Identifying and being persistent with treatment are paramount in control.
Figure 1: Cogongrass infestation and uneven mid-rib in leaf blade.
Credit: Ray Bodrey, UF/IFAS Extension Gulf County.
Cogongrass (Imperata cylindrica) is found all over the world. In the U.S, it is primarily found in the southeast. Cogongrass was purposely introduced as a soil stabilizer for pasture lands in Florida during the 1930’s and 1940’s. It wasn’t long before ranchers and agricultural scientists realized that cogongrass was an invasive species. Once established, cogongrass has the ability to overrun pastures and natural areas to the point that it will be the only plant species occupant. It’s a perennial grass with a vast, ever expanding root system. This grass can grow in any soil type and low soil fertility nor drought, are concerns either. Therefore, it thrives no matter how poor the soil environment. Even with multiple days of periods of well below freezing temperatures and a prior application of herbicide, figures 1 & 2 display the resiliency of cogongrass. The major concern is the ability to eliminate native plant habitat.
Cogongrass can be confused with other grasses, like switchgrass. This is especially possible early in the year before the bloom. To identify cogongrass, first investigate the growing pattern. It usually infiltrates an area in patches. As shown in figure 1, the grass blades are flat and have a defining white mid-rib. Blades are finely serrated, yellow to green in color and are uneven in width on each side of the mid-rib. The seed head is fluffy, white and feather shaped. The seed head can alarmingly yield 3,000 seeds per head.
Figure 2: Cogongrass spreading.
Credit: Ray Bodrey, UF/IFAS Extension Gulf County.
The management strategy most successful with eradicating cogongrass consists of multiple types of herbicides sprayed over multiple year applications, with additional spot treatments. Prescribe burning can also be used in concert as an integrated approach.
For control measures, see the tables in the document referenced below. Also, contact your local county extension agent for further details.
Information for this article is from the UF/IFAS EDIS publication: “Cogongrass (Imperata cylindrica) Biology, Ecology, and
The University of Florida/IFAS Extension faculty are reintroducing their acclaimed “Panhandle Outdoors LIVE!” series. Conservation lands and aquatic systems have vulnerabilities and face future threats to their ecological integrity. Come learn about the important role of these ecosystems.
The St. Joseph Bay and Buffer Preserve Ecosystems are home to some of the one richest concentrations of flora and fauna along the Northern Gulf Coast. This area supports an amazing diversity of fish, aquatic invertebrates, turtles, salt marshes and pine flatwoods uplands.
This one-day educational adventure is based at the St. Joseph Bay State Buffer Preserve near the coastal town of Port. St. Joe, Florida. It includes field tours of the unique coastal uplands and shoreline as well as presentations by area Extension Agents.
Registration fee is $45.
Meals: breakfast, lunch, drinks & snacks provided (you may bring your own)
Attire: outdoor wear, water shoes, bug spray and sun screen
*if afternoon rain is in forecast, outdoor activities may be switched to the morning schedule
Space is limited! Register now! See below.
All Times Eastern
8:00 – 8:30 am Welcome! Breakfast & Overview with Ray Bodrey, Gulf County Extension
8:30 – 9:35 am Diamondback Terrapin Ecology, with Rick O’Connor, Escambia County Extension
9:35 – 9:45 am Q&A
9:45- 10:20 am The Bay Scallop & Habitat, with Ray Bodrey, Gulf County Extension
10:20 – 10:30 am Q&A
10:30 – 10:45 am Break
10:45 – 11:20 am The Hard Structures: Artificial Reefs & Marine Debris, with Scott Jackson, Bay County Extension
11:20 – 11:30 am Q&A
11:30 – 12:05 am The Apalachicola Oyster, Then, Now and What’s Next, with Erik Lovestrand, Franklin County Extension
12:05 – 12:15 pm Q&A
12:15 – 1:00 pm Lunch
1:00 – 2:30 pm Tram Tour of the Buffer Preserve (St. Joseph Bay State Buffer Preserve Staff)
2:30 – 2:40 pm Break
2:40 – 3:20 pm A Walk Among the Black Mangroves (All Extension Agents)
3:20 – 3:30 pm Wrap Up
To attend, you must register for the event at this site:
A Pond Management Field Day will be held May 11, 2022, at the North Florida Research and Education Center, in Quincy, Florida. The field day will include pond demonstrations and classroom workshops on weed prevention, sprayer calibrations, and fish stocking and management. There will also be a trade show with vendors as well as pond water testing and weed identification. The field day will also provide Pesticide CEU’s for natural areas.Registration for the Field Day is through Eventbrite and the cost for the day is $10, which includes lunch. For questions or more information, contactRobbie Jones at the UF/FAS Extension- Gadsden County Office – 850-875-7255.
The University of Florida IFAS Extension and the Beekeeping in the Panhandle Working Group has once again teamed up to offer the 9th Annual Beekeeping in the Panhandle Conference on Friday May 6th and Saturday May 7th 2022 at the Washington County Ag Center Auditorium.
This year’s event will feature: Hands-on open hive experiences, presentations on the latest in research-based beekeeping management practices, interaction with expert beekeepers, vendors with beekeeping equipment, and hive products. Door prizes will be available as well!
The registration fee for the event will be $35 for one day or $55 for both days per person over 12, and $15 per day for kids 12 and under.
The activities will take place from 8:00 am – 5:00 pm Central each day and will include catered lunch.
Do you live in Bay, Gulf, and Franklin County? We need your help! Scallop Sitters is one of our cooperative volunteer programs with Florida Fish and Wildlife (FWC).
Historically, populations of bay scallops were in large numbers and able to support fisheries across many North Florida bays, including St Andrew Bay, St Joe Bay, and Alligator Harbor (Franklin County). Consecutive years of poor environmental conditions, habitat loss, and general “bad luck” resulted in poor annual production and caused the scallop fishery to close. Bay scallops are a short-lived species growing from babies to spawning adults and dying in about a year. Scallop populations can recover quickly when growing conditions are good and can decline dramatically when growing conditions are bad.
An opportunity to jump start restoration of North Florida’s bay scallops came in 2011. Using funding from the Deepwater Horizon Oil Spill, a multi-county scallop restoration program was proposed and eventually set up in 2016. Scientists with FWC use hatchery reared scallops obtained from parents or broodstock from local bays to grow them in mass to increase the number of spawning adults near critical seagrass habitat.
FWC also created another program where volunteers can help with restoration called “Scallop Sitters” in 2018 and invited UF/IFAS Extension to help manage the volunteer part of the program in 2019 which led to targeted efforts in Gulf and Bay Counties.
Giving scallops a helping hand, “Scallop Sitters” work with UF/IFAS Extension, Florida Sea Grant, and FWC restoration scientists by cleaning scallops and checking salinity once a month from June through January. Photo by Tyler Jones, UF/IFAS Extension and Florida Sea Grant.
After the 2020 hiatus due to COVID-19, the program boasted nearly 100 volunteers for the 2021 campaign. UF/IFAS Extension is once again partnering with FWC in Bay and Gulf and Franklin Counties. Despite challenges with rainfall, stormwater runoff, and low salinity, our Scallop Sitter volunteers have supplied valuable information to researchers and restoration efforts, especially in these beginning years of our program. Scallop Sitters collect useful information about salinities throughout the target bays. But the bulk of the impact comes with keeping a close watch on their scallops. The scallops maintained by their sitters have a better chance of a successful spawn when the time is right.
A “Scallop Sitter” cage ready for placement near seagrasses. The cages are restoration tools used to produce baby scallops during the annual growing cycle. Photo by L. Scott Jackson.
So, what does a Scallop Sitter do? Volunteers manage predator exclusion cages of scallops, which are either placed in the bay or by a dock. The cages supply a safe environment for the scallops to live and reproduce, and in turn repopulate the bays. Volunteers make monthly visits from June until January to their assigned cages where they clean scallops removing attached barnacles and other potential problem organisms. Scallop Sitters watch the mortality rate and collect salinity data which helps figure out restoration goals and success in targeted areas.
Bay County: June 16th Kickoff Reception 9:30AM, Pick-up 10:00AM – 1:00 PM (Central)
An Equal Opportunity Institution. UF/IFAS Extension, University of Florida, Institute of Food and Agricultural Sciences, Andra Johnson, Dean for UF/IFAS Extension. Single copies of UF/IFAS Extension publications (excluding 4-H and youth publications) are available free to Florida residents from county UF/IFAS Extension offices.