How Weather Affects Citrus and Other Dooryard Fruit Varieties

How Weather Affects Citrus and Other Dooryard Fruit Varieties

The weather is the most important factor determining where certain fruits can be successfully grown. Terms such as chilling requirement and cold hardiness play a major role in both species and variety selection.

Most fruits which grow in the Panhandle are deciduous, meaning that during the winter, they lose their leaves and go through a semi to full dormancy period. This period is a much needed rest and reset for the plant. The cool season actually helps the plant to rebound for another fruiting season and affects how well the plant will yield fruit. This is where the term “chilling hours” comes into play.

Temperatures below 45 degrees Fahrenheit are considered “chilling”.  The number of hours below 45 degrees accumulated throughout the winter determines the total amount of chilling hours. Different species of citrus and dooryard fruit, along with different cultivars of these plants differ in the amount of chilling hours need for that all important rest & reset period. Satsuma is a popular fruit trees in our area, as it is by far the most cold hardy citrus. Evidence suggests that the satsuma can survive a temperature as low as 14 degrees Fahrenheit.

Figure 1. Mature satsumas ready for harvest.

Credit. Pete Anderson. UF/IFAS Extension.

What happens if the plant doesn’t receive the needed amount of chilling hours? Plant hormones can be disrupted, and both leafing and blooming could be light and come outside of the normal range of the season. So, where do we stand in the Panhandle for overall chilling hours? Typically, we see approximately 500 hours chilling hours. Therefore, its best to plant citrus and dooryard fruit that have the characteristic of needing 500 or less hours for chilling. Please see this informative document on citrus and dooryard fruit varieties: https://edis.ifas.ufl.edu/publication/MG248

Now, on to the term cold hardiness. By definition, this is the plants ability to withstand cool season temperatures without injury. Most tropical fruits cannot tolerate our Panhandle temperatures. Those of us that cut back banana trees every year know this all too well. To check your plant hardiness zone, please see the USDA Plant Hardiness Zone Map: https://planthardiness.ars.usda.gov/

Before you plant a fruit tree, make sure you understand about its cold hardiness and whether or not it has a chilling requirement. This will both save you money and a headache, in the end. If you’re in doubt about a particular variety, contact your local extension office.

Information for this article can be found at the UF/IFAS EDIS Publications, “Dooryard Fruit Varieties: https://edis.ifas.ufl.edu/publication/MG248 & “The Satsuma Mandarin”: https://edis.ifas.ufl.edu/publication/CH116

UF/IFAS Extension is an Equal Opportunity Institution.

Plenty of Summer Gardening and Landscape Activities Ahead

Plenty of Summer Gardening and Landscape Activities Ahead

A watering tin and gardening gloves at a home garden.

Spending time gardening in the summer months can be difficult, especially in the Florida Panhandle. The brutally high temperatures and sometimes intensive humidity can make gardening seem unbearable. However, for those brave outdoor enthusiasts, there are always things to do around the homestead when it comes to vegetable gardening, landscape shrubs and lawn care.

Warm season vegetable gardening at this point becomes an uphill battle for some crops, with this being peak time for both insect and disease problems to occur. However, if you planted early enough, much of your harvest is probably in the safe zone. Scouting is key to prevent any major pest damage. Be sure to scout several times a week during these hot, summer days.

Shifting gears, the warm season is a good time to take extra special care of plants such as, azaleas and camellias, while they are establishing flower buds for the next bloom. A lack of water, fertilizer and pest detection and prevention can all certainly play a role in the following season’s flower production. Summer annuals always provide quick and easy color. Remember to feed established annuals with a complete fertilizer and remove faded blooms along the way. Water annuals well during hot, dry periods and control major annual pests to insure good production.

Finally, lawn maintenance is a need for many homeowners during this time of year. Almost all highly successful herbicides are no longer recommended at this point, as many will burn the turfgrass at temperatures above 80 degrees Fahrenheit. Depending on the weed pest and type of turfgrass, most likely the best way to control weeds in your lawn is to wait until cooler fall temperature to treat. Keeping good cultural practices this time of year will help in maintaining a healthy lawn and reduce pest pressure. Be sure to water lawns thoroughly when needed by applying one to three quarters of an inch of water weekly, depending on rainfall. Be sure to keep in mind mower height/frequency, as this is critical in keeping your lawn healthy. As stated in the “Mowing Your Florida Lawn” UF/IFAS EDIS publication, mow often enough so that no more than 1/3 of the blade height is removed per mowing. For example, if your St. Augustinegrass lawn is mowed at a height of 4 inches, it should be mowed before it grows to a height above 6 inches. It is important to always leave as much leaf surface as possible so that photosynthesis can occur, particularly in a grass that is subject to environmental or site stresses.

Unfortunately, it is chinch bug time again. Chinch bugs are prone to feed on St. Augustine lawns during hot, dry weather and may cause serious damage if not controlled. Damage usually occurs as a patch with a brown, dead center and yellowish margin. It seems chinch bugs get the blame, and often unjustly, for everything. Consult with your local county extension office to be sure the damage is not due to other reasons.

For more information, please contact your local county extension office.

Supporting information for this article can be found in the UF/IFAS EDIS publications/websites below:

Florida Vegetable Gardening Guide: https://edis.ifas.ufl.edu/publication/VH021

North Florida Gardening Calendar: https://edis.ifas.ufl.edu/publication/ep451#SECTION_7

Lawn Maintenance: https://edis.ifas.ufl.edu/entity/topic/lawn_care

Mowing Your Florida Lawn: https://edis.ifas.ufl.edu/publication/LH028

UF/IFAS Extension is an Equal Opportunity Institution.

The Tupelo Honey Festival is Just Around the Corner

The Tupelo Honey Festival is Just Around the Corner

The Annual Tupelo Honey Festival will be held Saturday, May 21st from 9 am – 4 pm central time at Lake Alice Park in Wewahitchka. This is an exciting event, with your chance to take part in a local treat. Area honey producers will be on hand, selling their honey in a variety of sizes. There will also be food, art & crafts, and live music.

For decades, tupelo honey has been synonymous with Gulf County. The nectar from the tupelo gum tree (Nyssa ogeche), produces some of the finest honey in the world. The common name “tupelo” is derived from language of the Muscogee Nation, also known as the Creek Indian Nation. The meaning of the word is “swamp tree”, as this tree flourishes in areas of wet soils and seasonal flooding. Gulf County is home to one of the largest tupelo forests on earth.

Honeybee visiting tupelo blossoms

Honeybee visiting tupelo blossoms. Photo Credit: Gulf County Tourist Development Council

The tupelo bloom season lasts from approximately mid-April to the end of May. This is an anxious time for beekeepers. Tupelo blooms are very temperamental and delicate in nature. For this short period, beekeepers hope for little wind or rain and no cold temperatures, as any of these factors can make or break tupelo honey production. Regardless of seasonal impacts, the demand for Gulf County’s tupelo honey never subsides.

Please visit http://www.tupelohoneyfestival.com/ for more information on the festival. For more information on beekeeping, contact Gulf County Extension at 639-3200.

UF/IFAS Extension is an Equal Opportunity Institution.

Register Now! 9th Annual Beekeeping in the Panhandle Conference on Friday May 6th & Saturday May 7th 2022

University of Florida IFAS Extension and the Beekeeping in the Panhandle Working Group have 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 and $15 per day for youth 12 and under.

The activities will take place from 8:00 am – 5:00 pm Central Standard Time each day and will include a catered lunch.

Location: 1424 Jackson Avenue, Chipley, FL

Ways to register:

Registration link: https://www.eventbrite.com/e/9th-annual-beekeeping-in-the-panhandle-conference-trade-show-tickets-269199873067

Or drop by the Washington County Office at 1424 Jackson Avenue in Chipley.

For more information contact Washington County Extension Office at (850) 638-6180.

Thistle Emerging in Landscapes Across the Panhandle

Thistle Emerging in Landscapes Across the Panhandle

The thistle has long been an enemy of ranchers, county roadside maintenance crews and homeowners. Often difficult to control, it causes both headaches for producers, in reduction of grazing for livestock as well as being an eyesore for gardening enthusiasts. There are nine different species of thistle in Florida. Most of these are closely related, therefore the control protocols are the same. Only one species is a perennial, and all others are biennial. A biennial plant grows from seed in one year and produces seed for the next.

Thistle that has begun to bolt

Thistle that has begun to bolt. Photo Credit: Dr. Jason Ferrell, University of Florida/IFAS Agronomy Department-Weed Science.

It’s important to understand the biology of the thistle in regards of seeking control of this fast spreading weed. This plant will grow a taproot and a cluster of leaves in the first year. This is known as the rosette stage. In the second year, a stalk will appear from the center of the rosette. This is called “bolting”. A seed head will form once the bolting stage is complete. Amazingly, one thistle plant can amass 4,000 seeds. The plant faces its demise after releasing the seeds. The rosette growth stage is mostly during the winter months with bolting occurring from January to July. This is important to note when battling this persistent weed.

As for control, preventing the thistle from producing seed is the most important management measure. Otherwise, little can be done to stop the outbreak of the weed. For homeowners, manually removing the rosette and tap root by hand is effective with small stands. Be careful and wear protective coverings on your hands and arms. Keep in mind, the plant will come back if the tap root is not fully removed.

Other physical control methods, like mowing, have mixed results. This can be effective if mowing occurs after the bolting stage has occurred, but before the seed head forms. However, this is tricky, as thistle plants often do not bloom at the same time.

Thistles in the rosette stage are very susceptible to herbicides. Although, applying a herbicide after the seed head has formed has little effect on control. Herbicides containing 2,4-D are very effective for landscapes. Timing of application is critical. The key to controlling this weed is by scouting and identifying stands as early as possible.

If you’re a beekeeper, there is an upside to this weed. Delicious honey can be made from the thistle bloom.

For more information on thistle, please contact your local county extension office.

Supporting information for this article can be found in the UF/IFAS EDIS Publication, “Thistle Control in Pastures” by Dr. Brent Sellers and Dr. Jason Ferrell.

UF/IFAS Extension is an Equal Opportunity Institution.