by Mary Salinas | Nov 9, 2015
Are you plagued with mosquitoes in your yard? Does it seem like you have a greater infestation than your neighbors? There may be some solutions to solve the problem other than using pesticides that negatively impact beneficial insects in your landscape.
Asian tiger mosquito. Photo credit: Susan Ellis, Bugwood.org.
Mosquitoes are not only annoying, they can transmit serious diseases such as: eastern equine encephalitis, dengue fever, dog or cat heartworm, chikungunya, malaria, St. Louis encephalitis and west Nile virus.
Let’s first explore what kind of environment in your landscape and around your home is friendly to the proliferation of mosquitos. Adult mosquitoes lay their eggs on or very near water that is still or stagnant. That is because the larvae live in the water but have to come to the surface regularly to breeze. The small delicate larvae need the water surface to be still in order to surface and breathe. Water that is continually moving or flowing inhibits mosquito populations.
Look around your home and landscape for these possible sites of still water that can be excellent mosquito breeding grounds:
- bird baths
- potted plant saucers
- pet dishes
- old tires
- ponds
- roof gutters
- tarps over boats or recreational vehicles
- rain barrels (screen mesh over the opening will prevent females from laying their eggs)
- bromeliads (they hold water in their central cup or leaf axils)
- any other structure that will hold even a small amount of water (I even had them on a heating mat in a greenhouse that had very shallow puddles of water!)
Mosquito larvae. Photo credit: Ari Farajollahi, Bugwood.org.
You may want to rid yourself of some of these sources of standing water or empty them every three to four days. What if you have bromeliads, a pond or some other standing water and you want to keep them and yet control mosquitoes? There is an environmentally responsible solution. Some bacteria, Bacillus thuringiensis ssp. israelensis or Bacillus sphaericus, only infects mosquitoes and other close relatives like gnats and blackflies and is harmless to all other organisms. Look for products on the market that contain this bacteria.
For more information:
UF/IFAS Mosquito Information Website
Biological Control of Mosquitoes
by Molly Jameson | Nov 4, 2015
Covering a row of lettuce with frost cloth at Turkey Hill Farm. Photo by Turkey Hill Farm.
While most of Florida does not have to worry about freezing winter weather, the Florida Panhandle is certainly an exception. North Florida experiences a few hard freezes – temperatures less than 28°F for over five hours – every year. Although most of our cold weather occurs in January and February, we can expect our first frost around the second week of November. Therefore, it is important for gardeners to be prepared.
Most of the Panhandle is in zone 8b, which means average minimum temperatures are between 15 and 20°F. Nights – especially consecutive nights – that get this cold can “burn” the tips of even the toughest vegetables, such as collards and kale. It is also important to remember that if you live in a more rural area, temperatures will be slightly cooler, relative to the city. Frost is also more likely to occur on clear nights, as heat that radiated down from the sun during the day will escape the atmosphere at night, if clouds are not present. Also, if you were late getting your fall garden started, it is even more important to protect your vegetable plants, as young plants are more susceptible to cold weather.
Young plants are more susceptible to cold weather, so be sure to use cold protection. Photo by Molly Jameson.
One strategy home gardeners can use to protect their plants during cold weather is to use frost cloth. Frost cloth is a breathable polyester fabric that is light weight and heat-retentive. It can moderate temperatures about six to eight degrees Fahrenheit. Use it on all of your garden plants if there is a hard freeze, but do not cover cold hardy vegetables in mild frosts, as their flavor can actually become sweeter in cool weather, and the plants will become more tolerant to the cold.
Frost cloth can be found at most plant nurseries, and it can last multiple years if you take care of it. Use wire hoops to keep the cloth off smaller crops, as ideally the cloth should not touch the plant. Most importantly, the cloth must touch the ground at all points to be effective, as it works by trapping heat that radiates from the soil and increases the humidity around the plant.
In the morning, do not remove frost cloth too early, as quick thawing can actually cause the most severe damage. Wait until the outside air temperature is about 50 to 60°F. Since frost cloth is breathable, if temperatures do not reach 50 to 60°F during the day, you can leave it on multiple days.
Frost cloth in high tunnel at Turkey Hill Farm. Photo by Turkey Hill Farm.
Sheets or blankets (not plastic) can be a frost cloth substitute, but there are disadvantages, such as not allowing proper air circulation or not being large enough to reach the ground.
Another strategy that can help keep your garden safe from cold weather is to keep your plants well watered, as frost damage is actually dehydration. When ice crystals form on the leaf surface, it draws moisture from the leaf tissue. Damage will therefore be less severe if the plant is not already drought-stressed. You can also mulch around the base of your plants with wood chips or straw to help moderate soil temperature and retain moisture.
Being prepared for cold weather will help keep your vegetable garden going strong all the way into the spring. Remember that healthy plants will be more resistant to cold weather than unhealthy plants, and investing in a few sheets of frost cloth can go a long way to ensure your veggies survive our chilly North Florida winters.
by Beth Bolles | Oct 27, 2015
Fall is a wonderful season for viewing wildflowers and there are many flower colors brightening our landscapes and roadsides. Amongst all the color there is one wildflower, the Rayless sunflower (Helianthus radula) that may not be nearly as showy but is very interesting in the landscape.
Flower heads have disk flowers but no rays. Photo by Beth Bolles
Many people will discover the Rayless sunflower in a moist area near the ditch or a drainage area. It has a basal set of leaves that blend into the surrounding grass. In summer a leafless stem about will emerge that is topped by a round flower with discs but no rays. It mostly appears brown but may offer a tinge of red or purple from the disc flowers.
Rayless sunflower in mass. Photo by Jeff Norcini
Not everyone will appreciate the beauty of the rayless sunflower. It will be visited by pollinators and offers an attractive contrast to the greens of surrounding plant material. It is a plant suited to its preferred habitat and an understated treasure among native wildflowers.
by Blake Thaxton | Oct 14, 2015
Photo Credit: UF/IFAS
It’s time to bed up some earth and plant strawberries! That right! Fall is the proper time to set out strawberry plants for a spring harvest. It is a common misconception that strawberries should be planted in the spring in the home garden. If planted in spring, such poor timing will result in a very reduced delicious strawberry harvest. Plant in the fall to ensure a tasty treat from your garden come spring time.
Strawberries do well on soil beds built to as tall as 10 inches and 20 inches wide. Two rows 12 inches apart can be planted on each bed. The plants should be spaced 12 inches within the row. Prepare your soil in you garden where it receives adequate sunlight, eight hours of direct sunlight is best. Two pounds to 10-5-10 can be mixed into the soil bed for every 10 foot of bed. It is even better to take a soil sample for analysis to know exactly what your garden needs to produce the best strawberry crop possible. Contact your local UF/IFAS extension office for more information on soil analysis.
Once a bed has been formed and you are ready to set plants it is important to have a plan for irrigation. The type of strawberry you plant will help you come up with the correct plan.
For freshly dug bare-root strawberry plants:
- Water with overhead irrigation frequently during the hottest parts of the day (10am-5pm) to ensure the plants to not wither and die. This will need to be done for one to two weeks until the plants are established.
For plug or containerized transplants:
- Very little overhead irrigation will be required as the root system is intact and functioning at the time of planting. Be sure to keep the soil moist for adequate establishment of this kind of strawberry plant.
For more information regarding growing strawberries in Florida visit solutionsforyoulife.ufl.edu or contact your local extension office.
by Julie McConnell | Sep 29, 2015
Giant Swallowtail on citrus leaf. JMcConnell, UF/IFAS
Adult butterflies are pretty easy to attract to your landscape if you provide flowering plants, but getting them to lay eggs in your garden is a little trickier.
Butterflies go through complete metamorphosis which means that they have four main life stages. The first is the egg, second they hatch into caterpillars (larvae) which feed and molt many times, the third stage is the pupa or chrysalis, and finally they emerge as colorful adults. Complete metamorphosis is considered a more advanced life cycle than incomplete and one of the reasons is because most insects that go through this process do not compete for food at different life cycles. For example, the gulf fritillary butterfly larvae needs passionflower (Passiflora spp.) to feed on – no other plant type will do. The adults visit many flowering landscape plants such as zinnias, butterfly bush, pentas, etc. The adults are feeding on nectar while the caterpillars are eating foliage.
Because the larvae are very host specific, you must offer the correct plant to attract particular butterflies. Luckily, we have many options in the Florida panhandle! Just remember if you would like to attract butterfly breeding to your yard, you must sacrifice some foliage to support the caterpillars.
• Gulf Fritillary – Passionflower
• Monarch – Native milkweed
• Giant Swallowtail – citrus
• Eastern Black Swallowtail – plants in the carrot family including dill, celery, fennel, and parsley
• Tiger Swallowtail – sweet bay magnolia, tulip poplar, black cherry
• Zebra Swallowtail – pawpaw
• Luna Moth – walnut, hickory, sweetgum, persimmon, winged sumac
If you would like to know more about individual butterfly species please visit UF/IFAS Entomology & Nematology’s Featured Creatures website.
by Gary Knox | Sep 28, 2015
The University of Florida/IFAS presents Art & Garden Fall Family Festival, October 3, at the North Florida Research and Education Center (NFREC), Quincy Campus. Join us that day and discover creative ways to explore visual art and the art of gardening through demonstrations and fun activities for the whole family. Speak with experts about all your gardening questions or purchase unusual, hard-to-find, top-performing plants for our area. Take a tour of the Gardens or a trolley ride highlighting fruits and nuts that can be grown in our area. Locally grown produce and garden plants as well as arts and crafts will be for sale along with food and refreshments. Children’s arts and crafts activities will take place in a huge “Kid Zone” located in a shaded, garden area.
The Art & Garden Fall Festival is free and open to the public from 9 a.m. to 2 p.m. on Saturday, October 3.
The festival takes place in Gardens of the Big Bend, located in Quincy at I-10 Exit 181, just 1/8 mile north on Pat Thomas Highway (SR 267). The Gardens are located on the campus of University of Florida/IFAS, North Florida Research and Education Center, off Pat Thomas Parkway, SR 267 at 155 Research Road, Quincy, FL. Located just north of I-10 Exit 181, 3 miles south of Quincy.
Presented by the University of Florida/IFAS, North Florida Research and Education Center in collaboration with the Gadsden Arts Center, Gardening Friends of the Big Bend, the Quincy Garden Club and other area garden and arts organizations.
For more information: http://nfrec.ifas.ufl.edu/art-and-garden/ or 850-875-7100.
