by Sheila Dunning | Apr 13, 2017
This month, recognized by the Senate and Florida’s governor, reminds diggers why calling 811 before all outdoor digging projects is important to your safety. Before installing a mailbox, fence, deck, garden or tree make sure to call Sunshine 811 to have underground lines marked. 811 is the free national number designated by the Federal Communications Commission. It notifies utility companies, who in turn send their professional locators to identify and mark the appropriate location of underground line with paint and flags in colors that identify the utility type. The following colors represent the seven various utilities: red – electric, orange – communications (telephone, cable tv), blue – potable water, green – sewer, yellow – gas, purple – reclaimed water, and white – site of intended excavation. To learn more about color designation and their corresponding utility go to: http://www.call811.com/faqs/default.aspx. Locating marks are good for 30 calendar days. Any work beyond that requires another call to 811. If the marks are destroyed before your project is done, stop digging and call 811.
Hitting an underground utility line while digging can cause injuries. Utility service outages can also impact an entire neighborhood and damage the environment. The depth of utility lines varies, and there may be multiple utility lines in one common area. Even if you think you know where an underground line is, time tends to change things. Erosion or tree roots can shift those utility lines. Failure to call before digging results in one unintentional utility hit every eight minutes nationwide. You could also be financially affected with costly fines and high repair costs.
The Common Ground Alliance (CGA) Damage Information Reporting Tool (DIRT) provides industry stakeholders with a way to anonymously submit data into a comprehensive database for analysis of the factors that lead to events. An event is defined by the CGA DIRT User’s Guide as “the occurrence of downtime, damages, and near misses.” The number of events submitted to DIRT for 2011 totaled 207,779. However, according to CGA DIRT “when a call is made to the one call center (811) prior to excavation, 99% of the time there will be no damage”.
Calling 811 in Florida is the law. At least two full business days before digging, do-it yourselfers and professional excavators must contact 811 by phone to start the process of getting underground utility lines marked. This is a free service. Be sure that all utilities have been marked before grabbing the shovel. If you don’t see locate marks, don’t assume there are no underground utility lines. Verify with the Sunshine 811 Positive Response system. Follow up on your one call ticket by contacting 811 again on the third day. Sunshine State One Call is a not for profit corporation which began with the 1993 adoption of the “Underground Facility Damage Prevention and Safety Act,” Chapter 556, Florida Statutes. Online you can visit: www.online811.com, or call (800) 852-8057. If you provide a valid e-mail when requesting your locate ticket, positive response updates will automatically be sent to you when all utilities have responded. For more information on Florida’s law, visit www.Sunshine811.com.
by Sheila Dunning | Mar 20, 2017
Now is the time to prevent your azaleas from being attacked by lace bugs. The azalea lace bug, Stephanitis pyrioides, overwinters as eggs on the underside of infested leaves. Eggs hatch in late March and early April. The insect then passes through five nymphal instars before becoming an adult. It takes approximately one month for the insect to complete development from egg to adult and there are at least four generations per year. Valuable plants that are susceptible to lace bug damage should be inspected in the early spring for the presence of overwintering lace bug adults, eggs and newly hatched nymphs. Inspect these plants every two weeks during the growing season for developing lace bug infestations.
Both adults and nymphs have piercing-sucking mouthparts and remove sap as they feed from the underside of the leaf. Lace bug damage to the foliage detracts greatly from the plants’ beauty, reduces the plants’ ability to produce food, decreases plant vigor and causes the plant to be more susceptible to damage by other insects, diseases or unfavorable weather conditions. The azalea can become almost silver or bleached in appearance from the feeding lace bug damage.
However, lace bugs often go undetected until the infested plants show severe damage sometime into the summer. By then several generations of lace bugs have been weakening the plant. Inspecting early in the spring and simply washing them off the underside of the leaves can help to avoid damage later and the need for pesticides.
Adult lace bugs are flattened and rectangular in shape measuring 1/8 to 1/4 inch long. The area behind the head and the wing covers form a broadened, lace-like body covering. The wings are light amber to transparent in color. Lace bugs leave behind spiny black spots of frass (excrement).
Lace bug nymphs are flat and oval in shape with spines projecting from their bodies in all directions. A lace bug nymph goes through five growth stages (instars) before becoming an adult. At each stage the nymph sheds its skin (molts) and these old skins often remain attached to the lower surface of infested leaves.
Azalea lace bug eggs are football-shaped and are transparent to cream-colored. Lace bug eggs are found on the lower leaf surface, usually alongside or inserted into a leaf vein. Adult females secrete a varnish-like substance over the eggs that hardens into a scab-like protective covering.
For more information go to: http://entomology.ifas.ufl.edu/creatures/orn/shrubs/azalea_lace_bug.htm
by Sheila Dunning | Feb 3, 2017
Remember last summer? The hot, dry days. Grass drying up and turning brown. Yet, the weeds are green and doing fine. However, every herbicide label warns against applying when the temperatures are above 85 degrees and especially under drought conditions. Those weeds flourished and dispersed seed everywhere. Now, they are just sitting there ready to sprout again.
It’s time to start thinking about weed prevention. Pre-emergent herbicides need to be applied prior to seed germination. Late winter is the time to focus on summer annual weeds. The narrow window of application is challenging. Homeowners often wait too late into spring to put out preventative products. A general rule of thumb for pre-emergent herbicide timing is February 15 – March 1 in North Florida.
However, weed seeds germinate in response to soil temperature, not calendar dates. By monitoring day time temperatures, one can determine a more effective application date. When there are 4-5 consecutive days that reach 65 to 70 degrees weeds will germinate. This generally coincides with the first blooms appearing on azaleas and dogwood. With a warm winter it may occur as early as mid-January.
Some of the active ingredients in pre-emergent herbicides include dithiopyr, isoxaben, oryzalin, pendimethalin, prodiamine and simazine. Always read the label for specific weed controlled and observe all directions, restrictions and precautions.
Weed and feed products that contain nitrogen are not suitable as pre-emergent herbicides. Irrigation before and after application is necessary to activate these products. The chemical binds to soil particles, creating a barrier that remains effective for 6-12 weeks. Reapplication will be necessary for season long control, especially with constantly fluctuating winter temperatures. Now is the time to purchase pre-emergent herbicides and prepare to apply them. For more information on weed control in lawns go to: http://edis.ifas.ufl.edu/ep141
by Sheila Dunning | Dec 7, 2016
Christmas is coming. So much to do. Picking out the perfect, fresh-cut tree is one of the important 
tasks. Every family member has their specific requirement. “It has to be a certain species.” It has to be a specific height and shape.” And, of course, “It has to smell great.” So, a decision is made. The perfect tree is toted home, put up and beautifully decorated. A week later, mom shrieks, “There’s ticks all over the living room!” Don’t panic. Upon inspection, you will discover that the bugs coming from your “perfect” Christmas tree are Cinara aphids.
Cinara are a group of several species of large brown or black aphids that feed on conifers including
all pines, spruces and firs. When the Christmas trees are cut at the farm and bundled for shipment, the aphids get trapped. With warmer temperatures indoors, the aphids become active. Infestations may also arise from overwintering eggs that hatch. As the tree dries out, the aphids crawl from the tree into the rest of the house.
No worries. Cinara aphids only feed on conifers, so they pose no threat to other plants. They are not a danger to people or pets either. But don’t get rid of them by smashing them. You may be left with a nasty purple stain to have to clean up. Instead, pull out the vacuum and suck them up.
So, if you are one of those people still shopping for the “perfect” tree, add a preemptive strike to your decorating procedure. Unbundle and shake, shake, shake that tree outside before bringing it in. Then the only shrieking going on will be when mom opens the fabulous present you gave her.
by Sheila Dunning | Nov 7, 2016
Looking to add something to brighten your landscape this autumn? Firespike (Odontonema strictum) is a prolific fall bloomer with red tubular flowers that are very popular with hummingbirds and butterflies. It’s glossy dark green leaves make an attractive large plant that will grow quite well in dense shade to partial sunlight. In frost-free areas firespike grows as an evergreen semi-woody shrub, spreads by underground sprouts and enlarging to form a thicket. In zones 8 and 9 it usually dies back to the ground in winter and resprouts in spring, producing strikingly beautiful 9-12 inch panicles of crimson flowers beginning at the end of summer and lasting into the winter each year. Firespike is native to open, semi-forested areas of Central America. It has escaped cultivation and become established in disturbed hammocks throughout peninsular Florida, but hasn’t presented an invasive problem. Here in the panhandle, firespike will remain a tender perennial for most locations. It can be grown on a wide range of moderately fertile, sandy soils and is quite drought tolerant. Firespike may be best utilized in the
Image Credit UF / IFAS Gsrdening Solutions
landscape in a mass planting. Plants can be spaced about 2 feet apart to fill in the area quickly. It is one of only a few flowering plants that give good, red color in a partially shaded site. The lovely flowers make firespike an excellent candidate for the cutting garden and is a “must-have” for southern butterfly and hummingbird gardens. Additional plants can be propagated from firespike by division or cuttings. However, white-tailed deer love firespike too, and will eat the leaves, so be prepared to fence it off from “Bambi”.
This month, recognized by the Senate and Florida’s governor, reminds diggers why calling 811 before all outdoor digging projects is important to your safety. Before installing a mailbox, fence, deck, garden or tree make sure to call Sunshine 811 to have underground lines marked. 811 is the free national number designated by the Federal Communications Commission. It notifies utility companies, who in turn send their professional locators to identify and mark the appropriate location of underground line with paint and flags in colors that identify the utility type. The following colors represent the seven various utilities: red – electric, orange – communications (telephone, cable tv), blue – potable water, green – sewer, yellow – gas, purple – reclaimed water, and white – site of intended excavation. To learn more about color designation and their corresponding utility go to: http://www.call811.com/faqs/default.aspx. Locating marks are good for 30 calendar days. Any work beyond that requires another call to 811. If the marks are destroyed before your project is done, stop digging and call 811.
