Thursday, October 15, 2009
Plant Name Pronunciation
Wednesday, October 14, 2009
Brown Marmorated Stink Bug Arrives
It is official. The brown marmorated stink bug, Halyomorpha halys, has been identified in North Carolina. First detected about two weeks ago in the Winston-Salem area, there has been another report in the coastal plain region. Originally found in Allentown, Pennsylvania in 2001, it is now established in many states across the country especially along the east coast. It is an easy traveler in things like motor homes. There is a long list of hosts, both ornamental and agricultural from maple and birch to pecan, peach, apple and cucumber. Adults emerge from overwintering about April. All instars have deep red eyes. Early nymphs are red, then almost black, and finally brown in color as adults. They are typical stink bugs in most ways and damage fruit and foliage with their feeding (proboscis) and saliva. There is a single generation in northern states. To add to their annoyance, they like to overwinter in protected places such as structures. This is where you are most likely to first notice them.by S. Bambara, M. Waldvogel & S. Frank
Friday, September 25, 2009
Re-Blooming Poinsettias
How do I get my poinsettia to re-bloom? I normally get this question after Christmas but I just had a question today about how to get a poinsettia to bloom for Christmas.
If you saved your poinsettia from last year, it is time to start thinking about the re-blooming process. By now you should bring your plant back indoors if it has been outside over the summer. Continue to provide bright light and keep the soil in the pot moist.
In early October you should begin to provide different treatments during the day and night. During the day you should provide bright light and a temperature between 70-80˚. During the night you need complete, uninterrupted dark and a temperature between 65-70˚. The plant needs this uninterrupted dark in order to produce the colored bracts. Keep the plant in a closet or other completely dark location from 5pm till 8am each night.
Continue this schedule till around Thanksgiving when the bracts begin to develop color and then discontinue the day/night treatments. At this time it is important to provide at least 6-8 hours of high intensity light until the bracts are completely colored. Once this happens you can move the plant to the location where you want to display it for the holidays.
I usually tell people to not even try to re-bloom poinsettias because it is much easier to simply buy a new one each year. But if you must try, I hope this helps and let me know if you are successful.Thursday, September 10, 2009
Dogwood Defoliators
I have seen at least five samples of red twig dogwoods here in the Extension office with completely defoliated twigs. The culprit is known as the Dogwood Sawfly. Dogwood Sawfly, Macremphytus tarsatus, is a significant pest to dogwood (Cornus) species. Because the Dogwood Sawfly takes on several forms while in the larval stage, it may not be easy to identify. The larvae strips plants at the end of season, normally just before late August.The wasp-like adult sawfly lays eggs that hatch into larvae, the first instar of which is an almost translucent yellow. Look for groups of these larvae on the undersides of leaves that are being skeletonized. The second instar appears to be covered with a chalky powder, and the last instar is a one inch long creamy-yellow larva that has a shiny black head and black spots (see photo).
Normally damage is short lived, therefore control is not warranted.
Wednesday, August 26, 2009
NC Apple Festival - Recipe Contest
Registration Form
Polk County Cooperative Extension is co-sponsoring a Pesticide Pick Up Day on Thursday, September 3rd. It will be held from 10 am to 2 pm at the 4-H Center on Locust Street in Columbus, NC.If you have unwanted or unused pesticides that you no longer use, please bring them in a labeled container and they will be gladly accepted. There is no charge to drop off these products. We will not accept paints or paint thinners.
For more information, contact John Vining at (828) 894-8218.