COLD WEATHER DAMAGES JAPANESE MAPLES/GRAPES
All over town, the Japanese maple leaves were turning brown and falling off the trees. The new foliage of grape varieties has withered on the vine. The extremely cold conditions in May damaged the leaves of Japanese Maples and grape varieties this year according to Ricky Kemery, Allen County Horticulture Educator.
Trees and vines in lower areas or exposed areas were affected the most. The maple and grape leaves were at a stage that was the most susceptible to frost damage. Ice crystals actually form inside the cells of the leaves during a frost. This gave the leaves a water-soaked appearance before they eventually turned brown. In most cases the plants will recover and put on new leaves this summer. Grape harvest may be delayed or reduced. Dead leaves may be removed, but pruning will probably not be necessary, since the twigs or vines were not damaged.
Folks can use a fertilizer applied with a Ross Root Feeder or a root stimulator such as Greenshield Root Bio-stimulator to help the plants recover from the early spring shock. A certified arborist should be contacted to fertilize larger trees. For more information, call the Allen County Extension Office at 481-6826 and press option 2 for the Gardening Hotline. Or access information online at www.ces.purdue.edu/allen.
LOOK FOR “ANTHRACNOSE” THIS YEAR
Folks with Oak, Ash, and Sycamore trees should realize that the cool, wet spring has favored leaf fungal “blotches” on the tree leaves. The fancy word for the blotches is “anthracnose”. Most fungal blotches start out by progressing along the leaf veins, but can soon develop into irregular brown to black patches, which distort and disfigure the leaves. Sycamore and Oak trees in Northeast Indiana may lose most of their leaves this spring.
Most fungal blotches on Ash, Oak, and Sycamore rarely do permanent harm to the tree. Fertilize in late June if the tree has lost a significant part of its leaves. This will help the tree grow back leaves so it can store “food” for next year. Homeowners could also hire a certified arborist to deep-feed their trees using a slow-release fertilizer. If the tree is recently planted, and small enough for you to spray safely, then a fungicide such as Daconil 2787 (following label directions) can be used to slow the disease down. Over time the trees will eventually recover as the season progresses.
The Master Gardeners of Purdue Cooperative Extension Service of Allen County Indiana are proud to announce their third annual Advance Bulb Sale, Bulbapalooza 2002! This advance sale runs July 1st through July 22nd. We are offering 13 choice varieties of tulips, daffodils, crocus, anemones, and hyacinths. You can reserve your purchase now and pick them up at planting time. Then on October 12th we will have an open stock sale on over 30 varieties which includes the advance sale 13 and many other very special bulbs.
By purchasing in advance we guarantee you’ll get the items you want: at the open stock sale you can pick up more of the same (in case you miscalculated) or try something different. And ‘different’ is the key word here. Although a few are old favorites, all varieties were chosen because they offer something special. You can pick up a descriptive brochure and order form for Bulbapalooza 2002 at the CES Office at 4001 Crescent Avenue, Fort Wayne, IN 46815. Photos of the flowers are also available at the CES Office if you have questions, please call the Master Gardeners at 481-6826.
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