5 years ago

THE TENNESSEE ROSEBUD - Tennessee Rose Society

THE TENNESSEE ROSEBUD - Tennessee Rose Society

Page 4

Page 4 TENNESSEE ROSEBUD GOOD BUGS---BAD BUGS By: Katherine Brennan, ARS Consulting Rosarian, As global temperatures rise, many insects are shifting their ranges northward. We will see along with our good bugs, more severe infestations from both local and exotic pests such as gypsy moths, bagworms and vine weevils. We will be dealing with pests we have never had in the garden. We will see them early in the spring and later in the fall. Some pests like whiteflies, aphids and spider mites flourish during heat waves. As climate change induces extreme weather patterns, our roses will become more stressed and less able to fend off pests and diseases. In May this year, I did a workshop at Meadow View Garden Center on “Diseases and Bugs in Our Gardens.” During my research and preparation for this talk, I learned there are more good bugs than there are bad bugs. Nature’s way is the good bugs are supposed to take care of the bad bugs. However, we both know that does not always happen. Below are lists of the most prominent good and bad bugs you will find in your garden. Their description will help you to properly identify them. Meanwhile, be on the lookout for “new” bugs and investigate how to safely and effectively manage them. Share your findings with fellow gardeners and good luck in your gardens! GOOD BUGS Aphidius wasp: 1/8” long and dark in color with transparent wings. They will rid your garden of all Aphids. Assassin bug: ½” long with broad bodies, sharp curved beak, bristly front legs, brown or black in color. They will rid your garden of aphids, most worms, beetles, earwigs and lace bugs. Big eyed bug: 1/6” long , oblong, wide-set eyes, gray, black or brown with clear wings. They will rid your garden of aphids, beetles, spider mites, thrips and whiteflies. Ground beetle: 1/8”-1½” long with shiny, hard-shelled bodies. Dark in color with large mandibles. They will rid your garden of caterpillars, potato beetle, cutworms slugs, snails, and tobacco bud worm. Hover fly: Looks like small wasps, black and yellow or white striped bodies. Hover like hummingbirds. ¼-1/2” long They are pollinators and will rid your garden of aphids, cabbage worms, mealy bugs and caterpillars. Lacewing: 1” long, slender, light green with large transparent wings. The larvae can consume up to 100 aphids per day. They will rid your garden of aphids, caterpillar eggs, cabbage worms, beetle larvae, corn earworms, whiteflies, spider mites and some scales and lace bugs. Ladybug: ¼” long with rounded bodies with black spots. Wings are orange to red with white on the thorax. Ladybugs rid your garden of aphids, beetle larvae, lace bugs scale, spider mites, whiteflies and eggs of other insects. Parasitic wasp: 1/32-1/2” long non-stinging wasps. Some have ovipositors that look like stingers but are not. They have slender, elongated antennae. Parasitic wasps rid your garden of aphids, beetle larvae, bagworms, cabbage worms, cutworms, leafminers, mealy bugs, sawfly, scale, tent caterpillars, tomato hornworm and whiteflies. Praying mantis: Can reach up to 5” long, shades of brown to green in color. Slender in body with large front legs. Heads can swivel 180 degrees with large compound eyes. They rid your garden of aphids, asparagus beetle, earwigs, leafhoppers and squash bugs. Spider: They come in all sizes and colors from drab brown to bright colors with various patterns. They have good hearing with an exceptional sense of smell and touch. Wolf spiders are very good for your garden. They will rid your garden of beetles, aphids, cutworms, fire ants, lace bugs, sawfly, spider mites, and squash bugs; but all spiders are predators. BAD BUGS Aphid: Tiny, 1/8” long with soft bodies, green, yellow, brown, red, gray or black. Bagworm: Caterpillars living inside a slender, silk bag (1 ½” to 2” long). Bags can be found on evergreen trees. Cabbageworm: Caterpillars are light green with faint yellow stripe down their side. Cucumber beetle: Striped beetles are yellow with 3 black stripes. Spotted beetles are greenish yellow with 11-12 black spots on the wing covers. Cutworm: 1 ½” long caterpillars curl into C shape, brown or gray in color; over-winter just below the soil surface. Earwig: 1/2-3/4” long and are dark brown in color with large curved rear pinchers. (Continued on page 5)

BAD BUGS (Continued from page 4) Summer 2010 Newsletter Page 5 Japanese beetle: ½” long with metallic green and copper wings. Larvae are a C-shaped, grayish-white grub that spends winter several inches below the soil. Lace bug: 1/8” long with iridescent, lace-like veination wings. They leave tiny black specks called tar spots on leaves. Leafminer: 1.8-1.4”long. They are flies with black and yellow markings. Tunneling larvae leaves tracks looking like a road map on the leaves. Mealy bug: 1/8”long. They are soft, oval-shaped insects, covered with white or gray fuzz. Their feeding leaves clusters or clumps of wax or fuzz. Mexican bean beetle: Looks like our Ladybug. Wing covers are copper with 16 black spots. They are like Ladybugs on steroids. Causing skeletonization of the leaves, leaving only the veins. Sawfly: Adults look like wasps. Larvae caterpillar does all the damage. They are tiny up to 1” long and are hairless and yellow, green, black or brown. Chews holes in leaves. Spider Mite : 1/20”long, red in color. Shake a leaf over a white piece of paper to determine an infestation. Squash bug: 5/8” long, brown or gray in color w/flat backs. All emit an unpleasant odor when crushed. Tobacco budworm: 1” long, yellow to green in color. Devour flower buds and plant foliage. Tomato hornworm: 3-5” long, thick as your thumb, green in color w/”horn” in the rear. Defoliate a plant in few days. Whitefly: 1/20”-1/10”long, white in color and exude a sweet excrement called “honeydew” (a sticky film on leaves). MEMBERS VISIT AREA ROSE GARDENS By: Mary Frances Carlson One would think that after a busy and very successful Spring, our TRS members would stay at home and rest; but in late May, a number of us traveled to the Chattanooga area to visit the beautiful rose gardens of Dan and Barbara Brickman and Jeff and Cindy Garrett. Leaving early on Sat. morning, Ron Alexander helped to wake us up with his amazing sense of humor so we could make this fairly long trip. Dan, who is perhaps best known for his love of propagating roses, began growing roses in 2004 after moving to Chattanooga. Like many of us, he started with only 8 roses and the help of Jan Wyant at an Ace Hardware Store. His only other source was reading Ortho’s book, COMPLETE GUIDE TO ROSES. Dan’s first speaker at a rose society meeting was none other than our Ted Mills. You can’t do any better than that! Dan began exhibiting roses and won his first Queen with ‘Let Freedom Ring,’ thanks to a suggestion from Mary Bates. His favorite roses are ‘Veterans’ Honor,’ ‘Moonstone,’ ‘Gemini,’ ‘Louise Estes,’ ‘Let Freedom Ring,’ ‘Here’s Sam,’ ‘Marlon’s Day,’ and as he puts it, “…whatever rose is blooming and is the prettiest at the time.” Dan’s special advice for success in growing roses is to do it religiously and without exception. For beginners, he would say to buy a $5 bush and plant it in a $50 hole and adopt a good spray program. As of this date, Dan has about 120 roses with half of those in containers. After a lunch break, our next stop was at the beautiful lakeside home of Jeff and Cindy Garrett near Soddy-Daisy. These two expert rose growers have been around for a long time and have spoken several times to our own society. In regard to growing roses, they help them get off to a good start with the help of a very attractive greenhouse that blends in perfectly with their landscape, which includes a variety of other plants displayed as perfectly as their roses in the extensive patio area behind their home. The Garretts begin each season with liquid lime sulfur after pruning has been done and start their fertilization program with Mills Magic Mix and use Mills Liquid EasyFeed or other liquid products at least a couple times a month. During the hot weather, they use their liquid products weekly at half strength to keep the roses hydrated. Jeff advises to put forth a lot of effort throughout the entire growing season, which will pay big dividends in the fall and next spring. Editor’s notes We have included underlined texts throughout the newsletter which are hyperlinks to web sites and e-mail addresses. Just click on the link to visit the website.

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