February 2, 2010

Kontos Held Up In Court

SAF is urging growers to contact the Environmental Protection Agency (EPA) before February 8 and ask the agency to allow the continued production and use of Kontos insecticide, pending a new registration. Kontos is manufactured by Bayer Crop Science and distributed by OHP. It’s used to control adelgids, aphids, leafhoppers, mealybugs, psyllids, spider mites, spittlebugs and whiteflies. It was approved for ornamentals in greenhouses, nurseries and interiorscapes by the EPA in August 2008. A recent court order, however, requires re-registration and could prevent use of supplies growers already have on hand. EPA intends to issue a cancellation order for the insecticide as a result of a U.S. District Court decision in December, when the court ruled that the EPA’s failure to provide an opportunity for comment on registration applications vacates the registrations of that chemical. Even though EPA had approved the applications for Kontos, the registration will no longer be […]

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January 28, 2010

New Formulation For Greenhouse Insect Control

Central Life Sciences recently announced the availability of Enstar AQ, a new formulation containing the active ingredient (S)-Kinoprene that targets a variety of ornamental plant insects in greenhouses, shadehouses, lath houses and interiorscapes.   Enstar AQ prevents the larvae of whiteflies, aphids, glassy-winged sharpshooters, thrips, scales, mealybugs, leaf miners and fungus gnats from completing their lifecycles. When adult female insects come in contact with Enstar AQ, they begin laying sterile eggs.   “Enstar AQ offers the greenhouse grower an improved tool in eliminating some of the most damaging insects they face,” says Mark Taylor, business manager in the company’s Professional Agriculture Division. “This new, fast-acting Enstar AQ formulation provides an economical and effective solution that has a low phytoxicity profile.”   Enstar AQ is compatible with commonly used greenhouse and nursery adulticides like Mavrik Aquaflow insecticide, and its long-term quality control helps prevent insects from causing future infestations. Low phytoxicity […]

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January 25, 2010

New Registration & Label For Safari In California

The California label for Valent Professional Products’ Safari 20 SG insecticide has expanded to include a basal trunk spray application method. Additionally, a 2 percent granular formulation of Safari has also been registered for use in California. A super-systemic neonicotinoid with quick uptake and knockdown of a broad spectrum of invasive pests, including problematic pests like whiteflies, Asian citrus psyllid, mealybugs, soft and armored scale, Safari also provides applicators with unmatched flexibility, ease of application and residual control. Now available for use in California in two formulations, Safari can be applied as a basal trunk spray, soil drench, soil injection, foliar spray or granule. Safari 20 SG Already available for use in California as a foliar spray, soil drench or soil injection, an amendment to the existing registration in California now permits use of Safari 20 SG as a basal trunk spray. Safari 20 SG is labeled for use in […]

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January 23, 2010

Making The Case For Pesticide Use

Those of us who study issues related to ornamental plant production are well aware of the trend or demand toward reducing pesticide (insecticide and miticide) use based on the concerns associated with harmful effects to humans, animals, water and the environment. Federal and state laws or regulations limiting the number and types of pesticides available to greenhouse producers have challenged the ornamental industry, and ongoing reviews of pesticide classes like the pyrethroids and neonicotinoids may further limit the number available in the future. Our industry, however, can make a good case for the appropriate and proper use of both conventional and alternative pesticides in greenhouse production systems where alternative pest management strategies may not result in a saleable crop. Need For Quality First, it is critical a quality crop be produced to successfully compete in the global marketplace. The value and quality of the crop are based on aesthetics, and […]

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January 14, 2010

Bio-Controls & Thrips Management

Scott Ludwig, Extension program specialist for Texas AgriLife Extension Service, is a presenter and organizer for Pest & Production Management Conference. Recently, he answered a few questions about the February 25-27 Orlando conference and offered a preview of his presentation on bio-control organisms and thrips management. Educational sessions at Pest & Production Management Conference are shorter this year than past years. There are also breakout sessions at this year’s conference. What’s the advantage for attendees? Last year Jim (Bethke), Cristi (Palmer) and I decided to make changes to how the conference program was organized. Instead of having a single speaker cover one topic in 60 minutes, we thought having shorter sessions would keep the program more lively. This enabled us to also have multiple speakers coving different aspects of the same topic. For example, this year we have Mary Hausbeck and Paul Fisher both addressing pathogens in water. The shorter […]

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December 7, 2009

Previewing The Pest & Production Management Conference

The 26th annual Pest & Production Management Conference (P&PMC), presented by SAF and Greenhouse Grower, will take place February 25-27, 2010 in Orlando with an added emphasis on plant production. Historically, the conference has honed in on pest management strategies–and the P&PMC will continue to focus on pest management–but production topics like water quality, plant growth regulator use and alternative substrates will be addressed in educational sessions over a two-day period. Growers are welcome to attend an optional growing operations tour on Thursday, February 25. An additional $50 fee applies, but growers get the opportunity to tour greenhouse operations in the Orlando area. Educational sessions kick off Friday, February 26. Some of this year’s speakers include Jim Barrett (University of Florida), Margery Daughtrey (Cornell University) Jim Bethke (University of California), Scott Ludwig (Texas A&M University), Paul Fisher (University of Florida), Raymond Cloyd (University of Kansas), Sonali Padhye (University of Florida) […]

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September 21, 2009

SaniDate 5.0 Sanitizer OKed For New Uses

BioSafe Systems’ SaniDate 5.0 sanitizer/disinfectant has been approved for several new applications in California. Greenhouse-related uses include sanitization and disinfection of tractor trailers, treatment of agricultural irrigation waters, disinfection of greenhouse equipment and treatment of greenhouse evaporative coolers. Chemigation instructions are also included. SaniDate 5.0 is an activated peroxygen chemistry that eliminates human and animal health pathogens on contact. A chlorine alternative, SaniDate 5.0 is NOP compliant, EPA registered, and OMRI listed for use in organic crop production.   Users are no longer required to use NIOSH masks and respirators when applying the product. Personal Protective Equipment for SaniDate 5.0 now consists of goggles, a face shield, and rubber gloves while handling.   For more information, contact Rachel Leyland at Biosafe Systems.

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September 1, 2009

Enhancing Crop Protection

Surviving tough economic times is top of mind for Tim Landers (pictured at right), just as it is for many Americans in 2009. “House plants aren’t something people require to survive,” says Landers, owner of Benchmark Foliage, Inc., in Plymouth, Fla. “People are hunkering down and doing without a lot of frills. Even corporations have cut back on their interiorscaping. So, we’ve reduced production a bit and followed cost-cutting measures, and I believe we’ll come through just fine.” Still, foliage production has always been a labor of love for Landers. His interest in gardening dates back to eighth grade in his native Alabama, where he began helping his mother tend to her flower and vegetable beds. After receiving a degree in horticulture from Auburn University, he began working in nurseries across the Southeast, and he taught vocational horticulture to high school students for nine years. Tropical Delights Landers purchased Benchmark […]

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June 18, 2009

Joining The Battle Against Thrips

Raymond Cloyd is only half joking when he says the battle against western flower thrips is over, and that the thrips have won. “It’s a very precarious situation,” says Cloyd, an extension specialist in ornamental entomology at Kansas State University. “Resistance is out there.” The specter of western flower thrips has haunted the worldwide floriculture industry for decades. Thrips damage plants directly by feeding and indirectly by vectoring tospoviruses such as tomato-spotted wilt virus (TSWV) and impatiens necrotic spot virus (INSV). Thrips breed quickly inside greenhouses and are difficult to detect due to their tendency to hide inside closed buds or in the soil. As a result, they are often transported on plant material. This becomes especially serious if the hitchhikers are resistant to insecticides. “Thrips are a huge, huge issue for flowering ornamentals–anything where the feature of the plant is the flower,” says Joe Chamberlin, regional field development manager […]

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May 27, 2009

Taking Out Spider Mites

Two-spotted spider mite, Tetranychus urticae, is still one of the most destructive mite pests of greenhouse-grown crops. Because it is so destructive, greenhouse producers use miticides to alleviate problems and avoid excessive mite outbreaks. Several commercially available miticides are called mitochondria electron transport inhibitors, or METIs, which disrupt the production of energy or adenosine triphosphate (ATP).   But before any specifics are addressed, it’s important to note the significance of the mitochondria. The mitochondrion is a membrane-bounded organelle that is associated with intracellular respiration. It is a major site of ATP production and oxygen consumption in cells, and it retains enzymes involved in the citric-acid cycle and in oxidative phosphorylation. Overview Miticides active on mitochondria include acequinocyl (Shuttle), pyridaben (Sanmite) and fenpyroximate (Akari). These miticides either inhibit NADH dehydrogenase (complex I) associated with electron transport, act on the NADH-CoQ reductase or bind to the Qo center or cytochrome bc1 (complex III) […]

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May 6, 2009

New Orchid Enemy Found In Florida

University of Florida Insect Diagnostician Lyle Buss collected a specimen of the orchid mealybug (Pseudococcus dendrobiorum) on Phalaenopsis orchids in a greenhouse in Gainesville on March 27. Not only is this the first find in Florida, it is the first finding of P. dendrobiorum in the Western Hemisphere. According to Lyle Buss of the University of Florida, the plants originally came from several different orchid growers, so it has not been determined where the mealybugs came from originally. Adults and immatures of this mealybug are grayish pink in color. Wax filaments are present around the entire body, with the two or three pairs of filaments at the tip of the abdomen being slightly longer than the rest. A patch of white, waxy secretion is often present on the roots surrounding the mealybug. Live specimens of P. dendrobiorum most closely resemble the pineapple mealybug in appearance. P. dendrobiorum is native to […]

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April 29, 2009

A Glance At An IPM Program

Orchid and bromeliad grower Silver Vase developed its Integrated Pest Management (IPM) program about 10 years ago to satisfy customers looking for sustainable products and to ensure a clean environment for both customers and the company’s employees. IPM staff at Silver Vase, as expected, limits the use of pesticides on plants and relies on a clean greenhouse environment to produce untainted products. Beneficial insect species are incorporated at strategic and timed intervals to control unwanted pest infestations, and these practices guarantee delivery of residue-free plants to the consumer. Silver Vase breaks down its IPM program like this: 1. All new and young live goods are brought in bare-rooted. This allows Silver Vase to create its own soil media for its orchids and bromeliads. Soil mites are added to mixtures in stage one to prevent and eat the larva that produces fungus gnats. The beneficial mites are released to live amid […]

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