June 12, 2008

New Product Shorts

Cleary: TriStar 30 SG is a foliar insecticide with broad spectrum control of key, economically important insect pests like aphids, mealy bugs, caterpillars, whiteflies, thrips, leaf-eating beetles and leafminers. TriStar 30 SG is odorless, mixes easily and is compatible with many tank mix partners. It’s now available in 2-pound containers. www.clearychemical.com Easy Reading Northwest Horticulture: The Big Green Book, a 136-page catalog of information and suggestions to help growers succeed in the greenhouse and nursery, is now available. The book has information on quality cuttings, plugs and field-grown liners, and also details programs growers can use for their perennials, roses and ornamental grasses. A selection guide for choosing the right varieties and colors and a planning matrix are included, as well. www.northwesthorticulture.com Innovative Pot Pöppelmann: The TEKU Premium Pot comes in all common sizes and shapes and with multi-hole, three-level drainage to provide faster irrigation and better aeration. The facet […]

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June 12, 2008

New Product Shorts

Virus Detector Agdia: The HVX ImmunoStrip (above) detects Hosta Virus X and works in minutes. The ImmunoStrip has a guaranteed shelf life of one year and is portable, so tests can be administered before purchasing plants, accepting shipments or throughout the season. www.agdia.com Improved Fungicide BioSafe Systems: ZeroTol broad spectrum fungicide has been updated with a new label featuring a sleek front design and tear-away instruction booklet with helpful, easy-to-read rate charts. The redesigned label better describes the product for new users, and the instruction booklet is designed to help applicators access features and benefits of ZeroTol. www.biosafesystems.com Reglazing Solution DEGLAS: Acrylic sheet glazing systems offer protection against the yellowing of plastic greenhouse coverings like polycarbonate. Systems can be fitted to existing structures and are adaptable to any design requirements. They’re also guaranteed not to yellow for 30 years. www.deglasamericas.com Speedy Machinery JAVO: The JAVO Directomatic is a combination of […]

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June 12, 2008

Directing Light

In an effort to better serve its greenhouse customers, Polygal Inc., a world leader in technology and manufacture of polycarbonate multi-wall and corrugated greenhouse coverings, is expanding its greenhouse covering line to include polyethylene Polyheilos films. With this introduction, Polygal will able to offer the greenhouse distributor and OEM a broad range of greenhouse cover products from one basket.  New Films For Light Control The new Polyheilos films are proven multi-layer technology, durable and long lasting. The films offer a selection of solar energy, transparency and thermal insulation and are economically priced. Polyheilos films’ light diffusion characteristics greatly improve photosynthesis efficiency by improving light dispersion, which is especially important for self-shading, tall and trellised plants. In addition, an anti-drip additive in selected films raises the surface tension of the film to improve light transmission and prevent water dripping on plants, which reduces the incidence of disease. Also available are thermal […]

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June 12, 2008

New Product Shorts

New Plug Tray Blackmore Co.: The latest addition to the Blackmore line of plug trays is the 200 Star Deep. Fluted walls give cells more strength and act as a conduit to provide more oxygen to the root zone. This tray also has an angled label ramp and 3/4-inch turned over top to give it more rigidity. Each cell is 2 1/4 inch deep with a 20 cc volume. Smart Sensor Dynamax, Inc.: The WET-2 Sensor has crucial applications in precision horticulture and soil science research, usable in both soils and artificial substrates. It measures pore water conductivity (ECp) exceptionally and is often used as an indicator of the amount of fertilizer available for plant growth. It monitors nutrient levels and takes the guesswork out of monitoring crucial information quickly and accurately. Earlier Thrips Detection Biobest N.V.: ThriPher is a new pheromone that contains a sexual aggregation pheromone to attract […]

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June 11, 2008

Going Geothermal

Mark Elzinga held nothing back when he built his four-acre organic greenhouse at Elzinga & Hoeksema in Portage, Mich. He spent money, took risks and entrusted a lot of people with the future of his operation–people like Stephen Hamstra, executive vice president at GMB, who helped design the solar-geothermal energy system that should provide 80 percent of Elzinga’s heating needs. The GMB-designed system should cut down on Elzinga’s energy costs, as well, and significantly reduce the greenhouse’s carbon footprint. “The geothermal hybrid is a new thing,” Hamstra says. “I’m not aware of a greenhouse that’s done it like this. We presented the concept in 2006 in a white paper at the International Ground Source Heat Pump Association (IGSHPA) annual meeting in Albany, N.Y., and there was a lot of favorable response.”  One Of A Kind Elzinga was among the first to take notice, and he now has an impressive solar-geothermal system […]

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June 11, 2008

Master Builders

While most growers got into the greenhouse business because they love to grow plants, others really take pride in building greenhouses and have dedicated employees and crews. One prime example is George Lucas of Lucas Greenhouse in Monroeville, N.J. While he and his wife founded the business with just 9,000 square feet of greenhouse about 30 years ago, today Lucas Greenhouse spans 630,000 square feet and ranks at No. 100 on our Top 100 Growers. The company has undergone three major buildouts with Nexus Greenhouse Systems since 2002 and just constructed 170,000 square feet of Dual Atrium greenhouses with a glass roof and polycarbonate sides and gables using its own crews. This summer, Lucas will be adding another 130,000 square feet. Where is all this growth coming from? Young plants. Forty percent of production is propagation and prefinished plants, and the rest is finished plants sold to independent garden centers within […]

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June 11, 2008

New Product Shorts

Unique Fungicide BioWorks: Cease fights both fungal and bacterial pathogens, and it provides plant and environmental safety with a four-hour re-entry interval. Cease controls disease using multi-site modes of action for resistance management. The National Organic Program approved Cease for use in organic production. www.bioworksinc.com Better Protection Fine Americas: “Improving Plant Quality In Annuals And Perennials With Concise” is a 44-page color guide edited by Virginia Tech’s Joyce Latimer and North Carolina State’s Brian Whipker. Michigan State Extension specialist Erik Runkle provided input for the publication, which provides guidelines on Concise applications for a variety of plants. www.fine-americas.com Plants With Style Hort Couture: The Haute Tote is a fashionable plant sleeve that has a handbag-style look. Haute Totes come in cases of 250 sleeves, and its design fits 6- to 8-inch pots. www.hortcoutureplants.com Dynamic Packaging Landmark Plastic: Thermoformed nursery trade gallon pots have in-rim tag slots, 12 large, bi-level drainage […]

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June 11, 2008

Building A New Greenhouse

So you’re thinking of building a new greenhouse? Here are some tips I’ve learned building our new propagation range in Fresno, Calif. The first thing on your list should be to create a master plan on how your structures will be laid out now and potentially in the future. This should include all utilities entering the greenhouses and any special requirements for your equipment. You might not build on your greenhouse for a while, but you should always give yourself the option of adding on in the future without any obstructions. Questions you need to address during this process: – Can the new greenhouse(s) be built on our existing property without any modifications? – Do we need to move older structures to accommodate our new greenhouses? To keep the flow of your new greenhouse, it might be better to move some of your existing structures. – What are the timelines to […]

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June 11, 2008

New Product Shorts

Filter Away Orival, Inc.: Starting at 3/4 inch and continuing up to 24 inches, Orival can provide any filtration system from 8 to 12,000 gpm. Orival, Inc. has been providing greenhouse irrigation systems for more than 20 years. Pallet Success Northwest Horticulture: The Pallet Shipper program from Northwest Horticulture is a crush-resistant packaging system that is stacked on pallets, delivering dormant trays strait to growers’ doors. The Pallet Shipper stacking system allows air to circulate through the plants during shipping. Shipping on pallets is also a more cost-effective method compared to boxes and a great option for customers placing small orders. Pallet shipper is available for orders as low as 72 trays. Speed, Muscle & Brains Wadsworth Control Systems: Wadsworth’s new 3 RPM VC 2000 Motor offers unique override protection, which stops the motor if binding or obstruction occurs. Its faster drive powers roof panels, wing vents and roll-up walls […]

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June 11, 2008

New Product Shorts

Everywhere Fungicide BASF: Pageant fungicide is labeled for use in nursery, greenhouse and landscape sites. It features a combination of new active ingredient boscalid with pyraclostrobin, giving growers one of the industry’s broadest spectrum foliar fungicides. www.betterplants.com New Plug Tray Blackmore Company: The latest addition to the Blackmore line of plug trays is the 242. Fluted cell walls are extra strong and act as a conduit for providing more oxygen to the root zone. The tray also features an oversized 3⁄8 inch diameter drain hole, angled ramp and 5⁄8 inch lip for rigidity. www.blackmoreco.com Easy Seeding Seed E-Z Seeder: The E-Z Seeder is a plug popper that takes better care of plugs while taking all the work out of dislodging them. It can be operated by placing the rooted plugs over pegged dislodger, sliding handled rods through the plug tray and placing depressor over rods and pushing down. The E-Z […]

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June 11, 2008

Controller Savings For The Smaller Grower

Many affordable controllers add settings like DIF and night set-back. A controller does not have to be elaborate or complicated to save you money and improve your crop quality. It does not have to control every operation of the greenhouse to be effective. Replacing thermostats with a simple controller that handles only the heating and cooling will save you energy and improve your crops. Many affordable controllers add settings like DIF, night set-back, humidity control and curtain control and still stay price competitive with thermostats.  Single Temperature Reading One of the greatest cost savings that a controller produces versus thermostats is from the coordination of heats and cools from one temperature probe. It is almost universal that growers will tell you that in a greenhouse with thermostats, you will, sooner or later, get heats and cools running at the same time. This can happen when the heat thermostat is located […]

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June 11, 2008

Avoiding Overheating

You can block heat using expensive computer or manually operated shades or by applying colored coatings to glass. Shades are prone to operational problems and use energy. Colored coatings need to be removed to maximize light transmission after the hottest time of the year. For existing glass greenhouses, another option is to install clear, colorless window film that will block unwanted heat while allowing in desirable natural light. Once installed, such film may last up to 20 years. It does not need to be removed, does not change the appearance or visual clarity of the glass, does not need special care and will not fail to perform because of computer or mechanical malfunction. Affix it and forget it. Tinted window films do reduce heat into greenhouses, but they can also reduce a significant percentage of visible light through the glass, according to V-Kool President & CEO Marty Watts. “Most conventional […]

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