August 29, 2007

GROWER TOOL: Whitefly Management

Just in time for the second month of your poinsettia production, Syngenta has put together a production calendar to help growers manage whiteflies along with pesky mites, mealybugs and thrips. The rotational program contains suggested treatments for various stages of poinsettia production if insect pressure warrants it. The suggested treatments are among the msot effective for controlling both B and Q Biotypes, and the treatments rotate with different modes of action to prevent resistance from developing. Download the production calendar here.

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August 22, 2007

Whitefly Watch

Whitefly control has been a challenge this year, the Society of American Florists (SAF) reports. In order to avoid serious problems later in the season, scientists in the field and on the Ad Hoc Whitefly Task Force advise growers to watch their spray programs carefully to be sure they are working. Resistant whiteflies, and/or increased numbers of whiteflies, have been reported by growers in several parts of the United States. It is extremely important that growers who notice apparent resistance in whitefly populations send whitefly samples for biotype identification. The Q-biotype, first discovered in the United States in 2004, is resistant to many, but not all, of commonly used chemicals. Is the B-biotype developing stronger resistance as well? Only grower-scientist cooperation can provide that answer. Samples can be sent to any of several labs with guarantees of anonymity, and no regulatory action will follow. But knowing which biotype a grower […]

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July 11, 2007

IR-4 Database For Biopesticides

Wondering what biopesticides are available to use on your crops? The Interregional Research Project No. 4 (IR-4) has launched a biopesticide/organic data base that is searchable by crop, pest and state. Specialty crops include ornamentals, fruits, vegetables and turf. Check it out at

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July 5, 2007

Pest Management Guide

BASF Turf & Ornamentals has published a free pest management guide to help nursery, greenhouse and turf maintenance professionals. The guide addresses fungicides, herbicides and insecticides. Interested growers can order guides at the BASF ornamentals-focused Web site:

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April 4, 2007

Pylon Labeled For Thrips

OHP Inc.’s miticide/insecticide Pylon is now labeled for thrips control pending state registrations. For more information, visit

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March 28, 2007

Tips On Mealybugs And Aphids

Michigan State University Entomologist David Smitley shares control strategies at

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March 21, 2007

Integrated Pest Management Survey

Steve Newman at Colorado State University is conducting a survey to design online training modules in Integrated Pest Management for commercial greenhouses. Your input as growers would be greatly appreciated. To participate in the confidential survey, visit

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February 28, 2007

Oregon Growers Host SAF’s Pest Management Conference

More than 120 growers, allied industry members, educators and researchers gathered for the Society of American Florists’ (SAF) Pest Management Conference in Portland, Ore., over the weekend. GG’s Editor Delilah Onofrey was on location gathering the latest in insect and disease control and visiting growers and garden centers in the area, along with the big Yard, Garden & Patio Show. For highlights of the grower tour, featuring Clackamas Greenhouses, Oregon Flowers and Woodburn Nursery & Azaleas, visit her blog at:

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