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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research Unit » Research » Research Project #429569
Research Project: Minor Use Pesticide Testing on Floral and Nursery Crops

Location: Horticultural Crops Research Unit

2016 Annual Report


Objectives
Evaluate various fungicides, insecticides, and herbicides for phytotoxicity and/or efficacy on floral and nursery crop plants in support of label expansion through the IR-4 regional project.


Approach
Selected floral and nursery crop species will be grown in the greenhouse, ground beds, or field plantings and treated according to specific protocols (timing, concentrations) with selected fungicides, insecticides, or herbicides. In some cases, chemicals will be tested for efficacy, but mostly they will be tested on plants for phytotoxicity. Data will be submitted for inclusion in the IR-4 Minor Use Testing Program.


Progress Report
This report documents progress on project 0500-00007-111-00D, which started October 1, 2015, and replaces project 0500-00007-104-00D. Researchers in Corvallis, Oregon are conducting 20 crop safety trials. These trials are being conducted with six different fungicides on a wide range of plant material. Four trials are evaluating Tourney 50WDG (metconazole), two trials are evaluating Mural, A18126B WDG (benzovindiflupyr + azoxystro), five trials are evaluating Orkestra Intrinsic, BAS703 06F/BAS703 01F (fluxapyroxad + pyraclostrobin), two trials are evaluating Alibi Flora, A13703G (difenconazole + azoxystrobin), three trials are evaluating S2200 4SC (mandestrobin), and four trials are evaluating OxiPhos (mono and di potassium salts of phosphorus acid + hydrogen peroxide). Treatments included a water control application. ARS scientists are also evaluating the efficacy of select fungicides and biocontrol agents against Phytophthora plurivora on Rhododendron. Seven chemicals are being tested. These include Orondis Gold 200, A21008A (oxathiapiprolin), BAS 703 (fluxapyroxad), MBI-110 (Bacillus amyloliquifaciens strain F727), PreStop (Gliocladium catenulatum strain J1446), Proud 3 (thyme oil, 5.6%), Rhapsody (Bacillus subtilis strain QST 713), and Micora (mandipropamid). This trial also includes controls such as industry standards (Subdue Maxx, Allude) and an untreated uninoculated treatment.


Accomplishments


None.