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Category: Efficacy

Fenamidone Efficacy & Crop Safety – 2020

Posted on February 11, 2020March 25, 2024

From 2004 to 2012, fenamidone (FenStop, FenStar) was screened through the IR-4 Program as drench or foliar applications for effacay against nine Phytophthora species causing root rots and

Posted in CropSafety, Efficacy, Pathology, Plant Pathology Crop Safety, Plant Pathology Efficacy

Oxalis Efficacy Summary – 2020

Posted on January 31, 2020March 25, 2024

Nursery growers have had a longstanding battle to control weeds in environmental horticulture crops. Oxalis (Oxalis spp.) is one of the most difficult weeds to control in

Posted in Efficacy, Environmental Horticulture Program, Weed Science, Weed Science Efficacy

Downy Mildew APHIS Research Summary

Posted on November 11, 2019August 20, 2021

Over a 5-year timeframe starting in 2013, the team of researchers listed above investigated several downy mildews – Impatiens and Cucurbit, primarily,

Posted in Efficacy, InvasiveSpecies, Pathology, Plant Pathology Efficacy

Scale and Mealybug Efficacy – 2019

Posted on October 18, 2019April 23, 2024

Managing scale and mealybug insects presents unique challenges. Products with contact modes of action must be applied at specific timings in order to reach the most susceptible crawler stages.

Posted in ArchivedEfficacy, Efficacy, Entomology

Mite Efficacy Summary – 2019

Posted on June 11, 2019August 20, 2021

From 1999 to 2016, 34 active ingredients were tested mainly as foliar applications against several genera and species of mite pests on ornamentals and vegetables.

Posted in Efficacy, Entomology, Entomology Efficacy

Beetle, Borer, Weevil & White Grub Efficacy – 2019

Posted on May 7, 2019April 23, 2024

Collectively, managing coleopteran insects can be challenging because the adult and larval stages may both cause damage and sometimes occur on different hosts or on different plant parts.

Posted in ArchivedEfficacy, Efficacy, Entomology

Algal Leaf Spot Efficacy Summary – 2019

Posted on April 3, 2019April 23, 2024

At the IR-4 Environmental Horticulture Program Workshop in 2015, Algal Leaf Spot Efficacy was selected as a regional special project for the Southern Region

Posted in Efficacy, Pathology, Plant Pathology Efficacy

Botrytis Efficacy Summary – 2019

Posted on March 28, 2019April 19, 2024

At the IR-4 Ornamental Horticulture Program Workshop in 2011, Botrytis Efficacy was selected as a high priority project to expand the knowledge and list of fungicides available to growers for these diseases.

Posted in ArchivedEfficacy, Efficacy, Pathology

Fusarium Efficacy Summary & Literature Review – 2018

Posted on October 3, 2018April 17, 2024

From 2001 to 2015, numerous products representing 32 active ingredients were evaluated in greenhouse and field trials as soil drench, soil incorporation, foliar, in-furrow, drip irrigation or tuber

Posted in ArchivedEfficacy, Efficacy, Pathology

Rhizoctonia Efficacy Summary & Literature Review – 2018

Posted on September 4, 2018August 20, 2021

From 1999 to 2016, numerous products representing 36 active ingredients were evaluated in several greenhouse experiments as soil drench, soil incorporation, foliar or soak application,

Posted in ArchivedEfficacy, Efficacy, Pathology

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This website is based upon work that is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, under award numbers 2022-79111-38469 and 2021-34383-34848 with substantial cooperation and support from the State Agricultural Experiment Stations, USDA-ARS, USDA-APHIS, and USDA-FAS. In accordance with Federal Law and U.S. Department of Agriculture policy, this institution is prohibited from discriminating on the basis of race, color, national origin, sex, age or disability.

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  • About IR-4
    ▼
    • Annual Reports
    • Careers
    • Contacts
      ▼
      • Headquarters Staff
      • National Directory
      • Regional Field Coordinators
    • History
    • Mission & Vision
    • News
    • Outreach
    • Participants in the Process
  • Food Crops
    ▼
    • Biopesticide Regulatory Support Program
    • Crop Grouping
    • Integrated Solutions
    • International Programs
    • Residue and Product Performance
  • Environmental Horticulture
  • Events & Training
  • Stakeholder Resources
    ▼
    • Database: Food Crops
    • eQA/eDOCs
    • Database: Environmental Horticulture
    • Databases: Biopesticides and Organic Support
    • Glossary of Acronyms
    • Upload Files
  • Submit a Project Request