Welcome to Pecan ipmPIPE

The mission of the Beltwide Pecan ipmPIPE Program is regional participation in a dynamic, integrated national system that provides useful, reliable information and tools for IPM practitioners throughout the "pecan belt," the principal states where at least some commercial pecans are grown. Our vision is to develop the ipmPIPE to help maximize economic returns, and improve social welfare and environmental health by promotion of efficient and coordinated IPM decision support systems. Read more about the national system's background and mission.

Aphid Management Survey

Blackmargined pecan aphids. Photo by Nicole Boatman.
Blackmargined pecan aphids.
Photo by Nicole Boatman.
Black pecan aphid damage. Photo by Bill Ree.
Black pecan aphid damage.
Photo by Bill Ree.
In the past 20 to 30 years, pecan aphids, which include the blackmargined aphid (Monellia caryella), yellow pecan aphid (Monelliopis pecanis) and the black pecan aphid (Melanocallis caryaefoliae), have been able to adapt and develop resistance to several classes of insecticide compounds, i.e. organophosphates, pyrethroids.  Resistance now seems to be happening with the popular neonicotinoid-based compounds (e.g., imidacloprid, acetamiprid, thiamethoxam).

Our pecan specialists have created a survey to gather specific information from producers on what insecticides and how many applications are being used to manage aphids. Information from this survey is confidential and will be used by pecan entomologists and researchers to help develop guidelines for insecticide applications for pecan aphids, . Your contribution to this survey is greatly appreciated. Go to the Aphid Management Survey >>>

Updates


News

December 2011

November 2011

  • New video on pecan kernel development and how it relates to timing your pest management decisions.  Watch it above or on our YouTube Channel.

August 2011

July 2011

  • Pecan Scab Risk Assessment Aid to Disease Management--BROWSER ALERT
    Some pecan stakeholders using the Internet Explorer browser report difficulty loading this screen. Internet Explorer Version 9 is needed to obtain the best access to this tool (free updates are available at Microsoft); Firefox, Safari and other browsers function just fine with no changes needed based on our experience.

  • July is Leaf Nutrition Month
    It's that time of year again. July is the time to collect and submit leaf samples for analysis to determine the amount of essential minerals your pecan trees are absorbing from the soil or from foliar treatments. Nitrogen, potassium, zinc and other nutrient deficiencies can be identified from leaf samples. We have developed an information packet with instructions and locations for submitting leaf samples.
    View/print PDF Read/Download Instructions for Pecan Leaf Sample Collection for Nutritional Analysis

June 2011

  • Pecan Scab Risk Assessment Aid to Disease Management
    The new pecan scab risk assessment tool is now available. The tool provides a beltwide risk overview for the past 7 days, with links and instructions for customizing the assessment for your location. Please note that extensive help functions and background materials are provided. These will help you navigate through various features and get maximum value from this program deliverable. Reading them will reward you in learning how to use the system best for your purposes. Damon Smith, Pecan Plant Pathologist at Oklahoma State University, provided the leadership to make this tool available to the pecan industry. Please let us know what you think.
  • A new stinkbug Pest Alert has been issued. Read/download it.
  • New Herbicide Search Engine
    Weeds can present problems in pecan orchards because they compete with pecan trees for water, light, and nutrients. Therefore, weed control should be an important part of the overall pecan orchard management plan.

    To better serve our stakeholders, the Pecan ipmPIPE team has developed an herbicides search engine. The database behind the search engine was developed by Dr. Jamshid Ashigh, Extension Weed Specialist and Herbicide Specialist at New Mexico State University. The content of the database is based on Dr. Ashigh's publication, Integrated Weed Management in Pecan Orchards.View/download the publication in the Library, or go to the Herbicides Search Engine.

May 2011

Looking for an old news item? Try the News Archive

Pest Alerts

August 2011

  • Pecan Weevil Alert
    Pecan weevil management decision-making is upon us. Note that many pecan growing areas are facing drought conditions.  This may result in drought-delayed emergence well beyond the normal emergence time for this pest, particularly in orchards and groves with clay soils.
    Read more >>>

June 2011

  • Stinkbug ALERT
    A Regional Pest Alert has been issued for the brown marmorated stinkbug. Please see this publication for important information.
    Brown marmorated stinkbug. Adult female.

August 2010

  • Pecan Weevil Alert
    Pecan weevil management decision-making is already upon us. Note that many pecan growing areas are facing dry conditions, and this may result in drought-delayed emergence well beyond the normal emergence time for this pest, particularly in orchards and groves with clay soils.
    Read more >>>
  • Thousand Cankers Disease of Black Walnut
    This disease reported found in Tennessee July 26, 2010. (See companion materials listed below for details.)  Based on limited research, pecan is not known to be at risk from this disease. Scientists at Colorado State University will provide expert assistance if this disease is suspected present and local scientists should also be informed.
    • Thousand Cankers Disease, USDA Forest Service Pest Alert
    • Economic Loss Associated with the Introduction of Thousand Cankers Disease of Black Walnut to Kansas, Kansas Forest Service, Kansas State University
    • July 26 alert, Walnut twig beetle and Geosmithia sp. nov. found in Tennessee, Department of Bioagricultural Sciences and Pest Management, Colorado State University
    • Colorado State University website on Thousand Cankers Disease

Alerts Archive

Videos and E-Learning