Welcome to Pecan ipmPIPE
Tawny Crazy Ants on a Pecan Tree
Bill Ree reports two small pecan orchards in Brazoria County (south of Houston) that have tawny crazy ants. There are also a few backyard plantings in the same area similarly infested. Bill hopes producers will report additional infestations. If you cannot view the video, watch it on Pecan IPM PIPE's YouTube Channel. Video courtesy of Danny McDonald.
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.
- The Pecan, A History of America's Native Nut by acclaimed writer and historian James McWilliams explores the history of our most important commercial nut from its beginnings as a food source for native Americans to its present status as a valued global commodity. University of Texas Press, October 2013.
- Register online now for the 2014 Texas Pecan Short Course.
Dates: 8:00 am on Monday, January 27, 2014 through noon Friday, January 31
Location: Room 601, Rudder Tower, Texas A&M University, College Station, Texas
- Latest issue of Bill Ree's Texas Pecan Pest Newsletter is now available for viewing and/or downloading. This issue contains a new list of insecticides labeled for pecan. Go to the Library and search by Format > Newsletter, or just click the link in the previous sentence to grab the newsletter.
- Walnut caterpillar pest alert (click on Pest Alerts tab above)
- The Pecan Scab Risk Assessment tool has been restored.
- Issue 2 of Arkansas Fruit and Nut News is available a their website. This issue includes information and risk map for pecan nut casebearer.
The Pecan Scab Risk Assessment tool is currently dysfunctional. Our initial diagnosis indicates this is a data flow problem involving NOAA data, the pecan scab risk analysis model we have developed and how the massive databases being created are updated, archived and retrieved. The solution requires purchasing Information Technology expertise and an upgrade of hardware and software to bring the tool back online.
The grant funding this program ended a year ago and new funds and funding streams are being sought to maintain the website. We intend to get this management aid back online ASAP and regret this break in service. We note that even though this website was designed to operate with minimal maintenance needs, some resources will always need to be provided by someone to maintain this website.
- The March 2013 issue of Bill Ree's Texas Pecan Pest Newsletter is online.
The Pecan Nut Casebearer (PNC) Data Collection program used to generate the public PNC Risk Map
will operate again in 2013. New cooperators can join by visiting the PNC Cooperator Programs section
of the website, registering with the system (if they haven’t already done so), and clicking on the “Become a Cooperator” link on the menu bar. Educational materials for PNC are also available on the website.Â
- Dr. George McEachern, Professor of Horticulture at TAMU, has prepared a calendar to aid pecan producers in conducting pecan management activities throughout the year.
Looking for an old news item? Try the News Archive
Pecan Weevil Alert
Pecan weevil management decision-making is upon us. Note that many pecan growing areas are facing drought conditions.Â 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 >>>
Bill Ree reports walnut caterpillar activity on pecan. Pecan producers or those with urban pecan trees should be watching for this insect. The real damage will occur when the larvae reach the 5th (last) instar. This is the stage when the larvae is black with long white hairs (pictured). These insects can defoliate a tree in 3 - 4 days.
- colonies on branch terminals
- a mass of cast skins on the main trunk or scaffold limbs
- a lot of frass on sidewalks or driveways
- branch terminals with missing foliage but leaf rachis still in tactÂ
- For homeowners - Bt-based insecticides and products with spinosad (ex: Green Light Lawn and Garden with Spinosad)
- For commercial producers - Intrepid, Confirm, Belt, Delegate are preferred.
- For organic producers - Entrust, certified Bt insecticides, Azera and Neemix
- Walnut Sphinx
An outbreak of the walnut sphinx, Amorpha juglandis, was in early July, 2012 infesting and defoliating about 100 acres of primarily native orchards between Highway 36 and 1702, south of Gustine, Texas.
Read more and see photos >>>
- Walnut Caterpillar Alert
- May 15 -- Producers should be on the lookout for walnut caterpillars starting to lay eggs in the next generation in about 3 weeks and then expect one more generations to occur about 6 weeks after that. Walnut caterpillars have been found as 4th instar larvae and are occurring earlier than usual in Victoria (Victoria County) and Cuero (DeWitt County), Texas. Photo credit: Howard Arnett
- 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 >>>
- Stinkbug ALERT
A Regional Pest Alert has been issued for the brown marmorated stinkbug. Please see this publication for important information.
- 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
Videos and E-Learning
- Pecan Nut Maturation (VIDEO)
Pecan Extension Program Specialist Bill Ree discusses kernel development stages and their relation to the timing of pest management decisions.
- Pecan Nut Casebearer Management (VIDEO)
In this field video, Extension Program Specialist Bill Ree discusses biology, identification and damage as well as control of the pecan nut casebearer moths in orchards.
- Stink Bugs/Leaffooted Bugs - Scouting and Control
Watch Extension Specialist Bill Ree's presentation on managing stink and leaffooted bug populations through integrated pest management. This presentation was originally made to the Western Pecan Growers Association annual conference in March 2010. [No audio]
- Stink bug feeding on a developing pecan nut [VIDEO]