News/Alerts Archive
August 2010
Thousand Cankers Disease of Black Walnut 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
July 2010
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Leaf Nutrition Month
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.
Instructions for Pecan Leaf Sample Collection for Nutritional Analysis
June 2010
- Walnut Caterpillar Alert
We are observing walnut caterpillar late instar larvae on pecan in Victoria and Cuero, Texas. Hatch of the next generation at those locations is anticipated to occur about June 25th.
The last couple of years, infestations were observed in Cuero along the Guadalupe River, but so far these have not expanded into an epidemic that defoliates wide expanses of pecans and hickories. Past experience shows walnut caterpillar is capable of widespread defoliation over entire river systems and vigilance is needed to detect them and treat them, if needed, before defoliation occurs.
April 2010
- The Pecan IPM Library is now available!
The Pecan IPM Library offers a wide range of research-based information that can help our constituents make informed decisions about integrated pest management in their pecan operations. Formats include Extension publications, journal articles, newsletters, slide and video presentations and proceedings articles.
January 2010
- Pecan IPM Pesticide Database is available.
- Search the National Agriculture Library's Thesaurus and Glossary from our site. Go to the top navigation bar (the blue strip above, under the picture) and click on "Search the NAL Thesaurus and Glossary." The Thesaurus and Glossary are online vocabulary tools of agricultural terms in English and Spanish.
August 2009
July 2009
-
Leaf Nutrition Month
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.
Instructions for Pecan Leaf Sample Collection for Nutritional Analysis