Lenny Wells
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In order to address the market situation created by the importation of foreign pecans into the U.S. market, the U.S. Department of Agriculture (USDA) received a proposal from the National Pecan Federation (NPF) requesting the establishment of a research and promotion program to strengthen the position of pecans in the marketplace, maintain and expand markets…
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Jason Brock and Dr. Tim Brenneman UGA Department of Plant Pathology Triazole (Group 3) fungicides were first labeled and used in pecan production during the 1990s with the introduction of propiconazole (Orbit). Since that time, a number of triazole active ingredients and products have been available and widely used. Tebuconazole in particular has been sprayed…
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Our extension plant pathologist Jason Brock offers the following recommendations based on Dr. Tim Brenneman’s research regarding nut scab: June through July is a critical time for pecan scab management, as nuts are most susceptible during sizing. Nut scab development early in the summer will be much more devastating than late season infections. We have…
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Getting a lot of calls over the last week about leaf scorching and some die-back on young trees. This is something we see every year beginning in late May/early June and is related to the inability of the relatively small root system on young trees trying to support such vigorous and rapid growth of the…
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I’ve had a few calls this week on Desirable leaf drop. While mowing orchards all week, I noticed some of this myself. Upon closer examination, where I was seeing it from the tractor it seemed to be only on trees which had stopped up microsprinklers. What appears to be going on here is that pecan…
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I’ve had a few calls this week from growers concerned about thin foliage, mostly in the upper canopy of trees. Pecan trees leaf out from the bottom up. Thus the foliage in the lower canopy this time of year is usually much better developed, thicker, and can be a little darker in color. The warm…
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Based on conversations I have had with a number of growers it sounds as if there is a need for some clarification regarding phosphite materials. Phosphite has become a very valuable tool for us in the battle against pecan scab. Dr. Tim Brenneman first began testing phosphite materials on pecan primarily for efficacy on some…
Posted in: Disease