SURVEY OF NORTHERN ARKANSAS FESCUE PASTURES FOR PLANT PARASITIC NEMATODES
Applied Research
Brad Runsick
County Extension Agent - Agriculture
University of Arkansas System Division of Agriculture
Mountain Home
Abstract
\r\n In order to gain more insight into the effects of plant parasitic nematodes in northern Arkansas tall fescue (Festuca arudinaceae) pastures, a survey was conducted to first determine which species were present. To do so, extension agents from selected northern Arkansas counties were sent packets with instructions on proper sampling and submission of soil/nematode samples. Fifty-four samples, representing fescue fields from 5 counties, were received at the University of Arkansas Nematode Lab, and general assays were run. Nematode extraction was done through the use of the lab’s semi-automatic elutriator, centrifuge, decanting, and sugar solution suspension. The total number of each nematode species were counted for each sample. The results indicated the presence of dagger (Xiphinema sp.), lance (Hoplolaimus sp.), spiral (Helicotylenchus sp.), stubby root (Paratrichodorus sp.), stunt (Tylenchorhynchus sp.), root knot (Meloidogyne sp.), pin (Pratylenchus sp.), and Tylenchus sp. in varying quantities. Further research will focus on determining nematode reproduction rates and the effects of nematode parasitism on root weights of endophyte infected, novel endophyte, and endophyte free cultivars of tall fescue. This future research will add to the body of knowledge concerning stand persistence of endophyte infected, endophyte free, and novel endophyte tall fescue cultivars.
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Poster has NOT been presented at any previous NACAA AM/PIC
This poster is being submitted for judging. It will be displayed at the AM/PIC if not selected as a State winner. The abstract will be published in the proceedings.
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Authors: B.A. Runsick
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Runsick, B. County Extension Agent, University of Arkansas Division of Agriculture Cooperative Extension Service, Arkansas, 72576