The potential for chemical control of Pterotylenchus cecidogenus on Desmodium ovalifolium was studied. Pre-germination treatment of D. ovalifolium seed with 500 ppm carbofuran for 1-60 min or 500 ppm benomyl for 60 min reduced subsequent infection by P. cecidogenus for at least 3 and 2 wk, respectively. Thiabendazole and thiophanate were nematicidal when applied to infected seedlings 1 wk after inoculation. Thiabendazole increased growth of uninoculated plants.
