Influence of supplementary in-bed chloropicrin application on soilborne pest control in tomato (Lycopersicon esculentum)

Four consecutive field trials were conducted in a four-season study to determine the long-term efficacy of supplementary in-bed applications of chloropicrin (Pic) in addition to 1,3-dichloropropene plus Pic (1,3-D+Pic) on soilborne pest control and tomato (Lycopersicon esculentum Mill.) yield. Treatments compared combinations of in-bed and broadcast 1,3-D and Pic with an untreated control and were repeated over several seasons. Results indicated that in-bed applications of C-35 and MBr+Pic consistently had the highest control of soilborne fungus (Fusarium oxysporum f.sp. lycopersici race 3), weeds (Cyperus spp.), and nematodes (Meloidogyne spp., Belonolaimus spp., and Tylenchorhynchus spp.) and tomato fruit weights, followed by the C-35+Pic, and 1,3-D+Pic, which had excellent performance in three of the four tomato seasons.