Impact of ethanedinitrile rates and application method on nutsedge species and tomato root galling

Evaluation of ethanedinitrile (EDN) as a preplant soil fumigant in Florida strawberry production

“…The highest rate of EDN at 560 kg ha −1 consistently displayed equivalent control of C. rotundus compared with 1,3-D + Pic in all three trials. In previous research, Stevens et al 31 reported a similar observation in a field trial conducted in Balm, Florida and found that the non-fumigated control had a lower C. rotundus population in the late season. As a result, the high rate of EDN at 560 or 672 kg ha −1 did not effectively reduce the Cyperus spp.…”

“…However, in other crops, EDN shank applied at 672 kg ha −1 reduced tomato height and vigor compared with the low rate of 336 kg ha −1 and the non-fumigated control. However, reduced tomato height and vigor were observed only in the early season and were not thought to be due to phytotoxicity 31 considering the highly volatile nature and short soil persistence of EDN. 32,33 Strawberry yields in the non-fumigated control were comparable with the soil fumigated with 1,3-D + Pic or EDN.…”

“…Although strawberry plants were previously inoculated in the greenhouse, the amount of inoculum in the crowns cannot be quantified prior to burying the crowns in the soil because it requires destructive sampling. Nevertheless, the overall performance of EDN against M. phaseolina in strawberry is encouraging because besides charcoal rot, it can also control weeds, 28,30,31 plant-parasitic nematodes, 28,30,45 and various other soil-borne pathogens. 28 In summary, EDN has potential to be an efficacious tool for managing weeds and M. phaseolina in plasticulture strawberry.…”

“…Ethanedinitrile (C 2 N 2 ; EDN) was initially studied for its efficacy to control insects, fungi, nematodes and rodents in stored grains and timber and wood packaging materials . Preliminary research revealed that EDN used as a soil fumigant exhibited efficacy against soil‐borne fungi, plant‐parasitic nematodes and weeds . Compared with MB (boiling point 3.5 °C; vapor pressure 1.42 × 10 3 mmHg at 20 °C), EDN (boiling point −21 °C; vapor pressure 3.9 × 10 3 mmHg at 21 °C) has a lower boiling point but higher vapor pressure .…”

“…27 Preliminary research revealed that EDN used as a soil fumigant exhibited efficacy against soil-borne fungi, 28 plant-parasitic nematodes 28 and weeds. [29][30][31] Compared with MB (boiling point 3.5 ∘ C; vapor pressure 1.42 × 10 3 mmHg at 20 ∘ C), EDN (boiling point −21 ∘ C; vapor pressure 3.9 × 10 3 mmHg at 21 ∘ C) has a lower boiling point but higher vapor pressure. 32 As a result, EDN should diffuse through the soil profile faster and further than MB.…”