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Tomato tolerance and pest control following fumigation with different ratios of dimethyl disulfide and chloropicrin
Author(s) -
Yu Jialin,
Land Caroline J,
Vallad Gary E,
Boyd Nathan S
Publication year - 2019
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.5262
Subject(s) - chloropicrin , fumigation , dimethyl disulfide , cyperus rotundus , fusarium oxysporum , agronomy , weed control , biology , weed , fusarium wilt , pesticide , horticulture , chemistry , organic chemistry , sulfur
Background The phaseout of methyl bromide (MeBr) continues to stimulate research into the use of other soil fumigants for controlling soil‐borne diseases and weeds. This research evaluated tomato ( Solanum lycopersicum L.) tolerance, weed emergence and the recovery of Fusarium oxysporum f.sp. lycopersici (FOL) inoculum following fumigation with various combination ratios of dimethyl disulfide plus chloropicrin (DMDS + Pic). Results On its own, DMDS did not effectively control purple nutsedge ( Cyperus rotundus L.) compared with DMDS + Pic. Control of C. rotundus and fusarium wilt increased with Pic based on weed emergence throughout the growing season and FOL inoculum recovery from soil. In all three growing seasons, 159 kg ha −1 DMDS + 379 kg ha −1 Pic provided season‐long control of C. rotundus . Conclusion This research confirms that formulating DMDS + Pic containing a high percentage of Pic offers an effective alternative to MeBr for tomato production. © 2018 Society of Chemical Industry