Effect of application timing and method on efficacy and phytotoxicity of 1,3-D, chloropicrin and metam-sodium combinations in squash plasticulture

Pest Management Science
Johan A J DesaegerAlex S Csinos

Abstract

Metam-sodium, 1,3-dichloropropene (1,3-D) and chloropicrin are widely used soil fumigants. Combined application of metam-sodium and 1,3-D + chloropicrin is intended to improve efficacy and broaden spectrum of control, but little is known about the effect on crop safety. This study aimed to evaluate the effects of application timing of fumigant combinations on soilborne pest and disease control (nematodes, soil fungi and weeds) and growth of squash. Two separate tests with chisel-injected and drip-applied fumigant combinations and plant-back times ranging from 1 to 4 weeks were conducted in Tifton, GA, USA, in spring and fall 2002. Fumigant combinations using 1,3-D, chloropicrin and metam-sodium were as effective as methyl bromide in controlling Meloidogyne incognita (Kofoid & White) Chitwood, Pythium irregulare Buis., Rhizoctonia solani Kühn and Cyperus esculentus L. Chisel-applied combinations were more effective in terms of root-knot nematode control than drip-applied combinations. Root-knot nematode reduced squash yields by up to 60%. Phytotoxicity problems and lower yields were observed during spring, especially following 1,3-D + chloropicrin and when plant-back periods were shorter. The main problem with fumigant alternati...Continue Reading

References

Apr 27, 2002·Pest Management Science·Alex S CsinosStan Childers
May 4, 2004·Pest Management Science·Chad M HutchinsonJ Ole Becker
May 13, 2004·Journal of Agricultural and Food Chemistry·Wei ZhengJung Ho Kim
Apr 9, 2005·Pest Management Science·Mingxin GuoWei Zheng

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Citations

Apr 15, 2010·Journal of Agromedicine·Terrell BarryMichael O'Malley
Jun 16, 2015·PloS One·Qiuxia WangAocheng Cao
Oct 28, 2016·Journal of Agricultural and Food Chemistry·Bin HuangAocheng Cao
Apr 20, 2010·Journal of Environmental Quality·Qiuxia WangAocheng Cao
Jan 21, 2015·Journal of Environmental Quality·Qiuxia WangAocheng Cao
Mar 7, 2020·Journal of Agricultural and Food Chemistry·Bin HuangAocheng Cao

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