Subsurface drip application of alternative fumigants to methyl bromide for controlling nematodes in replanted grapevines

Abstract

Subsurface drip fumigation with alternative chemicals to methyl bromide generally provided adequate management of plant-parasitic nematodes during the vine establishment period. However, further research is required to increase the performance of alternative chemicals against other components of the replant problem, as grape yield in vines grown in the alternative treatments was lower than in methyl bromide.

Pre-plant soil fumigation with reduced rates under low permeability films for nursery production, orchard and vineyard replanting

“…One of the most widely used pre-plant soil fumigants with acceptable control of nematodes, soilborne pathogens and weeds is the mixture of 1,3-dichloropropene (1,3-D) and chloropicrin (CP) (Cabrera et al, 2011(Cabrera et al, , 2012Schneider and Hanson, 2009). However, fumigants that contain 1,3-D and CP are restricted by township caps and buffer zone requirements in CA because of exposure risks and their emissions of volatile organic compounds (Carpenter et al, 2001).…”

Intraspecific variability of the facultative meiotic parthenogenetic root-knot nematode (Meloidogyne graminicola) from rice fields in Vietnam

“…However, the chemicals used for RKN control are toxic not only to humans, but also to the environment and have been or are being banned in most countries [17]. Consequently, RKN are an increasing pest problem, prompting the urgent need for alternative and durable management strategies [18].…”

Effects of CO2dissolution on phase distribution and degradation of dimethyl disulfide in soils under grape production

“…Until recently, replanting grapes in California received an MeBr critical use exemption (CUE), but new regulations now exclude grape production . While numerous potential MeBr replacements have been investigated for nematode control in grape replant situations, there exist uncertainties regarding their overall performance . With the exception of MeBr, 1,3‐dichloropropene (1,3‐D) has the highest nematicide activity of commercial fumigants.…”

“…2 While numerous potential MeBr replacements have been investigated for nematode control in grape replant situations, there exist uncertainties regarding their overall performance. 3,4 With the exception of MeBr, 1,3-dichloropropene (1,3-D) has the highest nematicide activity of commercial fumigants. However, it is highly regulated in California and not always available owing to township caps and buffer zone requirements.…”