Weather Uncertainty and Efficacy of Fumigation in Tomato Production

Wu, Feng; Qushim, Berdikul; Guan, Zhengfei; Boyd, Nathan S.; Vallad, Gary E.; Macrae, Andrew; Jacoby, Tyler P.

doi:10.3390/su12010199

Cited by 9 publications

(8 citation statements)

References 21 publications

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“…As foreign competition and domestic challenges such as labor shortages (Bampasidou and Salassi, 2019;Beal Cohen et al, 2020;Guan et al, 2015;Roka and Guan, 2018) and the phase-out of methyl bromide (Cao et al, 2019;Wu et al, 2020) increasingly erode the profitability of US growers, solutions must be found to make the industry viable and competitive. This applies not only to the fresh tomato industry but also to other major fresh produce commodities such as peppers (Biswas et al, 2018) and berries (Suh et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

How trade affects the US produce industry: the case of fresh tomatoes

Guan

et al. 2022

IFAM

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The US produce industry faces intensifying competition from imports, particularly those from Mexico, the largest exporter of produce to the United States. Fresh produce imports from Mexico have grown dramatically in recent years. This study examines the impact of increasing fresh tomato imports from Mexico on market price and revenue of US growers. Results show that tomato prices are highly sensitive to supply, suggesting a saturated market. Imports from Mexico have significant negative impacts on the prices of US domestic tomatoes. A scenario of 50% increase in tomato imports from Mexico could result in a $252 million (27%) revenue loss for American growers, thus posing great challenges to the sustainability of the declining US tomato industry.

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Section: Discussionmentioning

confidence: 99%

How trade affects the US produce industry: the case of fresh tomatoes

Guan

et al. 2022

IFAM

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“…Weather conditions affect fumigant efficacy. Wu et al 59 used empirical models to study the effect of weather conditions on fumigants for weed control and found that high soil temperature reduced the efficacy of a number of soil fumigants, including 1,3-D + Pic, 1,3-D + Pic + metam potassium, methyl bromide + Pic, and DMDS + Pic, against purple nutsedge. In the present study, the variability in fumigant efficacy between years was greater for 1,3-D + Pic, while less evident for DMDS + metam potassium.…”

Section: Discussionmentioning

confidence: 99%

Sorghum cover crop and repeated soil fumigation for purple nutsedge management in tomato production

Sharpe

Boyd

2021

Pest Management Science

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BACKGROUND Purple nutsedge (Cyperus rotundus L.) is one of the most common and troublesome weeds. Field research trials were conducted in Florida to evaluate the effects of repeated fumigation and a sorghum sudangrass [Sorghum bicolor S. bicolor var. sudanense (Piper) Stapf.] cover crop on purple nutsedge (Cyperus rotundus L.) populations over time in tomato (Solanum lycopersicum L.) production. RESULTS Among the soil fumigants, DMDS + metam potassium was consistently the most effective treatment in terms of in‐crop purple nutsedge control. Plots with a sorghum cover crop during the fallow period exhibited higher purple nutsedge density during the tomato growing season as well as higher purple nutsedge shoot and tuber densities during the fallow period compared to the chemical fallow. CONCLUSION DMDS + metam potassium was the most effective fumigant for purple nutsedge control. Unexpectedly, a sorghum cover crop during the fallow period was less effective than chemical fallow for purple nutsedge management, and therefore we do not recommend the use of sorghum cover crops for weed management in fields where purple nutsedge is the major weed species.

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“…Our survey verified the widespread adoption of fumigants as a critical component of integrated weed management (IWM) programs for intensive strawberry production systems in Florida. However, fumigant efficacy on weeds is often variable (Khatri et al 2021a;Wu et al 2020), though there is strong evidence that fumigants kill weed seeds (Khatri et al 2021b;Klose et al 2008). Field trials are needed to evaluate the long-term impacts of fumigants on weed population dynamics.…”

Section: General Productionmentioning

confidence: 99%

Survey of weed flora and weed management practices in Florida strawberry fields

Boyd

Reuss

2022

Weed Sci

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A survey of weed flora and basic weed management practices was conducted in commercial strawberry [Fragaria × ananassa (Weston) Duchesne ex Rozier ssp. ananassa] fields in central Florida during the 2019 to 2020 field season. Forty-one fields on 14 farms were surveyed, which represents a total of 907 ha or 23% of the acreage planted to strawberries in Florida. All conventional fields were fumigated, and combinations of chloropicrin and 1,3-dichloropropene were used on 72% of the fumigated acreage. Preemergence or postemergence herbicides were used in row middles on 100% of the conventional acreage, but preemergence herbicides applied under the plastic mulch were only used on 12% of the acreage. A total of 47 weed species were identified during the survey. The five weed species with the highest frequency were goosegrass [Eleusine indica (L.) Gaertn.], cutleaf evening primrose (Oenothera laciniata Hill), Carolina geranium (Geranium carolinianum L.), common ragweed (Ambrosia artemisiifolia L.), and eclipta [Eclipta prostrata (L.) L.] which occurred in 83%, 63%, 58%, 58%, and 46% of all fields surveyed, respectively. The five species with the highest overall relative abundance were E. indica, O. lanciniata, G. carolinium, A. artemisiifolia, and Brazil pusley (Richardia brasiliensis Gomes). The frequency and distribution of E. indica is of particular concern, because populations in strawberry fields are thought to be resistant to paraquat, which is the primary herbicide used for crop termination. Weed density tended to be low overall, which suggests the integrated weed management (IWM) programs adopted by most growers are effective. Mean weed density tended to be similar on conventional and organic fields and unaffected by fumigant applied the year of the survey or the number of years strawberries had been grown consecutively in a field. Weed management research moving forward should focus on the development of IWM programs for E. indica, O. lanciniata, G. carolinium, and A. artemisiifolia.

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Weather Uncertainty and Efficacy of Fumigation in Tomato Production

Cited by 9 publications

References 21 publications

How trade affects the US produce industry: the case of fresh tomatoes

How trade affects the US produce industry: the case of fresh tomatoes

Sorghum cover crop and repeated soil fumigation for purple nutsedge management in tomato production

Survey of weed flora and weed management practices in Florida strawberry fields

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