Effects of Repeat Annual Applications of Dichlobenil on Weed Populations and Yield Components of Cranberry

Sandler, Hilary A.; Mason, J. F.; Autio, Wesley R.; Bewick, Thomas

doi:10.1614/wt-03-125r1

Cited by 5 publications

(6 citation statements)

References 23 publications

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“…No negative yield effects were seen, but longer studies are needed to make appropriate assessments relating to yield. Four repeat, annual applications of dichlobenil made in mid-May for dodder management to EB and H cranberries did not show deleterious effects (Sandler et al 2004) and support the visual observations noted in this study relative for these two varieties. However, data are needed to appropriately gauge other cranberry-vine responses (e.g., number of healthy buds, upright density) to repeated late-May through June applications of dichlobenil for common varieties.…”

Section: Varietysupporting

confidence: 85%

“…Because dodder infestations depress cranberry yield (Bewick et al 1988;Devlin and Deubert 1980), sites expected to be devoid of dodder infestations in the treatment year were specifically chosen to permit evaluation of dichlobenil on yield without the confounding factor of dodder-induced yield loss. Dichlobenil was applied using a hand-held shaker (Sandler et al 2004) to 2-m 2 plots arranged in a randomized completeblock design with five replicates; alleyways of at least 0.25 m separated each plot. Treatments (growth stage by rate combinations, n ¼ 12; plus an untreated control) were made as single applications on a weekly schedule, starting in early May and continuing to mid to late June for each variety (Table 1).…”

Section: Methodsmentioning

confidence: 99%

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Response of Four Cranberry Varieties to Delayed Applications of Dichlobenil

Sandler

2013

Weed technol.

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Field studies were conducted in 2009 and 2010 on established commercial cranberry farms in southeastern Massachusetts to evaluate cranberry vine injury and yield with two rates of dichlobenil (1.8 and 2.7 kg ai ha−1) applied at various growth stages starting in mid-May. Four varieties were evaluated: ‘Ben Lear', ‘Early Black', ‘Howes', and ‘Stevens'. Ben Lear vines exhibited leaf-stress symptoms in both years, and Howes and Stevens vines had leaf symptoms in 1 yr. Data indicated that applications made during periods of flower-part development and growth (jewel through bloom) had the highest injury ratings. Growth stage affected injury ratings by variety and dichlobenil rate in 1 out of 2 yr. In all cases, leaf symptoms abated by the end of the season. No effect on yield (wt of fruit per unit area) was detected for any treatment combination on any variety in either year. Data from the present study support pursuit of future studies and can guide management decisions for dodder control to a limited extent. Longer studies are needed to fully evaluate repeated, annual applications of dichlobenil dispensed during periods of rapid growth on cranberry vine development and yield. Further work is also needed to document the practical use of delayed applications of dichlobenil for dodder management.

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Section: Varietysupporting

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Response of Four Cranberry Varieties to Delayed Applications of Dichlobenil

Sandler

2013

Weed technol.

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“…Our estimates of N and C pools in soil OM (0-15 cm beneath the soil surface) exceeded vegetative biomass pools, but the decrease in belowground biomass C from 2004 to 2005 may have been caused by an herbicide application of Casaron (Dichlobenil), which can reduce cranberry root growth (Sandler et al 2004). Overall, these data provide evidence that this perennial cropping system can be characterized by high levels of nutrient retention and potential recycling of both C and N from the OM.…”

Section: Nutrient Retention and Recycling Of N From Ommentioning

confidence: 72%

Looking beyond fertilizer: assessing the contribution of nitrogen from hydrologic inputs and organic matter to plant growth in the cranberry agroecosystem

Stackpoole

Kosola

Workmaster

et al. 2011

Nutr Cycl Agroecosyst

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Even though nitrogen (N) is a key nutrient for successful cranberry production, N cycling in cranberry agroecosystems is not completely understood. Prior research has focused mainly on timing and uptake of ammonium fertilizer, but the objective of our study was to evaluate the potential for additional N contributions from hydrologic inputs (flooding, irrigation, groundwater, and precipitation) and organic matter (OM). Plant biomass, soil, surface and groundwater samples were collected from five cranberry beds (cranberry production fields) on four different farms, representing both upland and lowland systems. Estimated average annual plant uptake (63.3 ± 22.5 kg N ha -1 year -1 ) exceeded total average annual fertilizer inputs (39.5 ± 11.6 kg N ha -1 year -1 ). Irrigation, precipitation, and floodwater N summed to an average 23 ± 0.7 kg N ha -1 year -1 , which was about 60% of fertilizer N. Leaf and stem litterfall added 5.2 ± 1.2 and 24.1 ± 3.0 kg N ha -1 year -1 respectively. The estimated net N mineralization rate from the buried bag technique was 5 ± 0.2 kg N ha -1 year -1 , which was nearly 15% of fertilizer N. Dissolved organic nitrogen represented a significant portion of the total N pool in both surface water and soil samples. Mixed-ion exchange resin core incubations indicated that 80% of total inorganic N from fertilizer, irrigation, precipitation, and mineralization was nitrate, and approximately 70% of recovered inorganic N from groundwater was nitrate. There was a weak but significant negative relationship between extractable soil ammonium concentrations and ericoid mycorrhizal colonization (ERM) rates (r = -0.22, P \ 0.045). Growers may benefit from balancing the N inputs from hydrologic sources and OM relative to fertilizer N in order to maximize the benefits of ERM fungi in actively mediating N cycling in cranberry agroecosystems.

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“…Anecdotal observations indicate that dichobenil applications do not substantially decrease dodder seed production unless the majority of seedlings are controlled. Repeated annual dichobenil applications do not impact yield of cranberry [54].…”

Section: Preemergence Optionsmentioning

confidence: 90%

Managing Cuscuta gronovii (Swamp Dodder) in Cranberry Requires an Integrated Approach

Sandler

2010

Sustainability

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Dodders (Cuscuta spp.) are parasitic plants that threaten the sustainability of many crops. Because this parasite is very adept and successful from biological and ecological perspectives, a single control strategy is unlikely to provide sufficient economic control. Dodder (C. gronovii) is a particularly serious pest in commercial cranberry (Vaccinium macrocarpon) production. Multiple viable strategies must be integrated and tailored into a weed management plan to provide acceptable control. The key to sustainable management of this serious pest will require a combination of chemical and cultural approaches, supported by understanding the complicated nature of dodder biology. Research from small fruit production systems like cranberry into the biology of dodder (e.g., germination patterns, host preference, use of plant growth regulators) may provide insights that could ultimately be useful for other crop system management plans. This paper will present the current knowledge base for integrated management of dodder in cranberry as well as highlight relevant research from other crops and potential topics for future research

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Effects of Repeat Annual Applications of Dichlobenil on Weed Populations and Yield Components of Cranberry

Cited by 5 publications

References 23 publications

Response of Four Cranberry Varieties to Delayed Applications of Dichlobenil

Response of Four Cranberry Varieties to Delayed Applications of Dichlobenil

Looking beyond fertilizer: assessing the contribution of nitrogen from hydrologic inputs and organic matter to plant growth in the cranberry agroecosystem

Managing Cuscuta gronovii (Swamp Dodder) in Cranberry Requires an Integrated Approach

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