Association Between Sugarbeet Root Yield and Sugarbeet Root Maggot (Diptera: Otitidae) Damage

Campbell, L. G.; Anderson, A. W.; Dregseth, Robert J.; Smith, L. J.

doi:10.1093/jee/91.2.522

Cited by 28 publications

(21 citation statements)

References 4 publications

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“…This investigation was conducted at Þve sites in commercial sugarbeet Þelds near St. Thomas, North Dakota, and Glyndon, Minnesota, during 1996, 1998. Soil textural classiÞcations at study locations were sandy loam and loam for St. Thomas and Glyndon, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, T. myopaeformis is capable of causing major stand reductions and, consequently, substantial yield losses. For example, Campbell et al (1998) observed 42% yield losses in untreated plots when compared with those receiving the most efÞcacious insecticide treatment. Additionally, Blickenstaff et al (1981) reported yield losses ranging up to 100% because of root maggot injury in heavily infested areas.…”

mentioning

confidence: 99%

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Oat Cover Cropping and Soil Insecticides in an Integrated Sugarbeet Root Maggot (Diptera: Otitidae) Management Program

Dregseth

Boetel

Schroeder

et al. 2003

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Sugarbeet, Beta vulgaris L., producers occasionally establish cereal cover crops to minimize early-season soil erosion, wind abrasion, and mechanical injury of seedlings. We evaluated the use of living oat, Avena sativa L., cover cropping as a cultural tactic to minimize feeding injury from sugarbeet root maggot, Tetanops myopaeformis (Röder), larvae at five field sites during 1996, 1998, and 1999. Sweep-net sampling yielded 4.8-, 11.2-, and 7.2-fold more flies from oat cover-cropped chlorpyrifos, terbufos, and untreated control plots, respectively, than in noncover counterparts. However, larval feeding injury in terbufos-treated plots was reduced when cover-cropped (383 seeds/m2) at St. Thomas in all years. A reduced oat seeding rate (224 seeds/m2) also enhanced root protection in terbufos-treated plots at St. Thomas in 1999. Less root injury was sustained in cover-cropped chlorpyrifos plots than in noncover counterparts at St. Thomas in 2 study yr. Oat cover cropping also frequently resulted in reduced T. myopaeformis feeding injury in the absence of a soil insecticide. Although trends toward increased yields were often evident, significant yield benefits were limited to a 6.8% root yield increase in oat cover plots when compared with noncover treatments overall at St. Thomas in 1996 and an 18.4% sucrose yield increase in terbufos-treated plots at St. Thomas in 1999. These findings suggest that beneficial interactions between planting-time soil insecticides and cereal cover crops are achievable in areas infested by T. myopaeformis. Demonstrated reductions in root feeding injury, combined with additional agronomic benefits, may warrant use of this production practice as part of an integrated management program for this key insect pest of sugarbeet.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

Oat Cover Cropping and Soil Insecticides in an Integrated Sugarbeet Root Maggot (Diptera: Otitidae) Management Program

Dregseth

Boetel

Schroeder

et al. 2003

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“…Diptera-Amaranthus blitoides is a host of Tetanops myopaeformis Roder, one of the most important insect pests of sugarbeets in North America (Blickenstaff et al 1977 Campbell et al 1998), and of Asphondylia amaranthi Felt. (Barnes 1948).…”

Section: Response Tomentioning

confidence: 99%

The biology of Canadian weeds. 126. Amaranthus albus L., A. blitoides S. Watson and A. blitum L.

Tardif¹

2003

Can. J. Plant Sci.

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A review of biological information is provided for three species of the genus Amaranthus: A. albus L., A. blitoides S. Watson and A. blitum L. The last species has been revised taxonomically and a new subspecies for Canada is presented-A. blitum subsp. emarginatus (Moq. ex Uline & Bray) Carretero, Munoz Garmendia & Pedrol. Amaranthus albus and A. blitoides are native to the U.S.A. and introduced to Canada. Both species are annual ruderal and agrestal weeds. During the past 100 yr the two species have spread across most provinces of Canada, but the greatest frequency and abundance have been recorded in Saskatchewan. Originating from Europe, Asia and North Africa, A. blitum was initially considered a non-persistent species. The present study shows that A. blitum especially, subsp. emarginatus, has continued to spread in Québec. The three species are alternate hosts to many insects, nematodes, viruses, bacteria and fungi that affect cultivated plants. In other areas (U.S.A., Europe and Asia), the three species have developed multiple resistance to triazine and acetolactate-synthase-inhibiting herbicides. Key words: Amaranthus albus, Amaranthus blitoides, Amaranthus blitum, weed biology, ecology, taxonomy, herbicide resistance

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“…Severe feeding injury can result in seedling death if the tap root becomes severed, especially under extremely dry soil conditions. Sugarbeet yield losses resulting from T. myopaeformis feeding injury can exceed 40% in the absence of adequate control measures (Campbell, Anderson, Dregseth, and Smith 1998;Boetel, Dregseth, and Schroeder 2010). Dryland (i.e.…”

Section: Introductionmentioning

confidence: 99%

Cover crop and conidia delivery system impacts on soil persistence ofMetarhizium anisopliae(Hypocreales: Clavicipitaceae) in sugarbeet

Boetel

Majumdar

Jaronski

et al. 2012

Biocontrol Science and Technology

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The sugarbeet root maggot, Tetanops myopaeformis (Rôder), is a major North American pest of sugarbeet. Beta vulgaris L. Previous research suggests that moderate T. myopaeformis control is possible with the entomopathogen Metarhizium anisopliae (Metch.) Sorok. We conducted a three-year (2002)(2003)(2004) experiment to assess impacts of" oat. Avena sativa L. and rye. Sécale céréale L., cover crops on persistence of corn grit-based granular or spray formulations of M anisopliae isolate ATCC 62176 (i.e. MA 1200) applied at 8 x lO'^ viable conidia/ha in sugarbeet. More colony forming units (CFUs) were detected immediately after application [0 days after treatment (DAT)] in spray plots than granule-treated plots. However, 76-92% declines in CFUs per gram of soil occurred in spray plots within 30 DAT. Substantially (i.e. 83-560%) more rainfall occurred in June 2002 than during June of any other year. Subsequently, 71-670% increases in CFU concentrations occurred by 60 DAT in M anisopliae granuletreated plots with oat or rye cover crops that year. CFU density increases were higher in cover crops in 2002, but no significant cover crop effects were detected. Conidia persisted for up to 30 DAT in M anisopliae spray plots and 60 DAT in granule-treated plots in 2002; however, no increases occurred in the years with less June rainfall. Trends suggest that M. anisopliae aqueous sprays result in greater conidia concentrations than granules at sugarbeet plant bases in June during T myopaeformis oviposition and larval establishment on host plants. Increases are possible when delivering conidia via granules, but high post-application rainfall could be necessary for conidia production.

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Association Between Sugarbeet Root Yield and Sugarbeet Root Maggot (Diptera: Otitidae) Damage

Cited by 28 publications

References 4 publications

Oat Cover Cropping and Soil Insecticides in an Integrated Sugarbeet Root Maggot (Diptera: Otitidae) Management Program

Oat Cover Cropping and Soil Insecticides in an Integrated Sugarbeet Root Maggot (Diptera: Otitidae) Management Program

The biology of Canadian weeds. 126. Amaranthus albus L., A. blitoides S. Watson and A. blitum L.

Cover crop and conidia delivery system impacts on soil persistence ofMetarhizium anisopliae(Hypocreales: Clavicipitaceae) in sugarbeet

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