Modeling the Spread of Western Corn Rootworm (Coleoptera: Chrysomelidae) Populations Adapting to Soybean-Corn Rotation

Onstad, David W.; Joselyn, M. G.; Isard, Scott A.; Levine, Eli; Spencer, Joseph L.; Bledsoe, L. W.; Edwards, C. R.; Fonzo, Carla Di; Willson, H. R.

doi:10.1093/ee/28.2.188

Cited by 88 publications

(108 citation statements)

References 12 publications

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“…WCR damage in first-year corn occurs when female WCR adults oviposit in a non-corn crop the previous summer because prolonged diapause does not occur at an appreciable level (Levine et al 1992). Since the initial reports of first-year corn damage, crop rotation failure has been reported throughout a large portion of Illinois and Indiana (Onstad et al 1999). These areas follow an extensive corn and soybean rotation with little use of additional crops such as winter wheat, Triticum aestivum L., in cropping systems.…”

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Oviposition site selected by the western corn rootworm (Diabrotica virgifera virgifera Leconte) in southern Ontario strip plots

Knight¹,

Pauls²,

Sears³

et al. 2005

Can. J. Plant Sci.

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Western corn rootworm (WCR), Diabrotica virgifera virgifera L., is the most serious insect pest of corn, Zea mays L., in North America. Crop rotation had successfully controlled this pest until the late 1980s when a new biotype that lays its eggs in non-corn crops was discovered in Illinois. This biotype has spread to parts of Indiana, Michigan, and Ohio, and threatens Ontario. By using emergence cages, Pherocon Am® sticky traps and corn root ratings, egg-laying behaviour of WCR in Ontario was assessed in strip crop settings that represent typical cropping systems of southern Ontario. WCR adults were active in both soybean and winter wheat fields in July and August. Larval feeding and adult emergence in first-year corn fields following soybean and wheat were similar, confirming that oviposition did occur in both crops. These data do not, however, provide conclusive evidence for the presence of the rotation resistant WCR in Ontario because previous studies have demonstrated that WCR are capable of utilizing other crops for oviposition. Key words: Western corn rootworm, Diabrotica virgifera virgifera, strip plots, corn, soybean, wheat (winter)

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“…The new WCR biotype, which is capable of laying eggs in non-corn hosts, has moved in a predominantly northeasterly direction from its east-central Illinois origin (Onstad et al 1999). As a result, it is possible that this new biotype may arrive in Ontario.…”

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confidence: 99%

Oviposition site selected by the western corn rootworm (Diabrotica virgifera virgifera Leconte) in southern Ontario strip plots

Knight¹,

Pauls²,

Sears³

et al. 2005

Can. J. Plant Sci.

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“…We found that soybeans with resistance to A. glycines based on genes Rag1 and rag1/ rag3 did not affect survival, fecundity, or leaf consumption of D. v. virgifera, indicating that these soybean traits likely will not impose selection for or against rotation-resistance in D. v. virgifera. Onstad et al (1999) used computer models to predict the spread of the rotation-resistant variant and suggested that their range could expand by as much as 10 Ð30 km per year, depending on prevailing wind and storm direction. Resistance has not spread as quickly as originally predicted (Onstad et al 2003).…”

Section: Discussionmentioning

confidence: 99%

“…Eggs of D. v. virgifera recovered from soybean Þelds (Levine and Oloumi-Sadeghi 1996) conÞrmed that soybean Þelds were suitable oviposition sites for D. v. virgifera. Rotation resistance since has spread outward from the epicenter in east-central Illinois and simulation models using wind and storm patterns have been used to predict the future distribution of rotation resistance (Onstad et al 1999(Onstad et al , 2003.…”

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Effect of Soybean Varieties on Survival and Fecundity of Western Corn Rootworm

Dunbar¹,

Gassmann²

2012

jnl. econ. entom.

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The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a major pest of corn (Zea mays L.) in North America and has evolved resistance to crop rotation by ovipositing in alternate crops such as soybeans [Glycine max (L.) Merr.]. Through experiments with plants grown in the greenhouse and the field, we tested whether soybeans with resistance to the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), affected survival, fecundity, and consumption of soybean for D. v. virgifera. Soybean varieties tested included those types resistant to A. glycines (Rag1 and rag1/rag3) and a susceptible near isoline of the Rag1 variety. Females were provided with a diet of corn tissue for 4 d after which they were fed a diet of tissue from one of three soybean varieties for 4 d, starved for 4 d, or fed corn tissue. When fed greenhouse grown plants, strains differed significantly in survival and consumption, but consumption did not differ by variety of soybean. Diet treatment only affected fecundity; individuals fed corn continuously had greater fecundity than those individuals fed soybeans. In the experiment with plants grown in the field, leaf consumption differed among strains and individuals fed corn continuously had greater fecundity than the other treatments. Soybean varieties with Rag1 and rag1/rag3 resistance toA. glycines did not appear to affect the fitness of D. v. virgifera. Thus, planting of these A. glycines-resistant soybean varieties should not directly affect the spread of rotation-resistant D. v. virgifera. KeywordsAphis glycines, Diabrotica virgifera virgifera, host plant resistance, Rag genes, rotation resistance RightsThis article is the copyright property of the Entomological Society of America and may not be used for any commercial or other private purpose without specific written permission of the Entomological Society of America.This article is available at Iowa State University Digital Repository: http://lib.dr.iastate.edu/ent_pubs/184BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Effect of Soybean Varieties on Survival and Fecundity of Western Corn RootwormAuthor (s)

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“…Principal corn rootworm management options are crop rotation and insecticides that are often applied to soil at planting. Alternate control strategies are needed to reduce environmental impacts associated with pesticide use and to compensate for increasing corn rootworm adaptation to both management options Levine & Oloumi-Sadeghi, 1996;Meinke et al, 1998;Onstad et al, 1999). Maize modified genetically to express proteins of Bacillus thuringiensis (Bt) that are toxic to corn rootworm larvae may soon provide an effective alternative, although not one that is universally acceptable or immune to resistance development if used even regionally to the exclusion of other control measures (Hunter, 2000).…”

Section: Introductionmentioning

confidence: 99%

Volatile semiochemical impact on trapping and distribution in maize of northern and western corn rootworm beetles (Coleoptera: Chrysomelidae)

Hammack¹

2003

Agri and Forest Entomology

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1 Field studies evaluated plant attractants and analogues as tools to move corn rootworm beetles (Diabrotica spp.) into areas to be treated with toxic baits for population suppression via mass removal/annihilation of reproductive adults. 2 When dispensed from sticky traps in maize, 2-phenyl-1-ethylamine and 2-phenyl-1-ethanol captured more northern corn rootworm, Diabrotica barberi, than did 4-methoxyphenethanol. Only 2-phenyl-1-ethanol attracted the western corn rootworm, Diabrotica virgifera virgifera, but not until maize matured beyond milk stage. 3 Attraction of D. barberi to the amine, alone or blended with 2-phenyl-1-ethanol, occurred before and after maize flowered but not during intervening silk or blister stages. Attraction recurred during early milk stage at or before 50% emergence of adult female D. barberi or D. v. virgifera, respectively, and before populations declined for the season. 4 Synergistic interaction of 2-phenyl-1-ethylamine with 2-phenyl-1-ethanol in attracting D. barberi females did not occur until maize matured to late milk stage. 5 The amine-alcohol blend (0.44 point sources m À2 ) doubled the density of D. barberi but not D. v. virgifera when applied to small plots within mostly milk-stage or younger maize. Traps without bait within attractant-treated plots captured more female, but not male, D. barberi than did traps in untreated control plots, hinting that females accounted for most of the observed increase in beetle density. 6 The results suggest that attractants can be used despite phenological limitations to concentrate preovipositional females within field areas and thus to complement a variety of corn rootworm control strategies.

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Modeling the Spread of Western Corn Rootworm (Coleoptera: Chrysomelidae) Populations Adapting to Soybean-Corn Rotation

Cited by 88 publications

References 12 publications

Oviposition site selected by the western corn rootworm (Diabrotica virgifera virgifera Leconte) in southern Ontario strip plots

Oviposition site selected by the western corn rootworm (Diabrotica virgifera virgifera Leconte) in southern Ontario strip plots

Effect of Soybean Varieties on Survival and Fecundity of Western Corn Rootworm

Volatile semiochemical impact on trapping and distribution in maize of northern and western corn rootworm beetles (Coleoptera: Chrysomelidae)

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