Yield Response of Corn Subjected to Western Corn Root worm (Coleoptera: Chrysomelidae) Infestation and Lodging

Spike, B. P.; Tollefson, J. J.

doi:10.1093/jee/84.5.1585

Cited by 114 publications

(84 citation statements)

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“…The larval stage can cause economic damage by feeding on corn roots which results in decreased plant growth and reduced yield (Chiang 1973, Apple et al 1977, Levine and Oloumi-Sadeghi 1991, Spike and Tollefson 1991, Godfrey et al 1993, Urias 1998. Yield losses and control expenses attributed to corn rootworms annually cost producers millions of dollars.…”

mentioning

confidence: 99%

Influence of Corn Phenology on Adult Western Corn Rootworm (Coleoptera: Chrysomelidae) Distribution

2000

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confidence: 99%

Influence of Corn Phenology on Adult Western Corn Rootworm (Coleoptera: Chrysomelidae) Distribution

2000

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“…Larval feeding injury to roots reduces uptake of nutrients and water, which can reduce yield. Additionally, larval feeding can cause corn plants to lodge (Spike and Tollefson 1991), which can complicate mechanical harvest (Riedell 1990).…”

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Abundance and Distribution of Western and Northern Corn Rootworm (<I>Diabrotica</I> spp.) and Prevalence of Rotation Resistance in Eastern Iowa

Dunbar

Gassmann

2013

jnl. econ. entom.

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The western corn rootworm Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae) and the northern corn rootworm Diabrotica barberi Smith & Lawrence (Coleoptera: Chrysomelidae) are major pests of corn (Zea mays L.). Historically, crop rotation has been an effective management strategy, but both species have adapted to crop rotation in the Midwest. For both species in eastern Iowa, we measured abundance and prevalence of rotation resistance using sticky traps and emergence cages in fields of corn and soybean (Glycine max L.). Based on currently available data, we calculated the economic thresholds for these pests at two Diabrotica spp. per trap per day in cornfields and 1.5 D. v. virgifera per trap per day in soybean fields. The economic injury level of rotation-resistant D. barberi was determined to be 3.5 adult insects per emergence cage per year. Peak abundance of rootworm adults in cornfields was below economic thresholds in the majority of fields sampled, suggesting that management of rootworm larvae in continuous cornfields may not always be necessary. Rotation-resistant D. barberi was found throughout eastern Iowa using emergence cages in first-year cornfields, however, the abundance was below levels expected to impose economic injury in 14 of 17 fields evaluated. The presence of rotation-resistant D. v. virgifera, as measured by the occurrence of this insect in soybean fields, occurred only in northeastern Iowa and was also below the economic threshold. These data suggests that crop rotation remains a viable pest management strategy in eastern Iowa.

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“…Larvae hatch in spring and feed on corn roots, but roots of other grass species also can sustain development (Oyediran et al 2004). Feeding on corn roots by larval D. v. virgifera inhibits uptake of water and nutrients, causes plant lodging (which complicates mechanical harvesting), and imposes yield loss (Riedell 1990, Spike andTollefson 1991). Larvae pupate in the soil and adults can begin emerging in July (Levine and Oloumi-Sadeghi 1991).…”

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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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Yield Response of Corn Subjected to Western Corn Root worm (Coleoptera: Chrysomelidae) Infestation and Lodging

Cited by 114 publications

References 0 publications

Influence of Corn Phenology on Adult Western Corn Rootworm (Coleoptera: Chrysomelidae) Distribution

Influence of Corn Phenology on Adult Western Corn Rootworm (Coleoptera: Chrysomelidae) Distribution

Abundance and Distribution of Western and Northern Corn Rootworm (<I>Diabrotica</I> spp.) and Prevalence of Rotation Resistance in Eastern Iowa

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

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