Aggregation Sites for Adult European Corn Borers (Lepidoptera: Crambidae): A Comparison of Prairie and Non-Native Vegetation

Pleasants, John M.; Bitzer, Royce J.

doi:10.1093/ee/28.4.608

Cited by 13 publications

(13 citation statements)

References 10 publications

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“…The proper structure (Pleasants and Bitzer 1999) and microclimateÑ cool temperatures and very high humidity (DeRozari et al 1977) needed for matingÑ usually were not present. During midsummer in Iowa, these necessary attributes are furnished by giant foxtail (Showers et al 1976) and to a lesser extent green foxtail and soybeans.…”

Section: Discussionmentioning

confidence: 99%

Aggregation and Dispersal Behavior of Marked and Released European Corn Borer (Lepidoptera: Crambidae) Adults

et al. 2001

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To observe the aggregation and dispersal behavior of adult European corn borer, Ostrinia nubilalis (Hub ner), males in search of mates, two populations were marked, each with a different dye. One population was continuously reared in the laboratory (.5 yr) and the other was collected annually from the Þeld. From 1986 to 1988, marked adults were released in two release sets per year, with three to Þve releases per release set, coinciding with the spring and summer ßights of European corn borer in central Iowa. Traps for recapture contained lures baited with 40 mg of synthetic 97:3 Z:E-11-tetradecenyl acetate. Traplines extended from 200 m to 48 km. Each trap was assigned a compass direction. Males from the laboratory-reared population dispersed similarly to males just 1 generation from the wild. European corn borer males and females dispersed 23Ð49 km and some were recovered 14 km from the release site within 100 min after release. Sampling of aggregation sites demonstrated that on the nights of release, many adults aggregated in adjacent dense vegetation and did not disperse until the following night. Upon dispersal, these adults seemingly moved many meters or kilometers before settling again. Recapture of marked adults at 200 m might have been inßuenced by open landscapes (short, vegetative-growth corn). Recapture at 800 m or beyond, however, was unaffected by open landscapes, and in 1988 a greater proportion of marked males was recaptured while the landscape was closed. (tall, mature-growth corn). In 1987, during the Þrst ßight of European corn borer, displacement to 800 m was southeasterly, south, or west, but during Þrst ßights in 1986 and 1988, displacement to 800mwas predominately northeasterly. During the second ßight in midsummer, displacement to 800 m for all 3 yr of the study also was northeasterly. Recapture results from 1986 suggest that male movement.800mis common. During the Þrst release set (early summer), 37% of the males recaptured ßew 800 m or more and 8% ßew 3.2kmor more. During the second release set (late summer), 51% of the males recaptured ßew 800m or more and 11% ßew 3.2 km or more. The recommendation for placement of nontransgenic corn (Zea mays L.) as refuge in the Corn Belt is a half mile or closer to Bacillus thuringiensis Berliner (Bt)-corn if the refuge corn is not sprayed and a quarter mile or closer when the refuge corn is sprayed. Based on the dispersal results from this study, at least in Iowa, a half-mile proximity recommendation should be robust. Studies still should be conducted in other regions, especially where corn is commonly irrigated, to determine whether European corn borer adult movement patterns are similar. During the second ßight in midsummer, displacement to 800 m for all 3 yr of the study also was northeasterly. Recapture results from 1986 suggest that male movement Ͼ800 m is common. During the Þrst release set (early summer), 37% of the males recaptured ßew 800 m or more and 8% ßew 3.2 km or more. During the second release set (late summer), 51% of the m...

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Section: Discussionmentioning

confidence: 99%

Aggregation and Dispersal Behavior of Marked and Released European Corn Borer (Lepidoptera: Crambidae) Adults

et al. 2001

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“…Several factors have been proposed to govern the selection of aggregation sites, including presence of dew droplets, temperature, humidity, distance from corn stands, plant species, and plant architecture (Hodgson 1928, Showers et al 1976, DeRozari et al 1977, Hellmich et al 1998, Pleasants and Bitzer 1999, Showers et al 2001, Anderson et al 2003, Sappington 2005. Hellmich et al (1998) found that several grain crops including oats (Avena spp.)…”

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confidence: 99%

“…Although bromegrass is an important component of aggregation sites for adults during the Þrst ßight, which occurs in spring and early summer, it senesces during midsummer and is relatively unattractive to adults of the second ßight (Showers et al 2001). Typically, giant foxtail is attractive to adults later in the summer (Pleasants and Bitzer 1999).…”

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confidence: 99%

Dispersal of Newly Eclosed European Corn Borer Adults (Lepidoptera: Crambidae) from Corn into Small-Grain Aggregation Plots

Reardon

Sumerford

Sappington

2006

Journal of Economic Entomology

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“…Mason et al (1996) mentioned that soybean, potato, and cotton also can serve as resting and mating sites. Much is known about the characteristics of the European corn borer adult aggregation sites themselves, including species composition, grass height, vegetation density, canopy closure, and vegetative structure (Showers et al 1976, Hellmich et al 1998, Pleasants and Bitzer 1999, Anderson et al 2003. Thus, the factors that make an individual site suitable for moth aggregation are relatively well described, but the need to search among grassy areas for moth concentrations (Sappington and Showers 1983a, Derrick and Showers 1990, 1991 suggests that not all suitable sites harbor moth aggregations.…”

mentioning

confidence: 99%

First-Flight Adult European Corn Borer (Lepidoptera: Crambidae) Distribution in Roadside Vegetation Relative to Cropping Patterns and Corn Phenology

Sappington

2005

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Aggregation Sites for Adult European Corn Borers (Lepidoptera: Crambidae): A Comparison of Prairie and Non-Native Vegetation

Cited by 13 publications

References 10 publications

Aggregation and Dispersal Behavior of Marked and Released European Corn Borer (Lepidoptera: Crambidae) Adults

Aggregation and Dispersal Behavior of Marked and Released European Corn Borer (Lepidoptera: Crambidae) Adults

Dispersal of Newly Eclosed European Corn Borer Adults (Lepidoptera: Crambidae) from Corn into Small-Grain Aggregation Plots

First-Flight Adult European Corn Borer (Lepidoptera: Crambidae) Distribution in Roadside Vegetation Relative to Cropping Patterns and Corn Phenology

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