Parasitism of Northern Corn Rootworms (Chrysomelidae: Diabrotica barberi) by Celatoria diabroticae (Tachinidae) in South Dakota: New Geographic Record

2008 ◽  
Vol 81 (4) ◽  
pp. 392-393 ◽  
Author(s):  
Deirdre A. Prischmann ◽  
Kenton E. Dashiell
Keyword(s):  
South Dakota ◽  
Diabrotica Barberi ◽  
Corn Rootworms ◽  
New Geographic Record

Diabrotica barberi. [Distribution map].

2004 ◽  
Author(s):  
Keyword(s):  
New York ◽  
North Carolina ◽  
South Carolina ◽  
New Brunswick ◽  
South Dakota ◽  
Rhode Island ◽  
New Hampshire ◽  
Distribution Map ◽  
Diabrotica Barberi ◽  
New Distribution

Abstract A new distribution map is provided for Diabrotica barberi Smith & Lawrence. Coleoptera: Chrysomelidae Hosts: Maize (Zea mays) and other cereals (Poaceae). Information is given on the geographical distribution in NORTH AMERICA, Canada, Manitoba, New Brunswick, Ontario, Quebec, USA, Alabama, Arkansas, Colorado, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Vermont, Virginia, West Virginia, Wisconsin.

scholarly journals Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, Diabrotica barberi) by a Soil-Dwelling Mite (Acari: Laelapidae: Stratiolaelaps scimitus)

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 979
Author(s):  
Deirdre A. Prischmann-Voldseth ◽  
Stephanie J. Swenson ◽  
Robert Brenner
Keyword(s):  
Natural Enemies ◽  
Insect Pests ◽  
Floral Resources ◽  
Corn Rootworm ◽  
Diabrotica Barberi ◽  
Dietary Preferences ◽  
Pollen Feeding ◽  
Corn Rootworms ◽  
Feeding Specialization ◽  
Stratiolaelaps Scimitus

Landscape diversification with flowering plants can benefit pollinators and natural enemies, although insect pests can also use floral resources for nutrition and chemoprotection. Corn rootworms (Coleoptera: Chrysomelidae, Diabrotica spp.) are major pests of corn (Zea mays L.), and while subterranean larvae primarily feed on corn roots, adult rootworms commonly consume floral resources from other plant species. We quantified the species, density, and sex of adult corn Diabroticite rootworm beetles on wild and cultivated sunflower, corn, and squash, quantified pollen within the bodies of adult northern corn rootworms [NCR, D. barberi (Smith & Lawrence)], and investigated how consumption of sunflower and corn pollen by NCR adults impacted predation of their eggs by two soil-dwelling mites with different feeding specialization. NCR were the most common Diabroticite species on sunflower inflorescences and western corn rootworm (WCR, D. v. virgifera LeConte) were more abundant in corn and squash blossoms. Pollen feeding by NCR adults did not impact egg predation by omnivorous Tyrophagus putrescentiae (Schrank) (Acari: Sarcoptiformes, Acaridae), but predatory Stratiolaelaps scimitus (Womersley) (Acari: Mesostigmata, Laelapidae) ate eggs less frequently and took longer to feed on eggs from NCR females that had fed on sunflower pollen. This research suggests pollen feeding by adult NCR can impact predation of their eggs. While increasing plant diversity can benefit natural enemies and pest control within agroecosystems, it is important to consider how floral resources alter dietary preferences of biocontrol agents.

scholarly journals Cultivation and Planting-Time Insecticide Treatments for Control of Corn Rootworms in South Dakota, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 196-197
Author(s):  
B. W. Fuller ◽  
M. A. Boetel
Keyword(s):  
South Dakota ◽  
Feeding Damage ◽  
Planting Time ◽  
Corn Rootworms ◽  
Insecticide Efficacy ◽  
Scale Data

Abstract Cornfields located near New Holland and Garretson in central and eastern South Dakota, respectively, were chosen for this study. The experiment was conducted to evaluate insecticide efficacy using ground-driven Noble metering and electronic Smartbox metering units with band or in-furrow insecticide placement methods for control of northern and/or western com rootworm larvae. Treatment plots (15.2-m-long rows spaced 0.96 m apart) were arranged in a RCB design with four replications. Noble and Smartbox metering units were calibrated on the planter prior to insecticide applications. Banded treatments were applied in an 18-cm swath in front of the furrow-closing wheels, and incorporated by the wheels and drag chains. In-furrow applications consisted of directing granules immediately between double-disk furrow openers. Pioneer IR-3751 (100-day) com seed was planted at approximately 23,000 kernels per acre at each location. Five roots per replicate were dug, washed, examined for feeding damage, and rated using the Iowa 1 to 6 scale. Data were analyzed with the ANOVA procedure and means were compared using LSD.

SEQUENTIAL SAMPLING OF ADULT NORTHERN AND WESTERN CORN ROOTWORMS (COLEOPTERA: CHRYSOMELIDAE) IN SOUTHERN ONTARIO

1987 ◽  
Vol 119 (6) ◽  
pp. 577-585 ◽  
Author(s):  
H.J. McAuslane ◽  
C.R. Ellis ◽  
O.B. Allen
Keyword(s):  
Negative Binomial ◽  
Sequential Sampling ◽  
Ratio Test ◽  
Economic Threshold ◽  
Diabrotica Barberi ◽  
Southern Ontario ◽  
Sampling Plans ◽  
Field Corn ◽  
Corn Rootworms ◽  
Sequential Probability

AbstractThree sequential-sampling plans were developed for adult Diabrotica barberi Smith and Lawrence and D. virgifera virgifera LeConte in field corn in southern Ontario. The distribution of both species was well approximated by the negative binomial distribution and obeyed Taylor’s power law. Two plans, following the methods of Kuno (1969) and Green (1970), estimated populations with predetermined precision. The third plan, based on Wald’s (1947) sequential probability ratio test, categorized populations relative to an economic threshold. Different sequential-sampling plans were constructed for 1st-year fields and for all other fields because the parameter k, measuring the extent of aggregation of the beetles, differed between these two classes of fields. Decision equations for Wald’s plan in 1st-year fields were: D1 = 0.98n − 17.75 and D2 = 0.98n + 13.82. Decision equations for 2nd-year or older fields were: D1 = 0.99n − 13.42 and D2 = 0.99n + 10.45. The use of Wald’s plan reduced the required sample size by 55% in 1st-year fields, and by 48% in all other fields. The savings associated with the other sequential-sampling plans were not significant.

Use of the AMA Guides in State Workers' Compensation Systems: 2009 Update

2009 ◽  
Vol 14 (2) ◽  
pp. 13-16
Author(s):  
Christopher R. Brigham ◽  
Jenny Walker
Keyword(s):  
New York ◽  
North Carolina ◽  
South Carolina ◽  
South Dakota ◽  
Rhode Island ◽  
Workers Compensation ◽  
Fourth Edition ◽  
Sixth Edition ◽  
Specific Guideline ◽  
Compensation Systems

Abstract The AMAGuides to the Evaluation of Permanent Impairment (AMA Guides) is the most widely used basis for determining impairment and is used in state workers’ compensation systems, federal systems, automobile casualty, and personal injury, as well as by the majority of state workers’ compensation jurisdictions. Two tables summarize the edition of the AMA Guides used and provide information by state. The fifth edition (2000) is the most commonly used edition: California, Delaware, Georgia, Hawaii, Kentucky, New Hampshire, Idaho, Indiana, Iowa, Kentucky, Massachusetts, Nevada, North Dakota, Ohio, Vermont, and Washington. Eleven states use the sixth edition (2007): Alaska, Arizona, Louisiana, Mississippi, Montana, New Mexico, Oklahoma, Pennsylvania, Rhode Island, Tennessee, and Wyoming. Eight states still commonly make use of the fourth edition (1993): Alabama, Arkansas, Kansas, Maine, Maryland, South Dakota, Texas, and West Virginia. Two states use the Third Edition, Revised (1990): Colorado and Oregon. Connecticut does not stipulate which edition of the AMA Guides to use. Six states use their own state specific guidelines (Florida, Illinois, Minnesota, New York, North Carolina, and Wisconsin), and six states do not specify a specific guideline (Michigan, Missouri, Nebraska, New Jersey, South Carolina, and Virginia). Statutes may or may not specify which edition of the AMA Guides to use. Some states use their own guidelines for specific problems and use the Guides for other issues.

Passing Through South Dakota: PTSD

1998 ◽  
Vol 43 (12) ◽  
pp. 857-858
Author(s):  
Warren P. Edwards
Keyword(s):  
South Dakota
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