Delaware Chapter, ASA

Dinner Meeting: October 2010


Meeting location: Courtyard Marriott located close to Claton Hall Conference Center on the University of Delaware Laird Campus. Marriott Courtyard     pictures

Speaker:   Author: Dr. Bruce H. Stanley
Presenter: Zaiqi Pan
DuPont Pioneer Hi-Bred International
Title:   Geometric, movement and temporal considerations in mate finding in the corn rootworm (Diabrotica spp.) with emphasis on blended refuge


The corn rootworm (CRW) is a complex of three species that are very important pests of corn in the mid-western and eastern United States. They are also established in Europe, and their range is continuing to expand. The CRW is a relatively small, defenseless insect that causes damage to corn by destroying the roots of corn plants by their larval feeding. In addition to retarding growth, the damaged corn plants are also prone to lodging (i.e., falling over) which reduces yield by impeding harvest. Much of the corn planted now contains the soil bacterium, Bacillus thuringiensis (Bt), toxin which protects the corn from damage by the CRW. Extensive work is being done to determine ways to preserve the efficacy of the Bt-protected crop in preventing CRW damage. Should the CRW develop resistance, i.e., the ability to survive the Bt toxin, extensive economic damage will result in loss of corn production. There are a number of factors that impact mate finding in the CRW, and thus successful reproduction, including the geometry of refuge placement, ability of the insect to move, and temporal mating pattern.

This talk will explore the statistical dimensions of these phenomena, and reflect on the intense genetic selection pressure, gene flow, genetic "bottlenecking", and "island" biogeography as it relates to the development and establishment of genetically homogeneous resistant populations.


A biostatistician in the DuPont Pioneer Hi-Bred Intl Company which is based in Johnston, Iowa, Dr. Stanley received his doctorate from Cornell University, where he studied the application of probabilistic modeling to integrated insect pest management. Over his career at DuPont, he has worked as a research entomologist, eco-toxicologist and statistician. Currently, he is a Senior Research Scientist in Trait Characterization & Development of the Agricultural Biotechnology Department working from home in Lodi, New York. He leads a small group of statisticians and modelers. He was a former Vice President of the DE Chapter of the ASA.

Date: Thursday, October 21, 2010

Social time -- 6:00 pm
Seated/order -- 6:20 pm
Dinner -- 6.:45 pm
Speaker -- 7:20 pm

Courtyard by Marriott, Newark University of Delaware
400 Pencader Way
Newark, DE   Directions/Map

Note: Please bring cash to streamline the logistics. Thanks.

All sandwiches come with your choice of any one of our special spuds or sides. French fries, Old Bay Fries, Garlic Butter Fries, Baked Potato, side salad, Vegetable of the day, Chips or a Fruit Salad. Add a bowl of hearty soup for $3.50.


  • Durango Chicken Sandwich $10.00: Breast of chicken, our Sweet Baby Ray's BBQ sauce, melted cheese, tomatoes, and a pile of thick bacon on a brioche roll. Of course we plate it up with our tasty, golden fries.

  • Salmon Cake $10.00: Eight ounces of fresh Atlantic salmon cake, full of Omega 3, spring greens, thinly sliced red onions and tomato, on a brioche roll with a side of bayou mayo.

  • The Newark Harvest $11.00: A mix of young Mesclun field greens, local Milburn Orchard apples, brandied cranberries, blue cheese crumbles and healthy walnuts in a light raspberry vinaigrette. Add chicken, grilled shrimp or a 6 oz salmon filet for $5.00

  • Jumbo Lump Crab cake: $13.00 : Jumbo Lump Crabmeat, NO Fillers, pan-seared until golden brown Served with a Creole-style mustard sauce.


Cost: $10 for members/others, students $5 (plus dinner)
Reservations to: 

Irina Baldytcheva by Wednesday, October 20, 2010.
Phone: 302-885-9136
Email: Irina Baldytcheva.

Please note: Be sure to RSVP by this date.

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