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Matt Grieshop
2004 Ramp Progress Report
Past 12 Month Summary:
Three species of Trichogramma spp (Hymenoptera: Trichogrammatidae) egg
parasitoids have been under evaluation as biological control agents for the
Indianmeal moth (Plodia interpunctella Lepidoptera: Pyralidae) in warehouses and
retail stores. Host-oraging efficiency trials at three spatial scales, ranging
from Petri dishes to whole shelving units, have been completed for T. deion and
T. ostriniae and T. pretiosum. Foraging efficiency appears to be most similar
among the three species at the smallest spatial scale, however T. deion appears
to be the best forager, especially at the largest scale. Additionally shelving
type and package density have been examined as factors that might mitigate T.
deion's foraging efficiency. Preliminary results indicate that shelving type but
not packaging may impact foraging success. Several release locations for T.
deion have been explored on gondola shelving. This data will be used to develop
release guidelines for product managers/pest management professionals. Finally a
combination of packaging T. deion and the larval parasitoid Habrobracon hebetor
(Hymenoptera: Braconidae) have been examined and suggests that T. deion are
capable of protecting packaged stored products and H. hebetor capable of killing
wandering instar in both packaged and unpackaged stored products.
Year 5 Plan of Work:
Data for the three species will be analyzed and an expected 4-6 publications and
a Doctoral Dissertation will be completed by May 2004. Additional trials
exploring the possibility of combing Insect Growth Regulators (such as
Methoprene or Hydroprene), Trichogramma, and/or H. hebetor for the protection of
packaged stored products may also be conducted.
Presentations:
 | Grieshop, M.J., P.W. Flinn, J.R. Nechols. 2004. Foraging success of three
species of Trichogramma in simulated retail environments. An oral
presentation presented at the Entomological Society of America national
meetings. Salt Lake City UT. November 15, 2004. |
| Grieshop, M, P.W. Flinn, J.R. Nechols. 2003. Progress in the biological
control of the Indianmeal moth by Trichogramma in warehouse and retail store
environments. Oral presentation at the annual RAMP CIMSPIP meeting at KSU in
Manhattan, KS. November 2003. |
| Grieshop, M.J., P.W. Flinn, J.R. Nechols. 2004. Biological control of the
Indianmeal moth on finished stored products using egg and larval
parasitoids. Poster presented at the 2004 North Central Entomological
Society of America Conference in Kansas City, MO. March 2004. |
Awards/Honors:
| Received runner up in the PhD oral presentation competition at the 2004
National ESA meetings in November of 2004. |
| Received second place in the PhD poster competition at the 2004 North
Central Branch ESA meetings in March of 2004. |
| Received the Golden Key Honor Society's "Outstanding Graduate
Teaching Assistant of 2004" Award on April 30 2004. |
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