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SMI: Owner Profiles


Dr. Barry M. Wilk

Highest Achievement:  Raised two brilliant, talented, and handsome boys.


  • University of California, Berkeley 1966-1967

  • University of California, Riverside.  1970-1974.  B.S. in Zoology in June 1972.  M.S. in Insect Behavior in March 1974.

  • University of California, Berkeley.  Ph.D. in Entomology in 1984.  Field of emphasis:  Insect Ecology / Biological Control

Employment Background

  1. Laboratory Helper.  Department of Entomology, University of California, Riverside. August 1971 to October 1971

  2. Laboratory Assistant.  Department of Entomology, University of California, Riverside.  April 1972 to September 1972.

  3. Research Associate.  Department of Entomology, University of California, Riverside.  September 1972 to March 1974.

  4. Staff Research Associate.  Department of Entomology, University of California, Riverside.  March 1974 to July 1974 and University of California, Berkeley.  July 1974 to March 1981

  5. Entomologist.  Ag Advisors, Inc.  1981 to 1982.

  6. Co-President.  Scientific Methods, Inc.  1982 to present.

M.S. Thesis

Title:  Development of Practicable Methods for Disruption of Sex Pheromone Communication of Pectinophora gossypiella (Gelechiidae).

Major objectives of the study:

  1. To determine the critical timing of sex pheromone release which insures maximum mating disruption with a minimum of chemical usage.

  2. To determine the extent to which residual pheromone levels may disrupt mating.

  3. To determine the ideal position of pheromone release sites during early and late season.

  4. To evaluate the field activity of the pheromone over time.

  5. To determine the role "edge effects" play in loss of mating disruption.

The purpose of this work was to gain critical information to aid in the implementation of a major 5000 acre sex pheromone mating disruption program under the direction of Dr. Harry H. Shorey.

Ph.D. Thesis

Title:  Bioclimatic studies of the walnut aphid, Chromaphis juglandicola Kaltenbach.

Major objectives of the study:

  1. A comparison of the effects of constant versus smoothly fluctuating temperature patterns on the developmental rate, longevity, and fecundity of C. juglandicola.

  2. To determine the bioclimatic interaction involved in the timing of the adult molt.

  3. An evaluation of the various methods of threshold determination.

The purpose of this project was to study the relationship between certain climatic factors of the environment and the capacity for increase of a phytophagous insect.  To gather the necessary data, experiments were conducted using bioclimatic chambers which provided diurnally fluctuating temperature conditions.  Further, these data were compared with those obtained under constant temperature and humidity conditions.

Fields of Interest

My areas of specialization are:  insect ecology, biological control and animal behavior.  My main research interests lie in the interaction of insect host - natural enemy systems.  I consider such aspects as (1) the role of hyperparasitism, or more specifically, adelphoparasitism, (2) the differential influence of environmental factors upon the host and/or the natural enemy, and (3) the role of behavioral modifying chimicals in host - natural enemy systems to be fruitful avenues of research.

Membership in Professional Societies

  • Entomological Society of America

  • Pacific Coast Entomological Society