Dale. G. Bottrell, Ph.D.

Professor
E-mail: bottrell@umd.edu
Phone: 301-405-3938
Mail: University of Maryland * Entomology Department * Plant Sciences Building * College Park, MD 20742


Research Interests

Current research is examining the potential of augmenting natural enemies by crop variety selection and modification. I am focusing on how intraspecific variation in corn (Zea mays) and chile peppers (Capsicum spp.) affects the attraction, fitness, and effectiveness of predators of lepidopteran pests. Work on corn is determining if pollen of different corn varieties varies in its effects on omnivorous predators. Work on Capsicum spp. is determining if the capsaicinoids in chile peppers mediate predation and if variation in the concentration of capsaicinoids across Capsicum varieties explains varietal difference in insect herbivory and biological control.

I am also interested in the broad issues of biodiversity and conservation biology, especially in the tropics. I have participated in the development of environmental assessments for the U. S. Agency for International Development in more than 25 developing countries of the tropics and served as team leader for one comprehensive Environmental Impact Statement (required by the National Environmental Policy Act) in the United States.


Education
B.S. degree, Entomology, Oklahoma State University, 1963
Ph.D. degree, Entomology, Oklahoma State University, 1968

Representative Publications

Mathews CR, Bottrell DG, Brown MW. 2004. Habitat manipulation of the apple orchard floor to increase ground-dwelling predators and predation of Cydia pomonella (L.) (Lepidoptera: Tortricidae) Biological Control 30:265-73

Mathews CR, Bottrell DG, Brown MW. 2002. A comparison of conventional and alternative understory management practices for apple production: multi-trophic effects. Applied Soil Ecology 21:221-31

Ehler LE, Bottrell DG. 2000. The illusion of integrated pest management. National Academy of Sciences, Issues in Science and Technology XVI (3):61-63

Theunis W, Aguda RM, Cruz WT, Decock C, Peferoen M, Lambert B, Bottrell DG, Gould FL, Litsinger JA, Cohen MB. 1998. Bacillus thuringiensis isolates from the Philippines: habitat distribution, d-endotoxin diversity, and toxicity to rice stem borers (Lepidoptera: Pyralidae). Bulletin of Entomological Research 88:335-42

Schoenly KG, Justo HD Jr, Barrion AT, Harris MK, Bottrell DG. 1998. Analysis of invertebrate biodiversity in a Philippine farmer's irrigated rice field. Environmental Entomology 27:1125-36

Bottrell DG, Barbosa P, Gould F. 1998. Manipulating natural enemies by plant variety selection and modification: a realistic strategy? Annual Review of Entomology 43:347-367

Bottrell DG. 1996. The research challenge for integrated pest management in developing countries: a perspective for rice in Southeast Asia. Journal of Agricultural Entomology 13:185-193

Rapusas HR, Bottrell DG, Coll M. 1996. Intraspecific variation in the chemical attractiveness of rice to insect predators. Biological Control 6:394-400

Coll M, Bottrell DG. 1996. Movement of an insect parasitoid in simple and diverse plant assemblages. Ecological Entomology 21:141-149

Coll M, Bottrell DG. 1995. Predator-prey association in mono- and dicultures: effect of maize and bean vegetation. Agriculture, Ecosystems and Environment 54:115-125

Bottrell DG, Weil RR. 1995. Protecting crops and the environment: striving for durability, pp. 55-73. In Juo SR, Freed RD eds., Agriculture and Environment: Bridging Food Production and Environmental Protection in Developing Countries. ASA Special Publication No. 60. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, Madison, WI

Demayo CG, Gould FL, Bottrell DG, Romena AM, Angeles AT. 1994. Geographic variation in larval survival and growth of five Scirpophaga incertalus (Lepidoptera: Pyralidae) strains on different rice hosts. Environmental Entomology 23:1428-1435

Coll M, Bottrell DG. 1994. Effects of nonhost plants on an insect herbivore. Ecology 75:723-731


Awards and Recognition

*Fellow of the Entomological Society of America (elected in 2004)
*University of Maryland Distinguished International Service Award, 2004
*College of Life Sciences Faculty Excellence Award for Teaching and Course Development, University of Maryland, 2003
*Vietamese Student Association Certification of Appreciation in Recognition of Outstanding Faculty Advisor, University of Maryland, 2001-2002
*Rockefeller Foundation Bellagio Resident, 1997
*Visiting Professor, University of the Philippines, Los Banos, Philippines, 1991-1993

Teaching

HONR 208V Biodiversity on the Decline: Society's Biggest Threat
BSCI 120 Insects
BSCI 328D Biodiversity and Conservation Biology Laboratory
BSCI 366 Biodiversity Issues in Conservation Management
CLFS 660 Biodiversity and Conservation Biology