University of Maryland, Ph.D. in Entomology, 1999.
Cornell University, B.S. with high honors in Biology, 1991.
My research interests focus on tritrophic level interactions, insect behavior, and ecology of insect predators and parasitoids. My goal is to contribute to the science of biological control in particular through the study of how plant characteristics influence the behavior and efficacy of insect natural enemies. Work in my lab is examining the use of insectary plants for beneficial insect conservation, the plant feeding preferences of vegetable insect pests and the egg parasitoid species attacking the brown marmorated stink bug in Connecticut.
Selected Research and Extension Publications:
Legrand, A. 2016. Survival of adult Japanese beetle Popillia japonica exposed to Metarhizium brunneum (Petch) F52. 2015 Annual UConn Turfgrass Research Report. UConn Department of Plant Science and Landscape Architecture. http://www.turf.uconn.edu/pdf/research/reports/2015%20UConn%20Annual%20Turf%20Research%20Report.pdf
Legrand, A. 2015. Using beneficial nematodes for turfgrass insect pest management. UConn IPM Program Fact Sheet. University of Connecticut. http://ipm.uconn.edu/documents/raw2/html/977.php?aid=977
Legrand, A. 2015. Use of peonies to conserve spring tiphia parasitoids of white grubs: a three year study. 2014 Annual UConn Turfgrass Research Report. UConn Department of Plant Science and Landscape Architecture. http://www.turf.uconn.edu/pdf/research/reports/2014%20UConn%20Annual%20Turf%20Research%20Report.pdf
Obeysekara, P.T. and A. Legrand. 2014. The influence of host species and location in the host detection ability of Tiphiid (Hymenoptera:Tiphiidae) Parasitoids. Environmental Entomology: 43(6): 1594-1602. http://esa.publisher.ingentaconnect.com/content/esa/envent/2014/00000043/00000006/art00014
Obeysekara, P. T., and A. Legrand. 2014. Analysis of Tiphia parasitoids pre-ovipositional behaviors and of their scarab host defensive responses. Biological Control 69: 97-106. http://www.sciencedirect.com/science/article/pii/S1049964413002740
Obeysekara, P.T., A. Legrand and G. Lavigne. 2014. Use of herbivore-induced plant volatiles as search cues by Tiphia vernalis and Tiphia popilliavora to locate their below-ground scarabaeid hosts. Entomologia Experimentalis et Applicata (150):74–85. http://onlinelibrary.wiley.com/doi/10.1111/eea.12138/abstract
Legrand, A. 2014. Plants that attract beneficial arthropods: a list of plants documented to attract natural enemies of pests. IPM Program Fact Sheet. University of Connecticut Cooperative Extension System. Updated March 2014. http://ipm.uconn.edu/documents/raw2/html/555.php?aid=555
SPSS1125 - Insects, Food and Culture, Fall semester, odd-years
SPSS 3840/SAPL 840 - Integrated Pest Management, Spring semester
SPSS 3830 – Horticultural Entomology, Fall semester, even-years
Entomological Society of America
University of Connecticut Association of Latino Faculty and Staff
The beneficial hover fly on dill flower.
Brown marmorated stink bug