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Publication Interactions Between Pieris oleracea and Pieris rapae (Lepidoptera: Pieridae) Butterflies, and the Biological Control Agents Cotesia glomerata and Cotesia rubecula (Hymenoptera: Braconidae).(2013-02) Herlihy, Megan VPieris oleracea, formerly Pieries napi, was once a widespread pierid butterfly in New England until the introduction of a biological control agent, Cotesia glomerata. It has been suggested that C. glomerata is responsible for the range reduction of P. oleracea. There are been several introductions of a second more specialized biological control agent, Cotesia rubecula, to the United States since the 1960’s. My first goal was to determine the current distribution and status of P. rapae parasitoids and the effectiveness of C. rubecula as a biological control agent since its release. The findings of a survey I conducted of the parasitoid community of P. rapae indicate that C. rubecula now occurs as far west as North Dakota and has become the dominant parasitoid of P. rapae in the northeastern and north central United States and adjacent parts of southeastern Canada, where it has displaced C. glomerata, the previously dominant parasitoid. Survival of artificially established cohorts of P. rapae larvae was assessed in a collard patch on an organic vegetable farm in western Massachusetts. There was a significant drop in larval survival between the 4th and 5th instar due to parasitism by C. rubecula. This was change from survival curves of P. rapae from a 1985-1986 study, in which there was a significant drop in survival between the 5th instar and pupal stage due to C. glomerata. The final goal of my thesis work is to try to understand why P. oleracea was able to survive at the focal study site in Lenox, MA despite parasitoid pressure and range reduction elsewhere in New England. In olfactometer tests, there was no difference in attractiveness of naïve C. glomerata females to volatiles of either Cardamine pratensis (cuckooflower) foliage, the host plant of P. oleracea or Brassica olercea (collard) foliage (P = 0.51). In order to determine if overtopping by other vegetation may provide an enemy free space for P. oleracea by affecting detection by C. glomerata, cage experiments were conducted. Overtopping vegetation had a significant effect on parasitism by C. glomerata (F = 12.8, df = 3, PP. oleracea has been able to thrive at the Lenox, MA site.Publication The role of nutrition in the reproductive biology of the apple maggot, Rhagoletis pomonella (Walsh).(1978) Webster, Reginald PaulPublication Mosquito vectors of dog heartworm, Dirofilaria immitis (Nematoda: Filariodea) in western Massachusetts.(1976) Arnott, John JamesPublication Development of vitellogenic competence in the fat body of the yellow fever mosquito, Aedes aegypti.(1976) Flanagan, Thomas RaymondPublication The female terminalia of the Aedes mosquitoes occurring in New England.(1964) Nelson, Vernon AlfredPublication Observations on the biology and ecology of the little house fly, Fannia canicularis (L.).(1959) Steve, Peter ChristyPublication The biology of the meadow spittlebug, Philaenus leucophthalmus (L.), in Massachusetts.(1958) Lavigne, Robert J.Publication The use of systemic insecticides for the control of some insects attacking ornamental trees and shrubs.(1954) Ames, Frederick OliverPublication The biology of the blueberry fleabeetle, Altica sylvia Malloch, with preliminary investigations on its control.(1952) Weidhaas, John AugustPublication A study of effectiveness of vaporized Lindane against certain structural pests.(1951) Moore, StevensonPublication An investigation of certain aspects of blackfly control.(1951) Jamnback, Hugo AndrewPublication The life history of Esthiopterum columbae Linnaeus with notes on Goniocotes bidentatus Scop.(1942) Fischman, Arnold ErwinPublication Publication Publication The effect of diet on survival and rate of growth of the firebrat, Thermobia domestica Packard.(1938) Whittemore, Frederick WinsorPublication Fluctuation in tent caterpillar abundance and some of the factors influencing it.(1938) Tomlinson, William EdwardPublication A study of the insects inhabiting the forest floor in certain forest types on Mount Toby, Sunderland, Massachusetts.(1938) Kulash, Walter MichaelPublication The external morphology of Prionus laticollis Drury (Coleoptera: Cerambycidae).(1938) Daniels, Charles H.