17 research outputs found
Pheromone Lures to Monitor Sparse Populations of Spruce Budworm, \u3ci\u3eChoristoneura Fumiferana\u3c/i\u3e (Lepidoptera: Tortricidae)
Four types of spruce budworm pheromone lures were field-tested in sparse spruce budworm populations in Maine. BioLures® with constant pheromone emission rates less than 1.0, ca. 1.0-1.5, and ca. 15.0 micrograms of pheromone per day were compared to polyvinyl chloride (PVC) lures with rapidly decreasing pheromone emission rates. Mean trap catch was roughly proportional to lure emission rates. All lures continued to catch moths over the entire flight period but moth catches with the three lowest emission-rate lures were judged to be too low. BioLures with the highest emission rate (15.0 micrograms of pheromone per day) showed the lowest variability in trap catch and the fewest zero trap catches
Associated Insects Reared from Galls of Saperda Inornata (Coleoptera: Cerambycidae) on Trembling Aspen in Michigan
The poplar gall Saperda, Saperda inornata Say, is a common pest of trembling aspen, Populus tremuloides Michx, in Michigan forests. Through its egg-laying activities and larval feeding, this insect causes wood defects and tree mortality (Graham et al., 1963). While studying natural populations of this insect (Grimble and Knight, 1970), we collected many galls and found through rearing and dissection that they harbor a large and varied insect fauna
An oviposition and egg viability study of Oberea schaumii Lec. and Saperda concolor Lec. infesting t
Master of ScienceForestryUniversity of Michiganhttp://deepblue.lib.umich.edu/bitstream/2027.42/106317/1/39015003262600.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/106317/2/39015003262600.pdfDescription of 39015003262600.pdf : Restricted to UM users only
Temporal changes in presence of late instar Mitoura spinetorum (Lycaenidae) in eastern Oregon
Volume: 47Start Page: 329End Page: 33
Distribution of a northern fauna of Noctuidae in the mountains of Oregon
Volume: 51Start Page: 97End Page: 10
A survey of the Lepidoptera fauna from the Blue Mountains of eastern Oregon
Volume: 31Start Page: 83End Page: 10
Instar development of the Douglas-fir tussock moth in relation to field temperatures /
"July 1993."Shipping list no. 94-0274-M.Distributed to depository libraries in microfiche.Includes bibliographical references (p. 4)Mode of access: Internet
New Lepidoptera records for the Blue Mountains of eastern Oregon /
"November 1993."Cover title.Includes bibliographical references (p. 6).Mode of access: Internet