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Life History Of A Ponderosa Pine Coneworm, Dioryctria Auranticella (Lepidoptera: Pyralidae), Judith E. Pasek, Mary Ellen Dix
Life History Of A Ponderosa Pine Coneworm, Dioryctria Auranticella (Lepidoptera: Pyralidae), Judith E. Pasek, Mary Ellen Dix
Judith E Pasek
Dioryctria auranticella (Grote), a coneworm that infests ponderosa pine, Pinus ponderosa Douglas ex. P. Lawson and Lawson, and Austrian pine, P. nigra Arnold, in southeastern Nebraska is univoltine. Head capsule measurements indicate five instars. First instars apparently overwinter in hibernaculae. Second and third instars feed in male and female pine flowers during early May. Fourth and fifth instars tunnel in second-year cones for about 2-3 wk between mid-May and mid-June and often require two cones to complete development. Larvae pupate within cones during June, and adults are active from mid-June to late July. at 26C, eggs hatch in 6-9 d. …
Genetics Of Screwworm, New Genetic Markers And Preliminary Linkage Map., David B. Taylor
Genetics Of Screwworm, New Genetic Markers And Preliminary Linkage Map., David B. Taylor
David B. Taylor
Eight new genetic markers for Cochliomyia hominivorax (Diptera: Calliphoridae), the screwworm, are characterized. The markers include three eye mutants, lemon-eye (Ie), cherry-eye (ch), and red-eye (re); one wing mutant, curly-wing (cw); and four allozyme markers, amylase (Amy-1), glycerol-3-phosphate dehydrogenase (Gpd), phosphoglucomutase (Pgm), and octanol dehydrogenase (Odh). The markers are associated into four linkage groups. Radiation-induced translocations were used to correlate the linkage groups with their respective chromosomes. A preliminary genetic linkage map with these and three previously characterized loci is presented.