Abstract Several previous studies have reported geographic variation and/or latitudinal clines of morphological sexual characteristics, but there are few that consider reproductive traits not morphological. Here, we measured the proportion females fertilized by males, frequency failure in and number female copulations red flour beetle Tribolium castaneum collected from fields Japan to investiga...

Two field strains of the Indianmeal moth, Plodia interpunctella (Hübner); red flour beetle, Tribolium castaneum (Herbst); and lesser grain borer, Rhyzopertha dominica (F.), and one field strain of the rusty grain beetle, Cryptolestes ferrugineus (Stephens), were collected from hard red winter wheat stored on farms in northeastern Kansas. Fifty eggs of P. interpunctella and 25 beetle adults of e...

We carried out trials on the commercial applications of nitrogen in different industrial structures, using phosphine-susceptible and -resistant populations three stored product beetle species, red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), rice weevil, Sitophilus oryzae (L.) Curculionidae), saw-toothed grain Oryzaephilus surinamensis Silvanidae). Twelve were conduct...

The Getty Conservation Institute and the J. Paul Getty Museum have been studying the use of low oxygen atmospheres using nitrogen for pest eradication. Earlier work by Nieves Valentin and Frank Preusser found that a 30-hour exposure to an atmosphere of 0.5% oxygen and 99.5% nitrogen killed all life stages of the fruit fly (Drosophila melanogaster) [1]. In a collaborative project at the Universi...

Studies of forest declines are important, because they both reduce timber production and affect successional trajectories of landscapes and ecosystems. Of particular interest is the decline of red pines which is characterized by expanding areas of dead and chlorotic trees in plantations throughout the Great Lakes Region. Here we examine the impact of two bark beetle groups, namely red turpentin...

Specific IgE to proteins from Tribolium confusum (TC), a flour beetle, was detected in 9/125 sera of subjects exposed to rye and wheat flour. TC RAST was not inhibited by Dermatophagoides pteronyssinus, rye or wheat flour. Immunoblot experiments showed specific binding to three proteins from adult TC or pupae, not present in rye or wheat flour. These findings suggest that TC might act as an occ...