<Emphasis Type=Italic>Boletus kermesinus</Emphasis>, a new species of <Emphasis Type=Italic>Boletus</Emphasis> section <Emphasis Type=Italic>Luridi</Emphasis> from central Honshu,Japan

Boletus kermesinus, a new species of Boletus section Luridi, is fully described and illustrated based on the materials collected in subalpine coniferous forests of central Honshu, Japan. It has distinctive features of dark-red basidiomata having distinct viscidity in the pileus surface, usually unchanging flesh, discolorous red pores, and an entirely reticulate stipe becoming coarsely lacerate-rimose with age.     

Biology of <Emphasis Type=Italic>Eretmocerus sudanensis</Emphasis> n. sp. Zolnerowich and Rose,parasitoid of <Emphasis Type=Italic>Bemisia tabaci</Emphasis> Gennadius

Eretmocerus sudanensis = E. nr. emirates was released in 1992 into South Florida from Sudan to control Bemisia tabaci. It has since become the dominant Eretmocerus species in southwest Florida. Specimens were recovered at the Southwest Florida Research and Education Center in Collier County from a population of B. tabaci on collard Brassica oleracea, and the parasitoid described as new species, though as yet unpublished. Here we report results of studies conducted to evaluate the biology of this parasitoid of B. tabaci biotype B under laboratory controlled conditions (26°C ± 0.5, 13 h light, 62% ± 6 HR). No preoviposition period was observed for E. sudanensis. Females lived an average of 13.2 days and in this time deposited an average of 161 eggs at a mean oviposition rate of 13 eggs per day. The total compared favorably with published values for E. melanoscutus (123 eggs) and was similar to E. mundus (171 eggs). E. sudanensis showed the same tendencies of preference and suitability for the intermediate host stages (2nd and 3rd) as reported for these same 2 species. However, parameters such as development time from egg to adult (16 days) and net reproductive rate (Ro = 91.3 eggs/female) were shorter and greater, respectively, compared to published results for either E. melanoscutus or E. mundus under similar conditions. Such differences in demographic parameters could indicate a significantly greater reproductive potential for E. sudanensis.     

Genetic determination of wheat resistance against <Emphasis Type=Italic>Puccinia graminis</Emphasis> (f. sp. <Emphasis Type=Italic>Tritici</Emphasis>) derived from <Emphasis Type=Italic>Aegilops cylindrica,Triticum erebuni</Emphasis>, and amphidiploid 4

Lines of winter soft wheat with introgressed new and effective Sr genes were developed as a result of interspecies hybridization at the Plant Breeding and Genetics Institute. The 85/06 line possesses the SrAc1 gene; the 47/06, 54/06, 82/06, 85/06, 87/06, 238/06, and 367/06 lines carry the SrAc1 and SrAc2 genes originated from Aegilops cylindrica; the 352/06 line has the SrTe1 and SrTe2 genes from Triticum erebuni; and the 12/86-04 line contains the SrAd1 and SrAd2 genes from Amphidipoid 4 (Triticum dicoccoides × Triticum tauschii).