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Studies on the attractiveness of sex attractants towards Tortrix viridana L. and Panolis flammea Schiff. In a broadscale field-screening test it could be shown, that (Z)-9-tetradeeenyl acetate (I) or (Z)-9, (E)-12-tetradecadienyl acetate (II) could be used for selective trapping of Panolis flammea (Kieferneule). In similar tests (Z)-11-tetradecenyl acetate (III) showed remarkable attractiveness towards males of Tortrix viridana (Eichenwickler). These results could be useful to establish an european monitoring trapping-system for forest pests in an integrated pest management program. Zusammenfassung In Freilandversuchen in der Saison 1977/78 konnte (Z)-9-Tetradecenylacetat bei Tortrix viridana (Eichenwickler) sowie (Z)-9-, (E)-12-Tetradecadienylacetat und (Z)-9-Tetradecenylacetat bei Panolis flammea (Kieferneule) als selektiv Mannchen-anlockend erkannt werden. Es wird erlautert, das mit diesen Duftstoffen durch den Einsatz in Fallen eine standige Uberwachung gefahrdeter Forstbestande durchgefuhrt werden kann, so das integrierte Pflanzenschutzprogramme moglich sind. Die Problematik des Prognoseverfahrens und der Schadensschwellenbestimmung mit Hilfe von Pheromonfallen wird diskutiert.

As there are few reports on early evaluation of chimerism, we assessed fluorescence short tandem repeats (STR) by polymerase chain reaction (PCR) assays to analyse donor and recipient characteristics at early time points after peripheral stem cell transplantation (PBSCT). Peripheral blood of 13 patients was analysed in 1- to 2-day intervals starting from the day of PBSCT. Donor and recipient allelic patterns were determined by a commercially available multiplex STR assay that simultaneously evaluates four or five gene loci. Mixed chimerism appeared in all patients during days 1–9 after transplantation and preceded haematologic engraftment for 3–12 days. Even patients without myeloablative conditioning therapy (n=4) revealed donor allelic patterns within 1–5 days. Nine patients changed during the following days to a complete donor allelic pattern and had an uncomplicated post-transplant disease course. Four patients did not consistently retain complete donor chimerism; two of them relapsed within the next 3 months, one died from septicemia within 7 days, and the fourth, transplanted for aplastic anaemia, is still in complete remission. Overall, STR analysis using a simple and comparatively cheap multiplex system permits the detection of chimerism very early after transplantation and may provide relevant information that correlates with the clinical follow-up.

5,7-Dodecadienole, -Dodecadienylacetate und -Dodecadienale, wie sie als Sexuallockstoffe fur Lasiocampidae-Arten bekannt sind, wurden mittels Wittig-Olefinierung dargestellt. (5Z,7E)-5,7-Dodecadienal erwies sich als Pheromon des Kiefernspinners Dendrolimus pini. Pheromones, XL1). — Synthesis of the Pheromone Complex of Lasiocampidae Species (Lepidoptera); A Sex Attractant for Dendrolimus pini 5,7-Dodecadienols, -dodecadienyl acetates, and -dodecadienals — known as sex attractants of various Lasiocampidae species — were synthesized via Wittig olefination. (5Z,7E)-5,7-Dodecadienal was identified as a pheromone of Dendrolimus pini.

Aus dem Phosphoniumsalz (I) wird auf dem angegebenen Wege die Titelverbindung (VI) dargestellt.