TY - JOUR A1 - Becker, Günther A1 - Gerisch, Wolfgang T1 - Sonnenflecken wirken auf Mensch und Tier PY - 1980 SN - 0376-6829 IS - 228 SP - 71 PB - Neue Zürcher Zeitung CY - Zürich AN - OPUS4-30281 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Fluorine compounds for wood preservation N2 - Fluoride compounds have gained a considerable importance in wood preservation, especially in Germany and some other countries of Europe. They are used as single compounds or in mixtures of different compounds. The International Research Group on Wood Preservation which continues the activities of a former O.E.C.D.- Group, was aslced to prepare a survey on fluorides in wood preservation together with other papers on the present state of knowledge of wood preservatives and methods of application. Monofluorides and silicofluorides have been used in the field of wood preservation for about 60 years and special development and application of bifluorides (hydrogen fluorides) have been going on for 30 years. Much scientific work has been carried out on fluorides and much experience in practical use is available. It thus seems to be useful briefly to summarise the information on this group of compounds in wood preservation. Due to the voluminous literature, i.e. some 270 papers which are cited in the references, only an introduction into the Problems and main results but not a detailed review of the publications is possible. The subjects dealt with in the publications are indicated in the references. With some exceptions the brief survey is limited to the compounds and mixtures without chromium, which remain leachable in the wood. Questions of toxicity to human beings, animals and plants are not discussed in this paper. PY - 1973 VL - 32 SP - 51 EP - 62 AN - OPUS4-45409 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Becker, Günther T1 - Protection of Wood Particle Board against Termites N2 - Particle boards are of increasing economic importance. Without special treatment they are destroyed by termites. Deterioration of unprotected material as well as possibilities and present knowledge of preservation against termite attack are briefly described. Recent laboratory experiments with particle board treated to make it resistant to humidity and basidiomycete fungi showed that only one organic preservative out of four protected the boards also against termite attack; one of two water-soluble preservatives gave promising results. Heterotermes indicola (Wasmann) from India proved to be more aggressive and resistant to the preservatives than Coptotermes amanii (Sjöstedt) from Kenya and Nasutitermes nigriceps (Haldemann) from Guatemala. Kalotermes flavicollis (Fabr.) from Italy was also very tolerant to the fungicidal preservatives. Further development of treatments of particle board against termites is required. T2 - The World Consultation on the Use of Wood in Housing CY - Vancouver, B. C., Canada DA - 05.07.1971 KW - Material Processing KW - India KW - Laboratory Experiment KW - Promising Result KW - Special Treatment PY - 1972 VL - 6 IS - 3 SP - 239 EP - 248 PB - Springer AN - OPUS4-45428 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther A1 - Gerisch, Wolfgang T1 - Geomagnetobiological Rhythms of Termite Feeding Activity and Related Rhythms PY - 1981 SN - 0022-1945 VL - 12 IS - 3 SP - 247 EP - 256 PB - Swets & Zeitlinger CY - Amsterdam AN - OPUS4-33391 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Beobachtungen über Schädlichkeit, Fraß und Entwicklungsdauer von anobium punctatum De Geer ("Totenuhr") PY - 1942 IS - 30 SP - 602 PB - Springer CY - Berlin AN - OPUS4-17185 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther A1 - Schulze, Bruno T1 - Prüfung der insektentötenden Wirkung von Holzschutzmitteln PY - 1942 IS - 30 SP - 603 PB - Springer CY - Berlin AN - OPUS4-17199 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schulze, Bruno A1 - Becker, Günther T1 - Larven von Mulmbock- und Rothalsbockkäfer zur Prüfung der insektentötenden Wirkung von Holzschutzmitteln PY - 1942 IS - 30 SP - 603 EP - 604 PB - Springer CY - Berlin AN - OPUS4-17202 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Prüfung der vorbeugenden Wirkung von Holzschutzmitteln gegen Eiablage und Eientwicklung sowie als Berührungs- und Atmungsgifte gegenüber Eilarven des Hausbockkäfers PY - 1942 IS - 30 SP - 604 PB - Springer CY - Berlin AN - OPUS4-17203 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schulze, Bruno A1 - Becker, Günther T1 - Die Prüfung der insektentötenden Wirkung von Holzschutzmitteln mittels Anobium punctatum De Geer (=A.striatum Oliv.) als Versuchstier PY - 1940 IS - 26 SP - 423 EP - 424 PB - Springer CY - Berlin AN - OPUS4-17050 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Becker, Günther T1 - Die Prüfung der insektiziden Wirkung von Holzschutzmitteln mittels Anobium punctatum De Geer (=A. striatum Oliv.) als Versuchstier PY - 1940 IS - 26 SP - 422 PB - Springer CY - Berlin AN - OPUS4-17043 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -