Knkchtel (W. R.). Phlyctaenodes siicticalis, dem Tabak in Rumanien 

 schadlich. (P. siicticalis injuring Tobacco in Rumania.] — Zeitschr. 

 J. Pfianzenkrankheiten, Stuttgart, xxvii, no. 4, 15th August 1917, 

 p. 21(1. (Abstract from Intern. Agrar-Techn. Rundschau, 1916, 

 p. 377.) 



In 1915 the caterpillars of Phhjcta-enodes sticticaUs seriously damaged 

 tobacco in Eastern Rumania, skeletonising the leaves. 



Uffelx (K.). Beobachtungen Uter die Eiablage von Cheiinatohia 

 brumata, L., und anderer Herbstapanner. [Observations on the 

 Ovipositioji of C. brnmata and other Autumn Moths.] — Zeitschr. 

 /. Pfianzenkrankheiten, Stuttgart, xxvii, no. 4, 15th August 1917, 

 pp. 210-211. (Abstract from Zeitschr. Wiss. Imekt. Biol., xii, 

 1916, pp. 121-124 & 169-175.) 



In this reply to a paper by Schneider-Orelli the following statements 

 are made : The female of Chciinatobia bniniala lays 15Ct eggs on an 

 average; in the forests, oviposition takes place preferably on those 

 lower portions of the trunks that are covered with rough bark. [The 

 German abstract suggests that the difference between forest and 

 orchard conditions may account for the contradiction between this 

 observation and Schneider-Orelli's statement respecting oviposition 

 in the crowns of the trees.] In the forests large numbers of both 

 sexes were seen on the ground and pairing took place there. 



Various .species of H>/bernia, especially H. defoliaria and H. auran- 

 tiaria, also oviposit in the forest, preferably on the lower parts of the 

 trunks. In Westphalia ('. brumafa usually appears late in October or 

 early in November and flies until mid-December. It always pupates 

 in the ground, 



Sedlaczek (W.). Neuere Forschungen uber Borkenkafer. [Recent 



Investigations on Bark-beetles. J — Zeitschr. f. Pfianzenkrankheiten, 

 Stuttgart, xxvii, no. 4, 15th August 1917, pp. 212-213. (Abstract 

 from Zentralblattf. das Gesamte Forstwesen, xli, 1915, pp. 463-472.) 



Sufficient labour is not always available to remove without delay 

 trees that are dying as a result of bark-beetle infestation and the young 

 beetles have time to emerge and migrate to other trees. To prevent 

 this, suitable trap-trees should be arranged in an isolating belt around 

 the infested area. 



Tredl (R.). Aus dem Leben des Birkenspiintkafers, Scolyius ratze- 

 burgi, Jans. {Eccoptogaster destructor, Ratz.) [Notes on the Life- 

 Historv of the Birch Beetle, Scolytus ratzeburgi.] — Zeitschr. f. 

 Pfianzenkrankheiten, Stuttgart, xxvii, no. 4, 15th August 1917, 

 p. 213. (Abstract from Entomolog. Blatter, xi, 1915, pp. 97-102 

 & 146-154.) 



Throughout Europe Scolytus ratzeburgi, Jans., has one annual 

 generation and always hibernates in the larv^al stage. In X. Italy 

 and other southern regions the flight period begins about 20th May, 

 in Germany between 1st and 15th June. The flight lasts from three 

 to five weeks according to the weather. The young beetles breed 



