33] Krankheiten und Schädlinge. 1009 



424. (Ridley.) Trees attacked by Termes Gestroi. (Agric. Bull. Straits 

 and Fed. Malay. St., VIIT [1909], p. 563.) 



Liste von 20 Baumarten. 



42"). Togwood, W. Termes Gestroi. (Agric. Bull. Straits and Fed. Malay. 

 St., VIII [1909], p. 97-104.) 



426. Vernieting van witte mieren. (De Indische Mercuur, XXXII 

 |1909], p. 528.) 



427. (Main, F.) La Destruction des Fourmis Manches: (Journal 

 d-Agricult. tropic, IX [1909], p. 350.) 



428. Natural Enemies of Scale Insects. (Agric. News, VIII [1909], 

 p. 122.) 



429. Sut'k, Fr. Zur Termitenbekämpfung. (Tropenpflanzer, XIII 

 [1909], p. 290-291.) 



Beschreibung eines neuen Apparates, der giftige Gase in den Boden 

 leitet, zur Zerstörung der Wchnstätten der Tiere. 



430. Zur Termitenbekämpfung. (Der Ostafrik. Pflanzer, I [1909], 

 p. 51 — 52.) 



Beschreibung des Suckschen Termitensuchers und der darauffolgenden 

 Ausräuchermethode. 



431. Notes on termites. (Agric. Journ. Transvaal, VII [1909], No. 29.) 

 Schutzmittel für Hölzer, unter denen Arsenik sich am besten bewährte. 



432. To destroy white Ants. (Suppl. to Tropic. Agric. and Magazine, 

 XXXIII [1909], p. 384.) 



433. De Kruyff, E. La destruction des rats par le sulfure de 

 carbone. (Journal d'Agricult. tropic, IX [1909], p. 218.) 



Eingiessen in die bewohnten Gänge und entzünden (!). 

 434 Boelter, W. R. The Rat Problem. (London [1909], J. Bale 

 and Danielsson, 166 pp., 75 fig.) 



435. Beal, F. E. L. The relations between birds and insects. 

 (Yearbook Dep. Agric. Washington [1909].) 



436. Theory of the Parasitic Control of Insect Pests. (Tropic. 

 Agric. and Magazine, XXXII [1909], p. 53—55.) 



Nach O. W. Woodworth in Science, XXVHI [1908], No. 712. 



437. Insect pests and their foes. (Journ. Dep. Agric. South Aus-tralia, 

 XII [1909], No. 7.) 



Behandelt die Verhältnisse in Cypern und Ägypten. 



438. Froggatt, W. W. Notes on Parasites or Insects that have 

 been introducted from foreign Countries to check or exterminate 

 injurious Insects. (Tropic. Agric. and Magazine, XXXIII [1909], p. 140 

 bis 142.) 



Aus dem Offic. Rept. on Fruit, Fly and other Pests, 1907—1908. 



439. Froggatt, W. W. Notes on the Value of intro duced Parasites 

 or beneficial Insects. (Tropic. Agric. and Magazine, XXXII [1909], p. 547 

 bis 549.) 



440. Froggatt, W. W. Notes on the value of introduced para- 

 sites or beneficial insects. (West Indian Bull., IX [1909], p. 262—264.) 



441. Beneficial parasites. (Journ. Dep. Agric. Western Australia, 

 XVIII [1909], No. 5.) 



Feinde schädlicher Insekten. 



Botanischer Jahresbericht XXXV11 (1909) 2. Abt. [Gedruckt 21. 9. 12.) 64 



