588 



rate of 40 grammes per cu. metre of space. On 29th December the 

 Mexican Minister of Agriculture was informed that P. gossypiella 

 had spread beyond the quarantine area in the Laguna district, and 

 either a three-year prohibition of planting or the extension of the 

 quarantine area was advised. In January and February inspectors 

 were appointed to see that the regulations were duly carried out. 

 In consequence of several requests for permission to export seed, 

 lint and cotton cake, the Secretary for Agriculture issued on 25th 

 February 1918 a regulation absolutely forbidding the export of seed, 

 limiting the export of carefully examined lint to districts where cotton 

 is not grown, and permitting the export of cake made from residues 

 from hydraulic seed presses, as no animal life is possible in such residues. 

 In a footnote it is stated that satisfactory results have been obtained 

 in fumigating seed with carbon bisulphide used at the rate of 30-50 

 grammes per cu. metre of space ; the germination of the seed was 

 not affected. 



Priesner (H.). Zur Thysanopteren-Fauna Albaniens. [On the 



Thysanoptera of Albania.] — Sitz.-Ber. Akad. Wissensch. Abt. I, 

 Vienna, cxxviii, 1919, pp. 115-144, 5 figs. (Abstract in Zeitschr. 

 Pflanzenkr., Stuttgart, xxxi, no. 1-2, 1921, p. 64.) 



This paper contains much systematic information and deals with a 

 large number of new species, with notes on several others. 



Priesner (H.). Ein neuer Linwthrips (Halid.) aus Steiermark. 



[A new Limothrips from Styria.] — Ent. Zeitschr., Frankfort-on- 

 Main, xxxiii, no. 9, 1919. (Abstract in Zeitschr. Pflanzenkr., 

 Stuttgart, xxxi, no. 1-2, 1921, p. 64.) 



Limothrips schmutzii, sp. n., from the Graz region, is very similar 

 to L. cerealiiim, Hal., and is also a pest of wheat. 



Feldt ( — ). Vorbeugungsmittel gegen Bohnen-Blattlause und einige 

 andere Erfahrungen mit Acker- und Puffbohnen in Ostpreussen. 



[Preventive Measures against Bean Aphids and some other 

 Experiences with Field and Garden Beans in East Prussia.] — 

 Mitt. Ver. z. Forderung d. Moorkultur i. Deutschen Reiche, xxxvii, 

 1919, pp. 37-40. (Abstract in Zeitschr. Pflanzenkr., Stuttgart, 

 xxxi, no. 1-2, 1921, p. 66.) 



As Aphids [Aphis rttmicis] first appear at the edges of a bean field 

 and then spread towards the side sheltered from the wind, it is necessary 

 to choose exposed situations and to aim at early blossoming. The 

 seed should be submerged in mercuric chloride for two hours and then 

 in water for twenty-four hours. Another measure consists in making 

 the drills run north and south ; drills running east and west yield 

 taller plants, but they are shaded and more protected from wind and 

 the crop is smaller. Carrots, hemp, parsley and coriander repel 

 Aphids. Early potatoes should surround the bean field. 



Dewitz (J.). Die Immunsande. [Sands immune from Phylloxera.] 

 — Landw. Jahrbikher, liii, 1919, pp. 435-484, 1 plate. (Abstract 

 in Zeitschr. Pflanzenkr., Stuttgart, xxxi, no. 1-2, 1921, p. 67.) 



This is a review of the literature dealing with the types of sandy 

 soil that are free from the vine Phylloxera. Such papers have either 

 been fortrotten or are onlv accessible with difiicult\'. 



