346 



KuTiN (A.). Die gelbbeinige Schlupfwespe {Microgaster glomeratus, 

 L.), der Verderber der Kohlraupe, als indirekiter Sctiadling des 

 Weizens. [Microgaster glomeratus, L., the Destroyer of the Cabbage 

 Caterpillars, indirectly injuring Wheat.] — Zei'tschr. f. Pflanzen- 

 krankheiten, Stuttgart, xxvi, no. 8, 15th January 1917, pp. 452- 

 454, 1 fig. [Received 10th June 1920.] 



In the vicinity of Prague wheat has been found to be damaged owing 

 to the presence of cocoons of Apanteles (Microgaster) glomeratus, 

 which deprived the ears of the plants of hght and air, and thus prevented 

 the proper development of grain. As this Braconid is a well-known 

 parasite of Pieris brassicae, L., the host caterpillars had probably 

 crawled up the wheat ears, but what the original food-plant was ha& 

 not yet been ascertained. 



MoLz (E.). Blattlausbekampfung mittels des "Landauretts." [Control 

 of Aphids by means of the " Landaurett."] — Zeitschr. f. 

 Pflanzenkrankheiten, Stuttgart, xxvii, nos. 2-3, 25th April 1917, 

 pp. 107-110, 1 fig. [Received 10th June 1920.] 



The apparatus ah-eady described [R.A.E., A, viii, 276] for the apph- 

 cation of nicotine vapour has been successfully used against Aphids. 

 Enemies of Aphids, such &s Coccinella sejjtemjnmctata and C hilocor us s-p.,. 

 are not injured by this treatment. 



MoLZ (E.). Die Wiesenwanze, Lygus jiratensis, L., ein gefahrlicher 

 Kartoflelschadling, [Lygns ■pratensis, L., a serious Pest of 

 Potatoes.] — Zeitschr. /. Pflanzenkrankheiten, Stuttgart, xxvii, 

 nos. 7-8, 31st January 1918, pp. 337-339, 2 figs. [Received 10th 

 June 1920.] 



Lygus pratensis, L., is recorded as causing serious injury to potatoes 

 at Mehmke. Both adults and nymphs were found on the plants. 

 Jarring the plants so that the insects fall on planks covered with an 

 adhesive substance is suggested as a remedy. The efficacy of arsenical 

 sprays has not yet been tried, but a 3 to 4 per cent, tobacco solution 

 proved useless. 



Bredemann (G.). Beobachtungeu iiber Weinschadlinge in Ober- 

 mesopotamien. [Observations on Vine Pests in Upper Mesopota- 

 mia.] — Zeitschr. f. Pflanzenkrankheiten, Stuttgart, xxix, nos. 5-6.. 

 1919, pp. 166-171, 2 figs. [Received 10th June 1920.] 



Owing to chmatic conditions there are very few serious vine pests in 

 upper Mesopotamia. The noxious insects recorded include the larvae 

 of a Sphingid, Deilejihila livornica, Esp., which appear from the middle 

 of May to the middle of June and attack the leaves and unripe fruit. 

 An autumn generation probably occurs in certain districts. Under 

 laboratory conditions pupation occurred about 11th June on or just 

 under the surface of the ground. The adult moths appeared between 

 28th June and 10th July. Handpicking is rehed upon for the des- 

 truction of this pest. 



