520 



MuLLOT (G). Traitement de la Cochylis et de TEud^mis, au Chateau 

 de Pech, en 1921. — Progres Agric. c^ Vitic, Montpellier, Ixxvi, 

 no. 35, 28th August 1921, pp. 207-208. 



The author, who claims to have had considerable success with 

 remedial measures against the vine moths, Clysia amhiguella and 

 Polychrosis botrana, records the exact procedure adopted in his own 

 vineyard in 1921. As the more vigorous vines are more severely 

 attacked, he suggests that it is essential to avoid the use of purely 

 nitrogenous manures, and to replace them with mixed fertilisers 

 containing phosphoric acid, potassium, and onl}^ a little nitrogen. 

 Besides other measures, such as hot-water applications, the removal 

 of supei"fluous leaves, etc., three copious sulphur treatments were 

 given. In one area, failing the necessary time for hot-water treatment, 

 the vines were kept covered with sulphur throughout July, and showed 

 little trace of C. amhiguella in mid-August. The author is convinced 

 that sulphur is superior to lime as a remedy against the larvae on the 

 fruit. 



SouRSAC (L.). Les Parasites viticoles et le Pyrethre. — La Vie Agric. 

 & Rur., Paris, xix, no. 35, 27th August 1921, p. 139, 1 fig. 



The known remedies against the vine moths, Clysia amhiguella and 

 Polychrosis botrana, are briefly reviewed, and it is pointed out that it is 

 most important to apply these at the right moment and with the greatest 

 thoroughness. The value of pyrethrum in this connection is dis- 

 cussed, and the desirability of obtaining this product fresh and pure is 

 emphasised. The usual method has been to buy it at a high figure, 

 and frequently in an adulterated or stale condition, but it is quite easy 

 to cultivate. It should be sown in a nursery in March or August, and 

 lightly covered with fine earth. When planting out in spring for the 

 August seedlings, or in September for the March ones, it is unnecessary 

 to replace any other crop, as the pyrethrum can conveniently be planted 

 at intervals of about 20 inches, at the borders of fields or in vine3'ards, 

 where it will be a good substitute for self-sown weeds. 



Wester (P. J.). The Mango. — Philippine Bur. Agric, Manila, 

 Bull. 18, 2nd revd. edn., 1920, 70 pp., 17 plates, 9 figs. [Received 

 31st August 1921.] 



This bulletin dealing with the culti^•ation and uses of the mango 

 closes with an account of the insects injurious to the plant in various 

 parts of the world, with a list of the remedies advocated for their 

 destruction. 



The principal and, as far as is known at present, the only serious 

 pests of the mango in the Philippines are : two unidentified Lepidoptera ; 

 the leaflioppers, Idiocerus clypealis, Leth., and /. niveosparsus, Leth. ; 

 the Longicorn, Euclea capita, Pasc. ; and the fruit fly, Dacus {Chaeto- 

 dacus) fernigineus, F. 



La Plaga de la Langosta. [The Locust Pest.] — Rev. Inst. Agric. Catalan 

 S. Isidro, Barcelona, Ixx, no. 7, July, 1921, pp. 143-144. 



The spread of locusts in the province of Huesca, in a zone close to the 

 border of Catalonia, has caused the Catalonian authorities to make 

 preparations for checking an outbreak. An appeal is made to all 

 concerned to furnish all information that may assist in this campaign. 



