444 



Reports on the State of the Crops in each Province of Spain. — Bol. 

 Agric. Tecnica y Ecommica, Madrid, x, no. 114, June 1918, 

 pp. 510-532. [Received 16th August 1918.] 



In the province of Gerona arsenical sprays have been used against 

 Cohspidema atrum infesting lucerne. In Guadalaj ara the Chrysomelid, 

 Haltica ampelophaga, has injured vines, and apples have been damaged 

 by Hyponomenta malinelhis. In Huelva in the hohn-oak forests an 

 area of about 24,000 acres has been infested by Tortrix viridana. 

 Aelia rostrata is present on wheat, though the damage is not expected 

 to be serious. This pest is also reported from Huesca. In Saragossa 

 early-sown fields have suffered from the attack of Haltica. 



LoBO (B.). A Lagarta rosea da Gelechia gossypiella. [The Pink 

 Bollworm, Pectinophora gossypiella.] — Rio de Janeiro, 1918, 

 192 pp., 7 figs., 3 maps. [Received 15th August 1918. j 



This is a report of a journey to Egypt undertaken in 1917 by direction 

 of the Brazilian Ministry of Agriculture in order to study Pectinophora 

 gossypielki and the measures adopted against it, with a view to com- 

 bating it in Brazil, where it has appeared in recent years. Supple- 

 ments to this report include the Egyptian regulations and a plan of 

 work to be adopted in Brazil. This plan was drawn up by a commission, 

 including the author, on the latter's return from Egypt and is to a 

 great extent based on the measures practised there. The need for 

 developing railway and road communication in the cotton-growing 

 regions is urged, as ready access to all parts is a preliminary condition 

 if combative measures are to be carried out. 



ZiMMEEMANN (H.). Lebensweise und Bekampfung der Erdraupe 

 (Agrotis segetum, Schiff.). [The Life-History of Euxoa segetum 

 and Methods for combating this Pest.] — Fuhling^s Landivirtschftl. 

 Zeitung, Stuttgart, Ixvii, no. 7-8, 1st— 15th April 1918, pp. 130-U8. 



This is a record of observations made during many years on Eiixoa 

 segetum in Mecklenburg, where the outbreak of this moth in 1917 

 was exceedingly severe. The various stages of the cutworm are briefly 

 described. Usually the larvae in late autumn go deeper underground 

 and overwinter there, but cases of pupation occasionally occur in 

 the same year and these pupae overwinter below ground. The over- 

 wintered larvae appear in the following spring and feed before pupating, 

 but the damage they do at this time is negligible. The feeding-period 

 and plants attacked vary in different years. The larvae can resist 

 low temperatures, and one individual was seen crawling over snow. 

 Up to the present distinct generations have not been noticed in 

 Mecklenburg in the same year, but larvae in varying stages of develop- 

 ment occur contemporaneously. In 1917 for instance, larvae ranging 

 from 2 to 30 mm. in size were seen during the chief feeding-period, 

 beginning about 20th July and ending early in August. This variation 

 may be due to unequal hatching and growth. In some cases premature 

 mortality was caused in August by a bacterial disease similar to the 

 fiacherie of the silkworm, but experiments with infected silkworms 

 negatived the hope of utihsing this germ as a check, as the disease 

 among the cutworms ceased with the advent of cooler weather. 



In 1917 there was a remarkable increase of E. segetum in Mecklenburg, 

 many districts being infested for the first time, and considerable 



