472 



BoNGiNi (V). n Braco peloso degli Alberi da Frutto. Farfalla 

 del Ventre bruno (Euproctis chrysorrJwea, L.). [The hairy Fruit- 

 tree Caterpillar of the Brown-tail Moth, Nygmia phaeorrhoca.] 

 — R. Osservatorio Fitopatologia, Turin, Foglio d'lstruzione 4, 

 1920, 4 pp., 1 fig. [Received 2nd August 1921.] 



Pears and apples are the fruit-trees that suffer most from Nygmia 

 phaeorrhoea in northern Italy. In central Italy cherries and plums 

 are chiefly attacked. The oak, chestnut and hazel are the forest trees 

 most often infested. The usual preventive and remedial measures 

 against this moth are mentioned. 



ScAGNOLARi (A.). La Tignola, Ragna o Ruga del Melo {Hyponomeuta 

 malinellus, ZelL). [The Apple Moth, H. malindlus, ZelL] — 

 R. Osservatorio Fitopatologia, Turin, Foglio dTstruzione 7, 1920, 

 4 pp., 1 fig. [Received 2nd August 1921.] 



In these notes on the life-history and control of Hyponomeuta 

 malinellus, Z., Ageniaspis fiiscicollis, Dalm., is mentioned as parasitising 

 large numbers of this moth. 



ScAGNOLARi (A.). Aiitonomo Punteruolo del Melo [Anthonomus 

 pomorum, L.). [The Apple Borer, .4. pomorum.] — R. Osservatorio 

 Fitopatologia, Turin, Foglio dTstruzione 9, 1920, 4 pp., 1 fig. 

 [Received 2nd August 1921.] 



The life-history and control of Anthonomus pomorum, L., are briefly 

 described. Stress is laid on the necessity for supplementing winter 

 treatment by spraying the flower-buds and later on by collecting those 

 that become infested. Hymenopterous parasites, including Pimpla 

 graminellae, Encyrtus flavomaculatus, Bracon variator and Microgaster 

 impurus, are a very important factor in checking this weevil. 



Ghirlanda (C). II Bruco verde del Cavoli {Pieris hrassicae, L.). [The 

 Cabbage Butterfly, P. hrassicae.] — R. Osservatorio Fitopatologia, 

 Turin, Foglio dTstruzione 11, 1921, 4 pp., 1 fig. 



This leaflet deals with the bionomics and control of Pieris hrassicae. 

 In northern Italy there are two annual generations of this butterfly, 

 and four in the south. 



BoNGiNi (V.). TJn Divoratore delle Foglie dei Pioppi [Mclasoma [Lina, 

 Chrysomela) popiili). [A Devourer of Poplar Leaves, M. populi.] — 

 R. Osservatorio Fitopatologia, Turin, Foglio dTstruzione 13, 1921, 

 4 pp., 1 fig. 



A short account is given of the injury done to the leaves of poplars 

 and willows by a Chrysomelid beetle, Melasoma poptili, L., especially 

 in spring. Heaps of dead leaves or other vegetable debris may be 

 used as traps in winter, and any insects that have escaped the traps 

 may be collected in spring. The foHage ma}^ also be sprayed with a 

 1 per cent, solution of lead arsenate or with a 2 per cent, solution 

 of tobacco extract. A Tachinid fly, Exorista duhia, and a Chalcid, 

 Ptcromalus sieholdi, are among the natural enemies that check this 

 pest. 



