- 416 - 
the latter species. Arsenicals had practically no effect on the 
former species. 
D'ANCCNA, U., and NANNIZZI, A. (1785) 
1934. 3ICLCGICAL OBSERVATIONS OH HYPCNOMEUTA PADELLUS L. Riv. 
Biol. 15 (1): 47-60, illus. [In Italian. Abstract in Rev. Appl. 
Int. (A) 22: 330. 1934.] 
[These moths were controlled "by spraying with lead arsenate and a 
nicotine insecticide. 
TR9UVELC I , 3 . , and T7I LLAUIvLE , 3? . (1786) 
1925. COST A NEtf PRINCIPLE OF ATOMIZING 3Y USE OF HEAT AS A DYNAMIC AND 
ACTIVATING FORCE. (TEPID SPRAYS STJPER-TC3T) . Rev. Path. Veg. et 
Ent. Agr. 12 (l): 44~55, illus. [In French. Abstract in Rev. 
Appl. Int. (A) 13: 489-490. 1925.] 
Using a new principle of heating the spray up to 212° F. as 
it passed through the nozzle, Kyponomeu ta spp. were destroyed in their 
nests, using nicotine soap. sprays, no damage being done to the foliage. 
7he aphids (Aphis r unic is, on E uonymus and My gas cerasi on wild cherry) 
were destroyed by the same spray, though the leaves were curled. 
7. Olive Moths, 1903-1929 
ffATI&RES, G. F. (1737) 
1921. THE OLIVE TREE. Rev. Agr. Afr. Nord. , Algiers 19 (114): 75.2-755 
[In French. Abstract in Rev. Appl. Snt. (A) 10: 33. 1922.] 
The moth Hargarodes unio nalis chiefly attacks young trees and 
grafts. As these are always trees without much leaf surface, nicotine 
sprays are recommended as being as efficacious and not so dangerous as 
lead arsenate . 
GUERCIO, C-. DEL (1738) 
1903. NOTES AND PRACTICAL SUGGESTIONS FOR THE KNOWLEDGE AND COITTROL OF 
ANIMALS INJURIOUS TO CULTIVATED PLANTS AND THEIR FRUITS. Iluove Relaz 
R. Staz. Znz. Agr., Florence 1st Ser., No. 5, 208 pp., illus. [In 
Italian.] 
As a control for the moth Prays oleellus Fabr. on oli\'e trees 
in Italy, plain soap solution nay be modified to better advantage by 
Lng 2 percent soap and 1 percent naphthalene in 100 1. of water, or 
a 3 percent nicotine soap solution (p. 72). 
Against the moth Hyponomeuta malinellus Zoller on apple trees 
a spray consisting of 1 to 1.5 percent of neutralized tobacco extract 
with 2 percent soft soap is used (p. 75). 
