- 448 - 
Sprays of soft soap (1:400), or 3 percent tobacco extract 
(1:10) killed all the eggs of the above moth, but are too expensive for 
general use. 
JEPSON, F. P., ET AL. (1933) 
19.30. REPORTS Oil INSECT PESTS IK CEYLON DURING 1929. Ceylon Dept. Agr. 
Tech. Rept. 1929, 25 pp. [Colombo]. [Abstract in Rev. Appl. Snt. (A) 
19: 137-138. 1931.] 
Sodium silicofluoride and tobacco extract were not effective 
against nettle grubs limacodids on tea plants. — 
SONAR, J. : - . (1934) 
1927. STUDIES ON THE INSECT PESTS OF THE TEA PLAIT T. PART II. Formosa 
Dept. Agr. Res. Inst. Rept. No. 29, 132 pp., illus. [In Japanese. 
Abstract in Rev. Appl. Ent. (a) 15: 482-483. 1928.] 
Spraying with derris and soap, or nicotine sulphate and soap 
proved very effective against the lymantriids which infest the tea plant 
in Formosa. 
KEMNER, N. A. (1935) 
1926. LYONETIA CLERCKSLLA L.. ITS BIOLOGY AND CONTROL. Meddel . Central 
anst. Forsdksv. Jordbruksomradet [Sweden] No. 301 (Ent. Avdel. No. 4 
59 pp., illus- [In Swedish. Abstract in Rev. Appl. Ent. (A) 14: 512. 
1926.] 
Nicotine sprays are of value during the vegetative period. A 
solution of 1 per mille nicotine kills the larvae in their mines and the 
pupae in their webs and does not seem to harm the parasites. 
WORTHLEY, H. N. (1936) 
1923. THE CONTROL OF THE SQUASH VINE BORER IN MASSACHUSETTS. Mass. Agi 
Expt. Sta. Bull. 218, pp. 70-80, illus. [Abstract in Rev. Appl. Snt. 
(A) 12: 244. 1924.] 
Experiments show that nicotine sulphate at 1 to 100 kills over 
97 percent of the eggs of this moth ( Melittia satyriniformis Hb.) 
end at 1 to 250 kills over 90 percentT - 
FRIEND, R. B. (1937) 
1931. THE SQUASH VINE 30RER, MELITTIA SATYR INIFORMIS HUBNER. Conn. 
Agr. Expt. Sta. Bull. 328, pp. 587-608, illus. [Abstract in Rev. 
Appl. Ent. (A) 19: 493-! 94. 1931.] 
One of the insecticides recommended for the control of the above 
insect is nicotine sulphate (1:100) with 0.5 percent soap. 
