- 422 - 
GB09U& D. J. (1812) 
1923. CMM83aRC[ mr^ffSIGASlCfSS IN PACIFIC COUNTY. T7ash . Agr. Expt. 
Sta. Ann. Rept. 33 (1322-1923), Bull. 180, pp. 73-75. [Abstract in 
Rev. Appl. Ent. (A) 12: 239. 1924.] 
Very good results against the cranberry fireworm ( Rhopobota 
naevana ) were obtained with nicotine sulphate at 1 to 400. At 1 to 
800 it was ineffectual. 
FRANKLIN, H. J. (1813) 
'1928. CAPE COD CRANBERRY INSECTS. Mass. Agr. Expt. Sta. Bull. 239, pp. 
1-67, illus. [Abstract in Biol. Abs. 4 (6): 1825. Entry 19,295. 
1930.] 
Various methods of flooding, coupled with applications of nico- 
tine sulphate and fish-oil soap, are recommended for control of the fir 
worm ( Rhopobota vaccinian a Pack.). Another fireworm (Cacoecia parallel 
Rob.) never important in flooded bogs, is readily controlled by nico- 
tine-soap spray. 
PLANK, H. K. .. (1814) 
1922. TEE BLACKHEAD FIRET70RM OP CRANBERRY ON THE PACIFIC COAST. U. S. 
Dept. Agr. Bull. 1032, 46 pp., illus. [Abstract in Rev. Appl. Ent. 
(A) 10: 597. 1922.'] 
Experiments on a large scale proved the most effective spray to 
be 40-percent nicotine sulphate at 1 to 800 plus 2 lb. fish oil soap 
per 50 gal., using about 300 gal. to the acre. Nicotine sulphate at 
1 to 1,000 gave results almost as good. Three applications of either 
should be made. Nicotine oleate made by mixing 2 1/2 parts of a solu- 
tion containing 40 percent free nicotine with 1 3/4 parts of commercial 
oleic acid using 1 part to 400 parts of water applied 3 times at the 
rate of 300 to 400 gal. per acre was also nearly as effective. Fish- 
oil soap was a much better spreader than glue for cranberry foliage. 
On heavily infested vines a fourth application should be made during 
the first two weeks of July. 
FRAFKLIN, H. J. (1815) 
1933. INJURIOUS AND BENEFICIAL INSECTS AFFECTING THE CRANBERRY. Mass. 
Agr. Expt. Sta. Bull. 293, pp. 21-25. 
It was found that a spray containing 1 l/3 qt. nicotine sulphate 
4 lb. soap, and 100 gal. water killed the larvae of the gypsy moth in 
all stages satisfactorily when used at the rate of 400 gal. per acre. 
The sprays were most effective when applied early in the morning, for 
then the larvae usually work in the tops of the cranberry vines where 
they are easily reached. with a spray (p. 22). 
A nicotine sulphate spray at the end of the cranberry blossoming 
