162 EXPERIMENT STATION RECORD. [Vol. 41 



development of which 28 to 31 days are required. The application of nicotin 

 sulphate, 1 pint to 100 gal. of water with 6 lbs. of soap added, on July 17 ap- 

 parently killed the hugs at once. A weaker solution (3/8 pint to 100 gal.) ap- 

 pears to be insufficient for control. 



The hop snout moth, which so far as known feeds only on the hop, has been 

 found by the author to strip the hop vine of its leaves occasionally, but there 

 has not been a general outbreak during the past five years. The eggs of the 

 first brood are deposited about the middle of May on the underside of the hop 

 leaves and hatch in three weeks. Eggs of the second brood have been found 

 from July 28 to August 11. The larval stage of the first brood averages 25.3 

 days and the pupal stage 13 days. Full-grown larvse of the first brood have 

 been taken from June 17 to July 21, and those of the second brood from August 

 15 to September G. Two tachinid flies (Masiccra rutila and Exorista hy pence) 

 are said to parasitize the larvae. The application of powdered arsenate of lead 

 mixed with the sulphur used for hop mildew, at the rate of 1 : 10, has been effec- 

 tive in its control. 



The fUamented looper, a general feeder widely distributed in the eastern part 

 of this continent, while not of great economic importance at the present time, 

 is increasing in abundance and may become a serious leaf-eating pest of the 

 hop. It is said to have been found on the hop in large numbers near Sanger- 

 field, N. Y. The eggs, which are deposited beneath the bark or in cracks of 

 hop poles the latter part of August, pass the winter, and hatch from the middle 

 of May to the last of the following June. A period of about 10 months is passed 

 in the egg stage, an average of 28.8 days in the larval stage, and 13.5 days in 

 the pupal. Control measurers for the hop snout beetle should hold the fila- 

 mented looper in check. 



The hop aphis, which in some years has caused almost total loss of the hop 

 crop, is brielly reported upon. Control experiments have led to the recommen- 

 dation that nicotin sulphate 1 : 2,000 with soap be applied the last week in June 

 or the first week in July. 



The spider mite occasionally appears in hop yards in New York, but has 

 never caused any serious damage as it has on the Pacific coast. 



A bibliography of 33 titles and a list of 14 references to the literature cited 

 are included. 



The Ohio wheat survey, H. A., Gossabd and T. H. Pakks {Jour. Econ. Ent., 

 12 {1919), No. 1, pp. 58--66).— Substantially noted from another source (E. S. R., 

 39, p. 863). 



Insects in relation to wheat flour and wheat flour substitutes, R. N. Chap- 

 man {Jour. Econ. Ent., 12 {1919), No. 1, pp. 66-70). — Substantially noted from 

 another source (K. S. R., 40, p. 59). 



Some new phases of the entomology of disease, hygiene, and sanitation 

 brought about by the great war, W. D. Pierce {Jour. Econ. Ent., 12 {1919), 

 No. 1, pp. 42-J,7). 



Grasshopper control in Indiana, J.. J. Davis {Indiana Sta. Circ. 88 {1919), 

 pp. 8, figs. 9). — This is a brief popular account of means for grasshopper con- 

 trol based upon cooperative work with the Bureau of Entomology of the U. S. 

 Department of Agriculture. 



The meadow plant bug, H. Osbobn {Maine S^fa. Bill. 216 {1919), pp. 16, pi. 1, 

 figs. 5). — This is an account of Miris dolahratu.^ based upon the more detailed 

 paper by the author previously noted (E. S. R., 40, p. 260). 



Kerosene emulsion v. nicotin solution for combating the potato aphid, 

 W. E. Britton and M. P. Zappe {Jour. Econ. Ent., 12 {1919), No. 1, pp. 71-81).— 

 The authors found that kerosene emulsion, made at the rate of 3 cakes of 

 laundry soap (30 oz.), 4 gal. of kerosene, and 2 gal. of hot water diluted to 



