262 EXPERIMENT STATION EECORD. 



B. (1 : 100) , and flour paste (4 : 100) . To get the best results it is essential that 

 the vines should be thoroughly sprayed. Stripping the vines and burning the 

 leaves is an excellent metisure, but should not be entirely lelied upon as a com- 

 plete control. When the infestation is severe early in the season and the 

 mites are above the point of stripping, spraying operatlcns should be com- 

 menced as soon as the vines are stripped. The infested area must be thor- 

 oughly and rapidly covered and must be sprayed a second time, 7 or 10 days 

 later. 



"Banding with tree tanglefoot will check migrations and is recommended 

 where the hopyards are infested by food plants of the red spider. Two later 

 applications may be necessary if the mites again appear in Injurious numbers." 

 The red spider on the hop vine may be economically controlled if these measures 

 are carefully carried out. 



A bibliography of 27 titles is appended. 



Some natural enemies of spiders and naites, H. J. Quatle (Jour. Econ. Ent., 

 6 {1913), No. 1, pp. 85-88). — The data here presented are based upon the In- 

 vestigations previously noted (E. S. R., 28, p. 457). 



The effects of spraying, H. S. Fawcett (Florida Sta. Rpt. 1912, pp. LXXIII- 

 LXXVII). — Spraying experiments conducted in the spring of 1911 with Bor- 

 deaux mixture 3: 3: 50; commercial lime-sulphur (1 gal. to 25 gal. water) ; and 

 Yothers' Formula FV, consisting of 3 gal. Junior red engine oil and 2 gal, whale 

 oil soap to 200 gal. of water, are reported in tabular form. Three localities 

 were chosen and one plat was sprayed at each locality in May, July, and 

 September. 



" Counts of the numbers of scale insects per fruit and per leaf, and of the 

 white fly per leaf were made, one about September 1, a second on November 1, 

 and a third about December 1, It was found that Bordeaux mixture caused an 

 overwhelming increase of scale insects. The use of commercial lime-sulphur, 

 in the flrst 2 counts, somewhat diminished the number of scale insects; but 

 later, in the third count, caused a slight increase; while Yothers' Formula IV 

 cut them down to practically nothing. The evident reason for the increase of 

 scale insects with the use of Bordeaux is that Bordeaux mixture kills the fungi 

 that are parasitic on the insects, and thus allows them to increase. This in- 

 crease was so great as to cause much injury to the tree. In one case the leaves 

 fell off at the end of the season." 



A tick the probable carrier of verruga, C. H. T, Townsend (Inca Chron., 

 5 (1913), No. 3, pp. lS-18). — The author discusses the nature of this disease of 

 man which occurs in parts of Peru, presenting the evidence vt'hich leads him 

 to conclude that it must be transmitted by ticks. 



The possible and probable etiology and transmission of verruga fever, 



C. H. T. Townsend (Jour. Econ. Ent., 6 (1913), No. 2, pp. 211-225).— A some- 

 what more detailed discussion of the subject than is given in the paper noted 

 above. 



FOODS— HUMAN NUTRITION. 



Minnesota wheat investigations, — Series 1, milling, baking, and chemical 

 tests, crop of 1911, C. H. Bailey (Minnesota Sta. Bui 131, pp. J,2, figs. 6).—- 

 Spring sown Bluestem, Fife, and Velvet Chaff or bearded spring wheat, are the 

 varieties principally grown in Minnesota. 



According to the author's summary of the investigations reiwrted, the spring 

 wheat crop of 1911 was of rather poor quality owing to adverse weather conditions 

 and to rust. The samples studied showed wide ranges in composition and mill- 

 ing quality. The variations in the composition of the hard spring wheats were 



