ENTOMOLOGY. 377 



it is ])r()bal)le that 4 or n applications should be made during the season, the last not 

 earlier than August 15. As the foliage of the cranberry is very smooth and glossy, 

 it has been found desirable to add to the ordinary formula for Bordeaux mixture 5 

 lbs. resin, 1 11). potash, 1 pt. fish oil, and 5 gal. water. 



A bacterial disease of grapes, A. Zschokke ( Weliihan, a. Weinhcmdel, 20 {190J), 

 Xo. 29, p. 308; ahn. in. But. CenthL, 93 {1003), No. 30, p- .S',9).— The author reports 

 observing upon grape stock small irregular dark-green or brownish spots, about 1 mm. 

 in d'ameter. Later these became moist and slimy. An examination showed the 

 presence of 2 species of bacteria, which were separated and characterized. From the 

 appeai-ance of the disease the author believes that this is not identical with the 

 so-called brunissure, or California blight disease. 



A new disease of mountain ash, A . von Jaczewski {Ann. Mycol., 1 {1903), Ni>. ], 

 pp. 29, 30; ahs. in Bot. Centbl., 92 {1903), No. 23, p. 543).— A report is given of the 

 presence on the leaves of Sorlms aucuparia, of grayish-white round spots with con- 

 centric brown layers, which the author claims is due to a species of Leptosi^hseria, to 

 which he has given the name L. sorhi. 



Bacterial spot of carnations, A. F. Woods {Science, n. ser., 18 {1903), No. 4G0, 

 })p. 537, 538). — A report is given of a new disease of carnations which has been under 

 examination, specimens having been received from Pennsylvania and the District of 

 Columbia. In the earlier stages the disease resembles stigmonose or insect puncture 

 (E. S. R., 12, p. 460), but the small spots are usually surrounded by a narrow water- 

 soaked area, while the center of the spot is usually light brown. As the spots grow 

 larger they resemble the ordinary carnation spot. The spots increase in size more 

 rapidly in soft-leaved varieties, which soon collapse and dry, leaving a brown sunken 

 area. 



Examination showed that in all stages the spots are filled with bacteria which 

 have been isolated, cultivated on various media, and used in inoculation experi- 

 ments, showing that the bacteria are the cause of the disease. They are quite different 

 from the form described as the cause of bacteriosis of carnations (E. S. R., 8, p. 235). 

 The bacteria seemed to gain entrance through punctures, injuries of any kind, or 

 possibly through the stomata. When the disease has not progressed very far it may 

 be checked by cleaning the plants of all diseased leaves and stems and spraying with 

 a solution of 1 part formalin to 500 j^arts water. The disease is to be the subject of 

 further investigation, which will be duly reported. 



Sulphate of iron for chlorosis in trees and plants, H. M. Steingfellow 

 {Texas Faria and Ranch, 22 {1903), No. 38, p. 10). — The author was successful in 

 curing chlorosis of vines and fruit trees by the use of sulphate of iron dissolved in 

 water and sprinkled about the roots. He believes that 5 to 10 lbs. would cure a 

 large bearing tree. 



ENTOMOLOGY. 



Report of the entomologist, F. Sherman, Jr. {Rpt. Comr. Agr. Nortli Carolina, 

 1902, pp. 34-39). — Brief notes are given on the methods best adaj^ted for destroying 

 the common injurious insects, together with a summary of the work of the entomolo- 

 gist for the past 2 years in the inspection of nurseries. 



Injurious insects. Spraying for insects and diseases, F. Sherman, Jr. 

 {Bui. North Carolina State Bd. Agr., 24 {1903), No. 6, pp. 39, figs, ^i).— Short 

 descriptive, biological, and economic notes on harlequin cabbage bug, cabbage 

 plusia, cabbage butterfly, white grubs, Hessian fly, tobacco flea-beetle, black grain 

 weevil, corn billbug, bagworm, elm-leaf beetle, San Jos6 scale, scurfy scale, oyster- 

 shell bark-louse, woolly aphis, codling moth, peach-tree borer, blackberry-cane 

 borer, and plum curculio. Formulas are also given for the preparation of approved 

 insecticides and fungicides. 



