654 EXPERIMENT STATION RECORD. 



quite as effeftive as liuie-sulpliur wash. The authors recommend that miseihle 

 oils should not he used in weaker solutions than 1 : 10 or lo parts of water. 



Miseihle oils have the advantage of heinj; convenient to prepare and apply 

 i'.nd are suitahle for use in small orchards and individual trees in gardens. 

 They are, however, altogether too expensive for use on a conunercial scale. In 

 some instances, the miseihle oils give such unsatisfactory results that the fruit 

 grower must make additional summer and fall applications in order to eradicate 

 the scale. 



Miscible oil sprays, F. II. Hall (Nciv York State Sfa. Bid. 2S1. ixtp. cd., pp. 

 7, pg. 1). — A hrief sunnnary of Bulletin 281 of this station noted ahove. 



Patent washes for San Jose scale, C. E. Craig (T'«. Crop Pent Com. Circ. 2, 

 n. ser., pp. 11). — A number of proprietary lime-sulphur nuxtures and miseihle 

 oils were tested in comparison with lime-sulphur wash. The last-named insecti- 

 cide proved to. be the cheapest and most effective for orchard work. Some of 

 the washes are convenient for use in a small home garden, but are too expensive 

 as com])ared witli lime-suliilnir wash for general orchard work. 



Lime-sulphur wash studies, 1904-1906, J. L. Phillips (Va. Crop t'cst Com. 

 Circ. 1. II. sc/-.. pp. 23). — A chemical study was made of various lime-sulphur 

 mixtures prepared in different ways or from different' formulas. 



The author concludes as a. result of this study that practically all of the sul- 

 phur is dissolved by vigorous cooking for 40 minutes and that the yellow color 

 of the wash is due to the mechanical mixture of the liquid and sediment. If 

 cooking be prolonged a somewhat larger per cent of lime combines with tlie 

 sulphur, hut this is of little practical importance. If the wash is cooked in 

 concentrated form some sulphur is lost by volatilization. The presence of mag- 

 nesia or other impurities in the lime may also eause a considerable loss of 

 sulphur. 



The codling moth, C. Burner (Dciit. Landic. Fressc, 34 {1901), No. 3, pp. 17, 

 18. fijis. 6). — In Germany the codling moth goes through only one generation 

 per year. A number of natural enemies of the pest are known, but spraying 

 and handing of trees are considered necessary. 



A new cabbage-eating larva, G. H. Carpenter {Jour. Econ. Biol., 1 {1906), 

 Xo. '/. pp. l')2-l')i). pi. 1. flu. 1). — The common beetle J'sj/lliodcs chrj/soccphala 

 was observed boring in .voung cabbage plants in the larval condition. The 

 infested plants were destro.ved, and in this way much injiu'y was done, since 

 a considerable percentage of the plants was attacked. The habit of feeding 

 ui)on cabbage plants appears to be newly acquired. 



A new enemy of the raspberry, P. Marchal and J. Vercier {Bui. Mens. Off. 

 Rcii.sci!/. Agr. [I'ari.^]. 5 (l!)0(i). Xo. 12. pp. lI,9J,-lJf99, flgs. 4)-— The authors 

 report serious injury to raspberries from the attacks of Agrilus clirysoderes 

 r(f'?)/co/«. Infested canes show fusiform swellings resembling galls at various 

 points. The larvae of the beetles live in these swellings. In combating this 

 pest it is recommended that all infested canes should be cut and destroyed in 

 winter and that the raspberry patch should again be examined for the presence 

 of the pest in May. 



The life history of a cochlidian moth (Adoneta bicaudata), II. G. Dyar 

 (Biological Studies hy the Pupils of William Thompson Sedgicick. Boston: 

 June. 190(!. III). 11-19, pi. 1). — The author has given ccmsiderable attention to 

 the life history of species of this group and describes Adoneta hieoiidata h\ 

 its various stages, together with notes on its i)eculiar life history. 



A winter spraying of fruit trees, W. E. Collinge {Univ. Birmingham. Dept. 

 lU-on. Zool. Circ. 2, pp. 2). — In experiments in controlling the plant lice on apple 



