ENTOMOLOGY. 763 



Carnation stem rot, F. W. Cako and G. E. Adams (Rhode Island Sta. Rpt. 1901, 

 pp. 2S3,-2S4)- — In (,-i)ntimiation of the experiments hitherto reported (E. S. R., 12, 

 p. 966), an attempt was made to determine the effect of stal)le manure and chemical 

 fertilizers in potting soil on the carnation stem rot. Cuttings were started in clean 

 sand, after which half were potted in soil which received no stable manure but 

 which was supplied with chemical plant food, and the other half was started in 

 ordinary potting soil. When planted out, the same precautions were taken with the 

 soil. At the end of the season no stem rot developed in either lot. The indications 

 seemed to show that as in the previous year the use of stable manure did not produce 

 greater injury than chemical fertilizers. 



Rose mildew, E. O. Orpet {Amer. Gard., 22 {1901), No. 358, ]ip. 745, 746).— Ivory 

 soap is said by the author to be a specific for rose mildew. A bar of the soap is dis- 

 solved in a pail of boiling water and diluted to 6 pailfuls. The mixture maybe used 

 with one-third less water and be safe, but it is stated that it is a preventive at the 

 above strength if sprayed on with a fine spray with force. 



Mildews, C. W. Dodd {Gard. Chron., 3.ser.,30{1901),No. 77i, 2>.;?5^).— Brief pop- 

 ular descriptions are given of mildews which attack a number of ornamental plants. 

 Among those described are the mildews of roses, Michaelmas daisies, irises, hybrid 

 montbretias, and hybrid saxifrages. 



An atlas of plant diseases, G. Delacroix {Atlas de pathologie vegetale. Paris: 

 J. Lechevalier, 1901, pis. 59). — Illustrations are given of a large number of diseases of 

 plants caused by fungi, insects, and other parasites, as well as a number of common 

 abnormal growths. 



ENTOMOLOGY. 



Report of the entomologist, J. B. Smith {Nev) Jersey Stas. Rpf. 1900, pp. 479-572, 

 figs. 10). — During the season of 1900 there were droughts accompanied with high 

 temperature and resulting in an increase in the numbers of Hessian fly and Angou- 

 mois grain moth and a decrease in the numbers of plant lice. It is reported that the 

 San Jose scale does not develop so rapidly or breed so long in the northern as in the 

 southern counties of New Jersey. It appears, however, that there are no local con- 

 ditions in the State which are adverse to the development of this species. ]Mo.st nur- 

 serymen have constructed fumigating houses of boxes for the treatment of all their 

 stock. The sinuate pear borer is reported from a number of localities. In nurseries 

 trees showing infestation by this insect are ordered destroyed. Peach thrips pre- 

 vailed to an injurious extent in the latter part of the season and destroyed the leaders 

 of many trees. Kerosene emulsion was applied against this insect in 2 nurseries with 

 practical results. Pear psylla occurred in a number of localities, but appears to have 

 been effectively checked in orchards where crude petroleum had been applied dur- 

 ing the i)revious winter. The chief insects of plums during the season were plum 

 plant lice and the curculio. Quince curculio is reported as having been unusually 

 injurious. An account of its life history is presented. There is no time during the 

 life cycle of the insect when it may be successfully reached Ijy insecticides, and the 

 method of combating it which was recommended by the author consists in jarring 

 the trees daily during the period when the beetles are found in the orchard. Eggs 

 of the apple plant louse were noticed in great numbers in the sprinir, but the insects 

 did not develop to the usual extent. In some localities the species had almost dis- 

 api)eared by the middle of May. Injuries to strawberries are reported from the 

 attacks of ground beetles. In one locality this pest occurred in such numbers as to 

 becomeannoying in houses. On currants, attacks of plant lice, currant worms, span- 

 worms, and the San Jose scale are rei)orted. Pea louse cau.sed consideral)le damage 

 in several parts of the State. Red clover appears to be the normal food of the insect, 



