882 EXPERIMENT STATION RECORD. 



descriptive and ecoiioiiiic notes are given on this si)ecifs, whicli is said hy the author 

 to lie ret\'ral>le to the genus Ceratophyllus. 



Plant-house Aleurodes, L. K. Caky {Maine Sta. Bui. 96, pp. 125-144, fi(J>^- U).— 

 A deseription is presented <>f the emhryonic stages of this insect, and notes are given 

 on the anatomy of the achilt f(trni. Hydrocyanic-acid gas was found to be asuccess- 

 ful remedy for comliating this siK'cies in greenhouses. 



The red spider, A. Tri>i,(iKE.v {Knt. Tidnkr., 24 {190S), No. 4, pp. ^46-^49).— The 

 hal)its and life historv of this pest are hriefly described, and notes are given on the 

 use of various insecticides in controlling it. These insecticides include suli)hur, 

 j)ota.><sium sulphid, kerosene emulsion, lysol, antinonnin, and decoction of tomato 

 leaves. 



Studies of the habits and development of Neocerata rhodophaga, F. M. 

 AVkhstek {Bui. llllm^ State Lah. Nat. Hid., 7 {1904), Art. .?, pp. lh-"2r,, pi. 2).— This 

 insect was reported as injuring roses under glass in the vicinity of Chicago. The 

 l>est appears to prefer the Meteor rose, but attacks also other varieties, especially 

 Wooton, liride, Madame Chatenay, etc. No injury is done in rose houses between 

 Novend)er and May. The habits of the insect are not well understood. It seems not 

 to attack native species of wild roses, and is therefore considered not to be a native 

 species of insect. The author is not certain whether the name as ])rovisionally 

 adopted for the species Avill prove to be the correct one. 



Spraying" apples and pears, F. Sherman, Jr. {North Carolina Dept. Agr., Ent. 

 C'irr. a, pp. 7) . — As the result of observation of orchards in North Carolina and cor- 

 respondence with orchardists, it is concluded that careful and persistent spraying of 

 apple and pear trees with Bordeaux mixture and Paris green furnishes the most 

 effective means of restoring the orchards of the State to a productive condition. 

 Notes are given on the insect pests and fungus diseases which may be controlled ])y 

 these remedies, and also on the manner of prejiaration and methods and time of 

 apjilication of the remedies. 



A supposed remedy for fruit-tree pests: Gunpo^wder, sulphur, niter, sul- 

 phate of iron, mixed and inserted into the tree, C. T. Musson {Agr. Gaz. New 

 South Walex, 14 {190S), No. 12, pp. 1206, ii'07).— These substances were mixed in equal 

 quantities, and an ounce of the mixture was inserted in holes | in. in diameter bored 

 into trees at a height of 2 ft. from the ground. An application was made upon wattle 

 and plum trees. The holes were blocked with clay. After a period of 6 months 

 there was no evidence that this remedy had had any effect upon the insect pests of 

 these trees. 



The nurseries inspection and quarantine bill, C. P. Lounsbury {Agr. .Tour. 

 Cape dood Hope, 24 {1904), No. 2, pp. 1S8-195). — The author gives the text of a quar- 

 antine bill which has l)een under consideration for a number of years. It is believed 

 that the bill will be introduced into the colonial parliament during the coming season, 

 and on this account the author urges the desirability of such a law in order to protect 

 the nurserymen and fruit growers of South Africa. 



The Columbacs fly, L. von Aigner-Abafi {Allg. Ztschr. Ent., 8 {1903), Nos. 5, 

 ■pp. 93-96; 6-7, pp. 124-127) .—The habits and life history of this species of fly are 

 described in detail. The fly belongs to the family Tipulidje and is generally dis- 

 tribute<l in southeastern Europe. The females lay from 5,000 to 10,000 minute eggs 

 in running water. The larv» require from 6 to 8 weeks for development. 



The adult insects appear in swarms and attack cattle, horses, sheep, and hogs, 

 which animals are frequently killed l)y the flies. The losses of live stock are especially 

 serious in parts of Servia and Hungary. In animals which are not killed outright 

 by the attacks of the flies a fever and other abnormal conditions are produced. In 

 protecting animals against this pest the author recommends that animals should 

 be allowed to graze only between sunset and sunrise, and that smudges or substances 

 giving off disagreeable odors be maintained in connection with the stables. Ani- 



