976 EXPERIMENT STATION RECORD. 



Report on the work of the section for plant protection, 1902-3, C. Brick 

 {litr. Ti'tt. Aht. I'fUmzcmchutz, Ilnmhurci, i;i02-3, pp. 10). — l)nrin<r tlie year under 

 report a mueli larger quantit)' of American fruit was imported thnjugli Ilamlmrg 

 tliau ever before. Notes are given on the varieties of fruit represented in tliese 

 iniiM)rtations and on the extent of infestation with San Jose scale and other insect 

 and fungus diseases. 



More than one-half of the apples imported were lialdwins. A small percentage 

 of apples from all parts of the country were infested with San Jose scale; some speci- 

 mens were also found of Forbes scale, scurfy scale, Putnam scale, and oy.ster-shell 

 bark-louse. Mention is also made of a number of fungus diseases w'hich were found 

 on apples. From Central and South America palms were imported which proved 

 to be infested with a considerable variety of scale insects. Notes are also given on 

 the conditions of nursery stock and plants imported from Japan. 



The crop pest law of Georgia {Georgia Slate lid. Ent. Bid. 10, pp. 10). — A copy 

 is given of the law of Georgia regarding the special inspection of nurseries and 

 nursery stock, the control of insect and fungus diseases, together with the rules and 

 regulations adoi)ted ])y the State Board of Entomology for this jjurpose. 



Common corn insects, J. M. Stedman {3fo. Bid. Missouri Slate Bd. Agr., 3 

 {1904), No. 11, pp. 11-17). — Notes are given on the habits, life history, and means of 

 combating chinch bug, corn-root aphis, cutworms, wireworms, and boUworms. 



The cotton caterpillar, W. Newell ( Georgia Stale Bd. Ent. Bui. 9, jyp. 14, figs. 4). — 

 The cotton caterpillar is said to have caused considerable destruction in various parts 

 of Georgia during the season 1903. Notes are given on the life history, habits, and 

 natural enemies of this pest. p]xperiments were made in dusting cotton plants with 

 a mixture containing 1 part Paris green and 4 parts air-slaked lime. This method 

 was compared with spraying by means of solutions of Paris green and arsenate of 

 lead. 



The results of these insecticide applications were encouraging in all cases. Spray- 

 ing with Paris green seemed to be rather more effective than arsenate of lead or Paris 

 green in a dry foim. The chief advantage of the last named method is the ease and 

 rapidity of its application. In wet weather it is recommended that the cotton plants 

 be sprayed with a mixture of arsenate of lead at the rate of 3 lbs. to 50 gal. of water. 



The potato beetle, F. Siiekmax, Jr. {North Carolina Dept. Agr., Ent. Circ. 9, pp. 

 S, figs. ,?). — Notes on the distribution, life history, food habits, and means of com- 

 bating the potato l)eetie. The remedies most strongly recommended l)y the author 

 are Bordeaux mixture and Paris green, Paris green and limewater, and Paris green 

 and air-slaked lime. 



Holaniara picescens, a beetle injurious to sugar cane, W. Van Deventer 

 {Meded. Proefstal. Suikerriet West Java, 1904, No. 70, pp. 9, pi. i).— This beetle attacks 

 the plant canes, causing great losses in some parts of Java, and is also injurious to 

 the stems of tol^acco. Notes are given on its ha])its and life history. During the 

 author's experiments with insecticides in coml)ating this pest it was found that while 

 in the soil the beetle could be destroyed by using spoiled molasses, which seemed to 

 be quite harmless to the cane cuttings. 



Relative resistance of leaf -hopper eggs to hydrocyanic-acid gas, corrosive 

 sublimate, and carbolic acid, C. F. Eckart {Hawaiian {Sugar Planters'] Sta. Rpt. 

 1003, pp. 75-80). — Experiments were made for the i)urpose of testing certain chem- 

 icals and their effects upon the eggs of leaf hoppers of sugar cane. Sections of 

 infested sugar cane were cut and submitted to treatment by these different substances 

 at varying strengths. The solutions of carbolic acid were found to l)e ineffective in 

 destroying the eggs, while corrosive sublimate and hydrocyanic-acid gas gave more 

 satisfactory results. The vitality of the sugar cane, however, was injured l)y too 

 long exp(wure to hydrocyanic-acid gas or by dijipimr in too strong solutions of cor- 

 rosive sublimate. 



