ECONOMIC ZOOLOGY ENTOMOLOGY. 57 



mndo of Iho orsniiizntinn. 0(inipniont, locturos, corros]ioii(lonco, and nursery in- 

 .siHH-tion of tlio vMiloniol(»,iri<'al deitartnioiit. During: the year under report about 

 (5,000 trees were sjjrayed for seale ins(>cts and attention was also given to to- 

 lia<-('0 insects. iii.)S(|ui(oes. insecticides, clin-leaf i>eetle, onion nia^Kot, cutworms, 

 San Jose scale, etc 



More than ('..(mio jicar, iveacli, and ai)ple trees located in r> towns were treated 

 for San Jose sc.ile. Tlie si)ray ^nixtnres included lime-sulphur and lime-sulphur- 

 salt w.-islies lioiieil with external heat or self-boiled and kerosene-limoid emul- 

 sion. The linie-suliihnr mixture was itrei)ared according to the formula 20-14— 

 40. The average etliciency ranged from 88.8 to 94.9 per cent, beiug lowest in 

 the case of kerosene limoid and highest after the use of a lime-sulphur and 

 sodinui-siilphid wash. The cost of the various washes ranged from 54 cts. to 

 ."t;!. (■>('» per 40 gal., being lowest in the case of lime-sulphur wash and highest 

 with the kerosene limoid. The author considers all of the mixtures as fairly 

 satisfactory. No api)reciable benefit was oI)served from the addition of salt to 

 tlie lime-sulphur wash. 



A list is presented of insects collected frou) the flowers of fruit trees and 

 I)lan1s .nnd notes are also given on mosquitoes, woolly maple scale, tussock moth, 

 sc.ile insects of Connecticut, gypsy moth, and Indian meal moth, as well as short 

 |iaragiMi»li>^ <"> " number of less important injurious insects. The apple mag- 

 got was found infesting huckleberries and the thistle butterfly was observed as 

 an enemy of holl.xhocks. 



Report of the entomologist, E. II. Sellard.s {Florida Hid. Rpt. 1!)0',, pp. 

 /7-i.s'). — During the year under report considerable of the entomologist's time 

 has been taken with identiflcation of insects and nursery inspection. The desir- 

 ability of a State inspection law is urged. Considerable damage was done to 

 liotatoes by a potato maggot {I'cgomnht fusciceps). This pest tunnels thrrugh 

 the ])otato causing a destruction of its substance and leading to the develop-jient 

 of decay. It is suggested that the use of commercial fertilizers may assist in 

 repelling this insect. Some injury was also done to potatoes by ants which 

 attack the stems. The conunon potato beetle is also reported as having at last 

 lieen found in Florida. The injuries thus far done in Florida are not very 

 sericnis. 



Considerable attention is given to a discussion of the mosquitoes of Florida 

 and notes are presented on white fly, cottony cushion scale, cotton stainer, and 

 rucJiiKiiift (listdiist which attacks the roots of the grape fruit. 



Report of the entomologist, J. B. Smith (^^ew Jcrsei/ fita.s. Rpt. 1905. pp. 

 .'>.i7-(!S~;. pis. 7. fh/s. .HI). — In combating the San Jose scale the author recom- 

 mends that sjiraying be done as soon as the fruit is off and the foliage is mature 

 in the fall. Preference is given to soluble oils as an insecticide although other 

 kei'oseiie mixtures ;uid lime-sulphur-salt are also recommended. An accouut 

 is presented of the eft"orts put forth in Newark and other cities of New Jersey 

 in controlling shade-tree insects under the direction of commissions appointed 

 for that purpose. Notes are also given on the oyster-shell bark-louse, elm-leaf 

 beetle, gyi)sy moth, brown-tail moth, pear psylla, cornstalk borer, rose chafer, 

 .Vsiatic lady bird, tussock moth, i)eacli soft scale, cottony maple scale, and other 

 injurious insects. 



During the season successful experiments were carried out with a lime-sul- 

 phur-caustic-soda mixture ai)plied in the first week of April for destroying San 

 Jose .scale. A l)rief summary is also presented of entomology in the crop bulletin 

 and on observations made in the exi)erimental orchard of the station. In 

 experiments on cranberr.v insects it aiipeared that l-Jiidciiiis riHciniana may be 

 partly destroyed in the egg stage by flooding the cranberry beds for 2 weeks 



