119 



Page. 

 Kerosene. Hce Coal oil. 



emulsion, insecticide, experiment against maple scale 86,87,88 



use against coffee leaf-miner 99 



cottony maple scale 90-91 



spraying Lecanium species 57 



use against leaf-hopper in Minnesota 45,46 



Kero-water, spraying Lecanium species 57 



use against leaf-hopper in Minnesota 46.47 



KliiiopJiilos lectularia. See CUnocoris lectularia. 



Lady beetle. See Ladybird. 



Ladybird, Asiatic, use against scale insects . , 69,79 



(Chiloconis siniilis) introduction into New Jersey 76-77 



(lady beetle) Chinese. New York report, 1904 51-52 



Ohio report for 1904 52-53 



Ladybug. Sec Ladybird. 



Laurent, Philip, work with Paraieiiodcra sinensis, note 77, 78 



Lead, arsenate. See Arsenate of lead. 



Leaf worm, cotton, value in control of cotton boll weevil, note 30 



Leaf-beetle, elm, appearance at Dayton, Ohio 50 



New York report. 1904__ 51 



Ohio report for 1904 55 



Leaf-hopper, destructive, work for control, preliminary report, paper liv 



F. L. Washburn 1 '_ 43-47 



Empoasca ;»«//, life history, remarks 44 



grapevine protection, use of spray 47 



Minnesota report for 1904 56 



spraying for control ; 46-47 



Leaf-miner, beet, Colorado report for 19u4 61 



coffee, importance in Cuba 28 



life history and treatment 98-99 



paper by Mel. T. Cook 97-99 



picking of coffee leaves in spraying 99 



Lecanium, species, Minnesota report for 1904 57 



Legislation, insect, statement for United States 19-20 



proposal for control of boll weevil 40 



Lemon trees, injury by ant, IridoiiujrDic.r hiniiilis 83 



Lepidoptera, Cuban, pupation periods 28 



genera subject to legislation 20 



Leucoptera coffeella. See Leaf-miner, coffee. 

 Lice, plant. See Plant lice. 



Ligynis nigiceps. Georgia report for 1904 72 



Lime and Paris green mixture, use against Alabama argillacea 70 



hydrated, use as insecticide, note 91 



salt, and sulphur wash, usefulness, notes 21,22 



sulphur, and salt wash, usefulness in eastern United vStates 13 



Lime-sulphur-salt insecticide, experiment on maple scale 86,87,88 



wash, new, formula and preparation 26 



poor success in New Jersey 27 



use against San Jose scale in Georgia 69 



washes, experiments, paper by E. P. Felt 25-28 



" Lincoln bug." See Cri/ptocepJialns obsolettis. 



Live oak, observation of ant nests, note 80 



Locust, black, infestation by flea-beetle 53 



infestation with gall-makers, note 57 



seventeen-year, Ohio repoi't for 1904 54 



Locusts, black, infestation with cottony maple scale, note 1 85 



Louisiana, distribution of ant Iridonnjnnr.r liiDnilis 82-84 



Nev,- Orleans, ant pest, report 79-84 



Loxostegc sticticulis. Sec Webworm. 



Liictus striatiis, injury to electric cars 53-54 



Maggot, apple, Ohio report, 1904 . 51 



radish, Colorado report for 1904 59-60 



wheat-stem, Minnesota report for 1904 ^ 56 



