146 EXPERIMENT STATION RECORD. 



given on the life history of some other i)otato insects, the blister beetles 

 Upicauta pcnn sylvan ica and Macrohasis unicolor. 



Illustrated, descriptive, and life-history notes are given on the 

 imported cabbage butterfly {Pieris rcqice)^ native cabbage butterfly (P. 

 2)rotodice), zebra caterpillar {Mamestra picta), cabbage plusia {Plusia 

 brassiccu), and cabbage plutella {PlnteUa crimferarvm), and the destruc- 

 tion of the larvjB by the application of boiling water, pyrethrum pow- 

 der or tea, or a mixture of lime and carbolic powder is recommended. 

 As a rule, however, the attacks of parasitic hymenopters, especially 

 Apanteles glomeratus, will effectually keep down the numbers of the 

 pests. 



Illustrated, descriptive, and life-history notes and remedial treatment 

 are also given for sawflies in general, the imported currant worm 

 {Nematus ventHcosus)^ native currant worm {Pristiphora grossuJariw), 

 currant plant louse {Aphis ribis), currant borer {8esia tip ul if or mis), 

 grapta butterfly {Grapta comma), and Alined leaf bug {Pmcilocapsus 

 lirieatus). Eemarks are made on several borers that have proved inju- 

 rious throughout the State, and descriptive, life-history, and remedial 

 notes are given for the maple tree borer, red oak hoTer {Trochilium lug- 

 geri), ash tree borer {T. fraxini), and Prionoxystus qucrclperda. A leaf 

 roller {Cacoecia scmlferana) was injurious to box elder, and spraying 

 with Paris green was found to assist the work of tlie natural parasites. 

 The apple tree leaf roller {Cacwcia rosaceana), corn worm {Hcliothis 

 armigera), rosin weed caterpillar {R. plilogopliagus), parsley butterfly 

 {Papilio asterias), box elder bug {Leptocorsia triviUata), bean fly 

 {Anthomyia sp.), wheat stem maggot {Meromyza americana), Hessian 

 fly {Cecidomyia desiructor), and several species of plant lice were vari- 

 ously injurious, and are described and remarked upon at length. 



General remarks are made on scale insects, with descriptive and 

 remedial notes on the mealy bug (Z)acfyZopiws citri), cottony maple scale 

 {Pulvinar'ia innumerahilis), willow or cottonwood scale {Chionaspis 

 salicis), cactus white scale {Diasjjis cacti), elm tree white scale {Chio- 

 naspis americana), and eccentric scale {Aspidiotus ancylus). 



Illustrated descriptions of variouH forms of apparatus for applying 

 sprays, and directions for the preparation and use of insecticides, are 

 given. 



The habits of cutworms are briefly noted and the use of xjoisoned 

 baits and insect lime against them is recommended. A list is given 

 of 233 species of cutworm moths or owlet moths taken by sugaring at 

 St. Anthony Park. 



Some injurious insects, E. A. Oooley {Massachusetts Hatch Sta. 

 Bui. 30, pp. 20, figs. 9). — Tliis comprises illustrated, descriptive, hfe-his- 

 tory, and remedial notes on the imported elm leaf beetle {Galerucella 

 lutcola), maple pseudococcus {Pseudococcus aceris), and Abbot sphinx 

 {Thyreus abhotii). 



The elm leaf beetle made its appearance in Massachusetts in the 



