LETTER OF TRANSMITIAL. 



StATI-: lixPRRIMENT STATION, 



I,)ecenil)er 7. [()o6. 



His Hscr/lcncy, Joint A. Johnson, Si. /\ni/, Minn. 



Dear Sir: I herewith present U) you the eleventh annual 

 report of the State l^ntomologist of Minnesota, taking this 

 opportunit}' to thank all who have in an}- way aided the work 

 of the vear. and to testit}- to my ai)preciati()n of }'()ur cnnrtesies 

 and of help recei\ed from you in warious wa)'s. 



The i)rincipal work tor the year has been directed against 

 the Cahbage Maggot, full details of which are ])rinted in the 

 early part of the report. General insect conditions are found 

 on page 21. The Soft Scale of the Plum, p. ^y : the Cottons- 

 Maple Scale, p. 54; tlie Army Worm. p. y): the Stalk lictrer, 

 ]). ()] : an Onion Maggot new to Minnesota, p. i<;: ha\e all 

 been injurious this summer, and each has been gi\en s])ace 

 in the following pages. 



Idle new Insectar}-. descri])ed and pictured on i)age /() 

 has been completed and l)i(ls fair to be as useful an institution 

 here as it is at other experiment stations. In connection with 

 it the Board of Regents of the L niversit}- and the Director 

 (tf the Experiment Station have granted the Entomologist 

 id)out a third of an acre of land for ex])erimental ])iu'poses, 

 which is far superior to a stri]) previously given and used as 

 an experimental garden. 



In \iew of ])ossible iinasions into Minnesota of insect pests 

 of torest trees, scMiie of which are now costing the \arious 

 states alTected hundreds of thousands of dollars, and in \iew 

 too, of the certain increase of frtiit tree pests due to the rapid 

 growth of orchard acreage in the state, it a])])ears of prime 

 importance that our school children, and their teachers, and 

 young people generall}-. should become conversant with the 

 leading jiests of forest, shade and fruit trees, and at the 

 .Annual Meeting of the State Horticultural Societv, just 

 adjourned, in conformance with this sentiiuent, a comiuittee 

 ()f three, with the State Entoiuc^logist as chairman, was ap- 

 |)ointed to confer with the state school authorities as to the 



