state of aonnecticut The Connecticut Agricultural Experiment Station NEW HAVEN, CONN. / Bulletin 247 BEING THE TWENTY- SECOND REPORT OF THE STATE ENTOMOLOGIST FOR 1922 W. E. BRITTON, PH.D. I TWENTY-SECOND REPORT OF THE STATE ENTOMOLOGIST OF CONNECTICUT R THE YEAR 1922 (Being Bulletin 247, Connecticut Agricultural Experiment Station) BY W. E. BRITTON, Pn.D. State Entomologist CONNECTICUT AGRICULTURAL EXPERIMENT STATION OFACERS AND STAFF February, 1923 BOARD OF CONTROL. His. Excellency, Charles A. Templeton, ex-officio, President. James H. Webb, Vice President ................................Hamden George A. Hopson, Secretary ...: ...........................Mt. Carmel E. H. Jenkins, Director and Trcastcrer ......................New Haven Joseph W. Alsop ................................................. Avon Charles R. Treat .............................................. .Orange Elijah Rogers ........................................... :. Southington Edward C. Schneider ..................................... .Middletown - STAFF. Administration. E. H. JENKINS,PH.D., Director and Trearurer. W. L. SLATE,B.Sc., Vice Director. MISS L. M. BRAUTLECHT,Librarian and Bookkeeper. MISS J. V. BERGER,Stenograplrer and Bookkeeper. WILLIAMVEITCH, In charge of Buildings and Grounds. Chemistry: ... Analytical Laboratory. E. MONROEBAILEY, PH.D., Chemist in Charge. 11. E. ANDICEW,M.A. \ C. E. SHEPARD, Assista~rt Che~nists. OWENL. WOLAN, HARRYJ. FISHER,A.B. FRANKSHELDON, Laboratory Assistant. \I. L. CHURCHILL,Sanrplitzg Agent. hf~3.B. P. STORRS,Clerk. Biochemical Laboratory. T. B. OSBORNE,PH.D., D.Sc., Chemist in Charge. Botany. G. P. CLINTON,Sc.D., BotaaiSt in Charge. E. AI. STO~DARD,B. S., Pot~zologisl. MISS FLORENCEA; MCCORMICK,PH.D., Pathologist. G. E. GRAHAM,Ge+teral Assistant. MRS. \Ir. Mr. I<ELSEY,Secretary. Entomology. W. E. BRITTON,PH.D., Entomologist in Charge; State Ento- titologist. B. H. WALDEN,B.AGR., M. P. ZAPPE, B.S., ,gbsiStaRt PHILIPGARMAN, PH.D. 1 Enton~ologists, JOHNT. I\SH\VOBTH. Dep~~tyin Charge of Gipsy .lIoth Work. SAMUELT. SEALY,Deputy in Clrorge of Alosqfrito Control. A,11ss GLADYSXI. FINLEY,Ste~tographer. 'Forestry. WALTEK0. FILLEY,Forester irr Clrarge. A. E. hloss, 1.1. F., Assi.ctant. H. W. HICOCK,hf.F., Assistant. MISS PAULINEA. MERCHANT,Stenographer. Plad Breeding. DONALDF. JONES,S.D.. Plant Breeder. P. C. ~~ANGEL~D~RF,B.S., Assistant. Tobacco Sub-station . G. H. CHAPMAN,PH.D., in Clrarge. at Windsor. , . CONTENTS PACE Twenty-second Report of the State Entomologist ................... 269 Report of Receipts and Expenditures ............................. 270 Summary of Inspection and Office Work .......................... 270 Publications of Entomological Department ........................ 271 Department Staff and Work ...................................... 272 Enton~ological Features of 1922 .................................. 274 Fruit Insects ................................................ 2fl Vegetable Insects ............................................ 276 Shade Tree and Forest Insects .............! .................. 277 Miscellaneous Insects .............................. 278 Inspection of Nurseries ................................ 279 Pests ............................................. 279 Nursery Firms Receiving Certificates in 1922 ......... 280 Inspection of Imported Nursery Stock ............................3 282 Pests Found on Imported Nursery Stock ...................... 284 Inspection of Apiaries ............................................ 284 Summary ................................................... 289 Report of Work in Suppressing the Gipsy and Brown-tail Moths .... 290 Extensive Wind-spread ....................................... 290 Methods of Work ............................................ 291 Scouting .................................................... 291 Marking Trees .............................................. 292 Spraying and Banding Trees .................................. 293 Labor Conditions ............................................ 293 Equipment .................................................. 294 Details of \?lark in Each Town ................................ 294 Statistics of Infestations ..................................... 310 Summary of Infestations ..................................... 313 Towns in the Infested Area Which Were Not Scouted .......... 313 Parasites .................................................... 313 The Gipsy Moth Quarantine .................................. 317 Financial Statement .......................................... 321 Cost of Moth Suppression Work ............................. 321 Increased Appropriation Needed .............................. 322 Infestations in Other States ................................... 323 Future Outloolc .............................................. 324 Recommendations ............................................ 326 Mosquito Control Work. 1922 ..................................... 326 Tests of Sprays to Control the San JosC Scale .................... 329 Tests of Paradichlorobenzene as a Remedy for the Peach Borer ...... 331 Cabbage Root Maggot Experiments ............................... 332 Work with the European Red Mite in 1922 ......................... 333 The Occurrence of Several New Spider Mites in Connecticut ...... 3.18 Notes on the Life History of the Spruce Mite ..................... 340 Does the Corn Ear Worm Live Over Winter in Connecticut? ...... 343 Notes on the Egg Stage of the Euonymu~Scale .................... 344 An Asiatic Beetle in Connecticut .................................. 346 Xisotine Dust as a Control for the Turnip Aphid .................. 346 The Rhododendron Borer ......................................... 347 Life History ................................................ 340 Natural Enemies ............................................ 349 . Descriptions ................................................. 350 Control ..................................................... QjI PAGE The Maple Borer ................................................ Character of Injury .......................................... Life History and Habits ...................................... Description .................................................. Control Measures ............................................ The Maple Sesian ............................................... Life History and Habits ...................................... Description ................................................. Natural Enemies ............................................. Control ..................................................... The Spruce Gall Aphid ........................................... Life History and Habits .................................... Control Measures ............................................ The Bronze Birch Borer ......................................... Character of Injury .......................................... Life History and Habits ........... ........ Description ........................ ........ Control Measures .................. ........ Control of Ant Invasions ............... ........ ~he'~uro~cancorn Borer ........................................ Miscellaneous Insect Notes ....................................... Chinch Bugs Injuring Lawn ................................. The Sour Gum Leaf-miner ................................... The Blue Elm Beetle ......................................... Scolytid Bcetles in Pine Trees ............... ........ Leaf-miner in Cultivated Sorrel .............. ........ Beetles Boring in the Timbers of an Old Hous ....... A Rare ant1 Curious Horn Worm ........... ....... Galls on European Willows .................................. The Cottony Cushion Scale in a Connecticut Greenhouse ........ Maggots Appearing in Factory ............................... A Borer in Rose Stems ....................................... Rose Midge ill Connecticut ................................... Cut-worms Injuring Strawberries ........... ....... Larvae Fccding upon Pansies ............... ....... A New House Fly in Connecticut ............ ....... The Hemlock Web-worm .................... ....... Rose Chafers in Vineyard .................. ....... Cut-worms Attacking Raspberries and Asparagus ....... Cabbage Worms Controlled by Sulphur-Lcad-Arser~ate DI Springtails Injuring Vegetable Seedlings ............. Clothes Moths ..................................... Note Regarding Authorship ..................... Illustrations ................. Indcx ....................... TWENTY-SECOND REPORT OF THE State Entomologist of Connecticut To tlze Director avd Board of Coutrol of the Coratlecticut Agri- ct.~lturalEx fierimen f Statio.rt : I transmit, herewith, my twenty-second annual report as State Entomologist of Connecticut. The financial statements cover the State fiscal year ending June 30, 1922, but in other respects this report deals with the activities of the department for the calendar year of 1922. One of its features is the remarkable wind-spread of the gipsy moth which we thought was well under control until the beginning of the year 1922. All regulatory matters, such as inspection of nurseries, imported nursery stock, and apiaries, mos- quito elimination and gipsy moth control, are described in detail. Two important papers describing work done in part by this department have been published. as follows: Results of Dusting versus Spraying in Connecticut Apple and Peach Orchards in 1922, Bulletin 245: The Apple and Thorn Skeletonizer, Bulletin 246. These papers,