Eighteenth Report of the State Entomologist of Connecticut for The
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State of (tonnecticut The' Connecticut Agricultura,l'· Experiment Station NEW HAVEN, CONN. Bulletin 211 BEING THE EIGHTEENTH REPORT OF THE STATE ENTOMOLOGIST FOR 1918 W E BRITTON, PH.D. EIGHTEENTH REPORT OF THE STATE ENTOMOLOGIST OF CONNECTICUT FOR THE YEAR 1918 I (Being Bulletin 211 Connecticut Agricultural Experiment Station) BY W. E. BRITTON, PH.D. State Entomologist NEW HAVEN, CONN. 1919 CONNECTICUT AGRICULTURAL EXPERIMENT STATION. OFFICERS AND STAFF BOARD OF CONTROL. His Excellency, Marcus H. Holcomb, ex-officio, Pre8ident. James H. Webb, Vice President ............................. Hamden George A. Hopson, Secretary . ............................ Wallingford E. H. Jenkins, Director and Treasurer ..................... New Haven Joseph W. Alsop .............................................Avon Wilson H. Lee ..............................................Orange Elijah Rogers ..........................................Southington William H. Hall ...................................South Willington Administration. E. H. JENKINS. PH.D.• Direc/OT and Trea ...r .... MISS V. E. COLE. Lil>rarian and Stmographer. MISS L. M. BRAUTLBCHT, Bookkupf7' and 8tmograph .... WILLIAM VEITCH, In charg. 0/ B..ilding. and Gro..n.u. Chemietry. Analytical Laboratory. .JOHN PHILLIPS STREET. M.S. E. MONROE BAILEY. PH.D.• Chemi.t in charge. C. B. MORISON. B.S.• C. E . SHBPARD. l A . t t Che . t M. D·Esopo. PH.B.. H. D. EDMOND. B.S. f··" an m18 • . ' FRANK SHELDON. LaboratoTl/ A ....tant. V. L. CHURCHILL, Sampling Agmt. MISS A. H. Moss. Stmographer. Protein Research. T. B. OSBORNE. PH.D,. D.Sc.'. Chemi.t in Charg •. MISS E. L. F>:RRY. M .S .• A.sistant. Botany. G. P. CLINTON, Sc.D.• Botanist. E. M. STODDARD. B.S., A••i.tant Botanist. FLORENCE A. MCCORMICK. PH.D.• Sci.ntijic A ....tant. G. E. GRAHAM. G.n ... al Assistant. ~ntomoIOIlY. W. E. BRITTON, PH.D.• Entomologist; Stal. Entomologist. B. H. WALDEN, B.Allr., ·Fir.t Assistant., I. W. DAVIS. B.Sc.• M. P. ZAPPE, B.S., A..i.tant•. MISS MARTHA DE BUBSY. Stmographer. Forestry. WALTER O. FILLEY. FOT ..t .... al.o Stale FOT.st...' and State FOT ..t Fire Warden. A. E. Moss. M.F.• Assi.tant State and Stalion FOT•• t .... MISS E. L. AVERY, Stmograph .... Plant Breedinll. DONALD F. JONES.,e.D., Plant Br••d.... C. D. HUBBELL. A.si.tant. Vep:eta.ble Growinlli. W,. C. PELTOI'", B.S. .. Absent on lea.ve. In service of the United Sta.tes. CONTENTS Page Report of Receipts and Expenditures................... ...... 249 Publications of Entomological Department, 1918 ...... ........ 250 Summary of Inspection and Office Work ....................... 251 Department Staff............................... ........... 251 New Equipment............................................ 253 Chief Lmes of Work ....................................... 253 Inspection of Nurseries ...................................... 255 Nursery Firms in Connecticut Receiving Certificates in 1918 ..... 257 Inspection of Imported Nursery Stock......................... 259 Pests found on Imported Nursery Stock in 1917-18 ......... 261 Inspection of Apiaries ....................................... 262 Records of European Foul Brood in Connecticut........... 266 Records of American Foul Brood in Connecticut............ 269 Suppressing the Gipsy and Brown-Tail Moths in 1918 .... ...... 272 Men Entering the Service in 1918 ......................... 272 New Equipment...................... .. ... .......... 273 Labor and Board ............................... ....... 273 Spraying............................................... 274 New Towns Infested .................... ... ... .. .... 275 Parasites ............................... , .............. 275 Details of Gipsy Moth Work by Towns.................... 276 Statistics of Infestations.................... ............ 285 Brown-Tail Moth Work................................. 286 Appropriation and Expenditures.......................... 286 State Finance Board Visits Stripped Woodland in Massachudetts 288 Future Needs .......................................... 289 Record of Treatments in an Attempt to Control the Striped Cucumber Beetle............................................... 290 Spraying Experiments, at Clintonville ....... , . , ....... , . , '...... 292 Tests of Sprays to Control the Potato Aphid, , ..... , . , . , . , . .. 294 The Oriental Peach Moth .. , ........ , , , ... , ... , ... , .. , ....... 298 Original Home. , ......... , .... , , , ..... , . , ......... , .... 299 Distribution in Connecticut....... , ................ , .. , .. 299 Distribution in the United States, ..... , ... , ......... , .... 300 Status a:'! a Pest..... , , .... , ......... , ....... , . , ........ 300 Injury to Twigs .. , ...................... , ..... , ........ 300 Injury to Fruit.... , , . , .. , . , .......... , ....... , ....... 301 Number of Broods ... , ....... , ....... , , . ...... , . , ..... '. 302 Food Plant:'!............... , ..... , ... , , ...... , .. , .. .... 302 Life History and Habits." ............. , . ...... ,', . ... ,. 302 Mean:'! of Spread ................... , , .. , . , ... , ... , ...... 302 Natural Enemies, , , ......... , , ... , , .. , . .. , . , . , ... , .. 303 Description ..... , , ..... , , , , , , ... , ........... , , . , , .... 304 Control Measures, , ...... , ..... , ... , . , . , . , ... , .. ....... 304 Literature ........................ , . , ... ... .......... 305 The Peach Twig Borer ............... , ......... ... , , , ...... 306 Distribution in Connecticut, ...... , ......... , ... ........ 307 Injury to Twigs and Fruit ...... , ............ , .......... 307 308 Me:c~b~~~i,·.· :: : : : : : : : : : : : : : : : : : ;': :: : : : : : : : : : : : : : : : : : : : : 309 Methods of Control .. , , , , .... , , .. , , , , , , .......... , ..... , . 309 Literature ... , .............. , ............. , ............ 310 Life History and Development of the Greenhouse Cockroach ..... 311 Effect of Temperature, . , . , , , ... , . , . , . , . , ......... , , .. , .. 311 Natural Enemies .. , ........ ' . , ... ' .................... 312 Life History...... , ..................................... 312 Moults ............... ................................ 312 Page Occurence of the European House Cricket in Connecticut ........ 313 Distribution............................................ 314 Habits ................................................ 314 Description ............. .. ....... ......... .. ......... 315 Control Measures .... .. .............. .. ...... ....... .. 315 Literature .......... .. .............. .... ............... 316 The European Corn Borer. A Dangerous Insect Which May Occur in Connecticut...... ..... ............ ............... 316 318 ~~frrb~ti~~·.·. '. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 319 Food Plants..... ................ .. .............. ..... 320 Habits and Life History .. ... ... .. ...... .. ...... .... 320 Description ............... ............................ 321 Means of Spread.... .. .................. .... .......... 322 Quarantines......................... .... .... .. ....... .. 323 Control Measures..... .. ................................ 324' Disposal of Infested Stalks.......... .. ...... ..... ... 324 Destruction of Weeds and Rubbish ... .... ..... ...... 325 Literature .............. .. .............. .. ............. 325 The Bean Leaf Beetle . .................. .... ............ .. 327 Literature . ........................................... 329 Injury by the Raspberry Sawfly ..................... .. ....... 329 Literature ......... .... ... ............... ............ 331 The Iris Root Borer......................................... 331 Garden Slugs..... ... ................ , .. .. ...... .. .... ... 333 Food Plants.................. ... .......... ... .. .. .... 333 Life History ............. .. .... ................ .. ...... 334 The Spotted Garden Slug................................ 334 Control Measures . ...................................... 335 Mosquito Work in 1918 ........ ... .... ............... .. .. .. 337 Madison............................................... 337 Guilford ...................................... , .... .. .. 338 Branford ............................ ..... .. .. ..... .. .. 338 East Haven....................... ........ .... ...... .. 339 New Haven.................................. .. ... .... 339 Orange ................................................ 339 Fairfield............................................... 340 Entomological Features of the Season .. ..... .............. 340 Miscellaneous Insect Notes............ ..... .... .......... 342 Larva on Tartarian Honeysuckle .... ............ .. ...... 342 The Clavate Tortoise Beetle ............................. 342 Abundance of Potato or Cucumber Flea-Deetle . ....... .. 342 The Rose Chafer.................... .................. 342 Salt Marsh Caterpillar Feeding on Bean.......... ... ... 342 Abundance of Three-lined Potato Beetle .......... .. ....... 342 Birch Leaf Skeletonizer ................. ..... ... ........ 343 Leaf-Ty'er on .Roole ...................................... 343 Schizura unicornis on Hickory..... .... ..... .. ...... ... .. 343 The Saddled Prominent in LItchfield County ... .. ...... ... 343 Absence of Tent-Caterpillar.............................. 344 An Orchid Weevil in Connecticut...... .... .. ... ....... 344 Chamyris cerintha Feeding on Privet ...................... 344 White Woolly Larvae on Hickory............ .......... 34.5 Chrysanthemum Gall Midge . ~ . .. ...... ....... ..