56 



KEPOKT OF THE STATE ENTOMOLOGIST I92I 



Percentage of wheat tillers infested wth Harmolita (joint-worm) galls 



1919 



COUNTY 



No. 

 fields 



Cayuga. . . 

 Cortland . . 



Erie 



Genesee . . . 

 Jefferson. . 

 Livingston 

 Monroe . . . 

 Niagara. . . 

 Onondaga . 

 Ontario. . . 

 Orleans . . . 

 Oswego . . . 

 Schuyler . . 

 Tompkins . 



Wayne 



Wyoming . 

 Yates 



H.»iRMOHT.A. TRITICI 



Max. 



Min. 



42 



2 



1. 18 











56 



2 



O5.60 



I 



36.80 



•45 



24 



2 



33-71 



2 



46 



2 



48.80 



2 



10 



2 



20 



6 



4 



2 



36.67 



1.60 



16 



I 



34 



1.05 



Aver. 



H.>.RMOLIT.\ V.\GINICOLA 



Max. 



II .20 



'26" ' 



3 37 



16 



3-03 



.67 



1-54 

 14 



Min. 



•74 



1. 14 

 .80 

 .80 



I 43 



2.1$ 

 I. 71 



1. 91 



.26 



2. 21 

 .81 



ALL 



HAR- 



MOLIT\S 



.67 



1-33 

 ■ SO 



1. 91 

 .31 



Aver, 

 per cent 



11.96 



.24 



3.00 



11.23 



II. IS 

 9-50 

 6.18 

 9. SI 



13.71 



IS. 96 

 3 33 



10.00 

 2.50 



II 59 

 459 



10.90 



It will be noted by referring to the a])Ove tabulation that the 

 heaviest infestations, as in the case of the Hessian fly and wheat 

 midge, occur in the important wheat-producing counties, namely 

 Genesee, Livingston, Monroe, Niagara, Ontario, Orleans and 

 Wayne. The same condition is shown in a general way at least in 

 the tabulation for 1920, given below and also in the data secured 

 the past season. 



Percentage of wheat tillers infested with Harmolita (joint-worm) galls 



1920 



COUNTY 



No. 

 fields 

 ex- 

 amined 



HARMOLITA TRITICI 



H.\RMOLITA VAGINICOLA 



ALL 



HAR- 



MOLITAS 





Max. 



Min. 



Aver. 



Max. 



Min. 



Aver. 



Aver, 

 per cent 





13 

 3 



12 

 I 

 2 

 8 

 8 

 30 

 II 



25 



14 

 9 



26 

 I 



29 

 6 

 8 

 2 



IS 



16.77 

 2.60 



I 33 



4 



1-33 

 35 



8.80 

 17^33 



IS20 



7 23 

 29 -33 



14-67 



22.40 



2.67 



12.31 





I 39 



• 87 



■".■66 

 1.42 

 -33 

 3-32 

 3-42 

 3.89 

 I 94 

 1.63 

 S.80 



3-23 



■■8.27 

 133 

 3.18 



I 33 

 2.67 

 I 33 



2.67 

 2. II 



2.67 

 ■ .80 

 3.08 





■ ".isi) 

 -33 



-17 



• 23 

 ■30 



. 12 

 . 10 

 .21 



1 .39 



Cayuga 



■ 87 



Chautauqua 







1 . 33 







Erie 



• SO 





3.32 



Livingston 



3-42 

 4. 12 



Niagara 



2.24 





1.63 



Ontario 



S.80 



Orleans 



Rensselaer 



3.31 

 8.30 



Tompkins 



Wayne 



1.33 

 3 31 



