32 



DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 



NATURAL ENEMIES. 



PARASITES. 



At frequent intervals throughout the summer quantities of wormy 



fruit were brought 

 into the laboratorv 



mi 



from different orchards 

 throughout Contra 

 Costa County and kept 

 in jars in shaded 

 places out of doors , 

 but not a single hy- 

 menopterous or dip- 

 terous parasite was 

 reared from all the 

 worms in this fruit. 

 Neither was there any 

 reared from the material taken under bands on pear and apple trees. 



80 



70 



eo 

 so 



40 

 SO 

 20 



/o 



o 















































































































































































































































*~ /9 2\ 

 +JUM/F 



5 3 /O /7 24*3/ 7/4 2/ 2& 



4 /4 



.sept; 



Fig. 13.— Weekly emergence of moths from material collected under 

 bands on 15 pear trees, at Suisun Cal., 1910. (Original.) 



PREDACEOUS ENEMIES. 



Occasionally a carabid larva was found under the bands eating the 

 larva?, and late in the season a number of tenebrionid beetles, some 

 of which were compared to beetles determined by Air. E. A. Schwarz, 

 of the Bureau of Entomology, as Eulabis rufipes Esch. and found to 



2400 

 2200 

 2000 



/eoo 

 /eoo 



/400 

 /200 

 /OOO 



eoo 



600 

 200 







1 

















































/ 



r 

















































/ 



t 

















































1 



t 





/ 



\ 













































t 



I 



f 



\ 













































A 



/ 





\ 













































i 







\ 

































































































































































































































































































2/ 21 



? S /2 /9 26 i 



yJULV 



? S /C23SC 

 AUG. 



» € /3 20 2i 



14 // /& 25 / 



' 8 /5 22 

 /VOW 



Fig. 14. — Band records of the codling moth from apple trees at San Jose, Cal., 1909. (Original.) 



be the same, were found under bands with partly eaten larva?, but 

 in no case were these beetles found actually eating the larva?. 



THE CONTROL OF THE CODLING MOTH ON PEARS IN CALIFORNIA. 



There are some necessary differences in the treatment of pear and 

 apple orchards for the control of the codling moth. The calyx lobes 



