- k 



REFERENCES 



1. Boyce, A.M. 1929- The Walnut Husk Fly ( Rhagoletis jug land is Cresson). 



J. Econ. Entomol . 22:861-66. 



2. Dean, R.W. 1968. Infestation of peaches by Rhagolet i s suavi s . J. 



Econ. Entomol. 62(^) :9i»0-'4l 



3. Gambrell, F.E. 1931. The fruit flies of New York. J. Econ. Entomol. 



2't(l):226-32. 



4. Riedl, H., and R. Hislop. 1985- Visual attraction of the walnut husk 



fly to colored rectangles and spheres. Environ. Entomol. 

 14:810-14. 



JL ^ JU Jt. J^ 



POMOLOGICAL NOTE 



Thermometers 



Wi 1 1 iam J. Lord 



Department of Plant and Soil Sciences 



University of Massachusetts 



Some storage operators foolishly use uncal ibrated thermometers to set 

 their thermostat(s) . It is not at all unusual for thermometers to be inac- 

 curate by 1 or 2 degrees. Consequently, rooms are sometimes run at 30° or 

 34° instead of a desired 32°F. Occasionally, thermometers are highly inac- 

 curate. We know of a storage operator who set the thermostat in a CA 

 Mcintosh room with a thermometer that was reading 7° low. He loaded the 

 room at 39° (the thermometer read 32°) and operated the room all winter at 

 43° (the thermometer read 36°). The fruit was a complete loss. 



Don't entrust your valuable, stored apple crop to an uncal ibrated, 

 "cheap" thermometer with 2° subdivisions on the scale. Remember that all 

 thermometers except primary reference thermometers should be calibrated with 

 a primary reference thermometer or by placing the thermometer into a con- 

 tainer of melting ice and ice water, which will be 32°. All thermometers 

 should be checked for corrections of reading at the beginning of each 

 storage season. 



Sources of thermometers: 



Orchard Equipment and Supply, Co, 

 P.O. Box 540 

 Conway, MA 01341 



Rodeo Products Co., Inc. 

 P.O. Box 944 

 Columbus, NE 68601 



Fred Reeve, Inc. 

 132 Sound Ave. 

 Riverhead, NY II9OI 



A.M. Leonard, Inc. 



P.O. Box 816 



Piqua, OH 45356-08l6 



