22 CIRCULAR 8 2 8 ; U. S. DEPARTMENT OF AGRICULTURE 



In three orchard experiments reductions in wormy fruit amounted 

 to 49, 37, and 58 percent. The average for all tests showed an increase 

 in clean fruit of 37.5 percent in favor of scraping and banding as a 

 supplement to customary spray programs. 



Scraping involves the removal of the rough bark, the clearing out 

 of cracks, crotches, and holes, and the removal of rotten and split 

 limb stubs and, as far as possible, other places in which the larvae 

 usually cocoon. Scraping should be done in the fall, winter, or 

 spring, before moth emergence starts. The scrapings should be 

 caught on a tarpaulin and burned. 



In recent years banding has consisted in the application of corru- 

 gated paper bands, previously treated with beta-naphthol and heavy 

 petroleum oil, about the trunks or scaffold limbs to capture and kill 

 the full-grown larvae that have left the fruit and are seeking cocoon- 

 ing or pupating quarters. Bands should be applied in June, just 

 before larvae begin leaving the fruit, and may be allowed to remain 

 in position until the following spring. They should be removed and 

 destroyed before moth emergence starts. 



"When labor is available at 60 cents per hour, scraping costs 10 to 

 50 cents per tree, depending on size, age, variety, and physical con- 

 dition. At 1 cent per foot, banding material costs 3 to 10 cents per 

 tree, bringing the total cost of banding and scraping to 13 to 60 

 cents per tree. 



LITERATURE CITED 



(1) Baker, Howard 



1943. orchard tests of chemically treated bands for codling moth 



control ix the missouri river valley. joui*. ecod.. ent. 36 : 

 760-764. 



(2) ■ 



1944. EFFECT OF SCRAPING AND BANDING TREES UPON THE NUMBER OF TRANS- 



FORMING AXD HIBERXATIXG CODLIXG MOTH LARVAE. J0U1\ ECOll. 



Ent. 37 : 624-62S. 



(3) Carlsox, F. W., and Yothers, M. A. 



1941. a power-driven soil-siftixg machixe. U. S. Bur. Ent. and Plant 

 Quar. ET-1S1, 4 pp., illus. [Processed.] 



(4) Gould, E., and Geissler, G. H. 



1941. hiberxatixg codlixg moth larvae. Jour. Eeon. Ent. 34 : 445-4."0. 

 illus. 



(5) Marshall, G. E. 



1931. PREPARATIOX AXD USE OF CHEMICALLY TREATED BAXDS FOR CODLIXG 



moth coxtrol. Ind. [Purdue] Agr. Expt. Sta. Cir. 180, 4 pp., 

 illus. 



(6) Nel, R. I. 



1941. VARIETAL IXTERPLAXTIXG IX RELATIOX TO COXTROL OF THE CODLING 



moth. Jour. Ent. Soc Southern Africa 4 : 111-134. 



(7) Newcomer, E. J. 



1934. PRACTICAL METHODS OF ORCHARD SAXITATION FOR THE CONTROL OF 



the codling moth. Wash. State Hort. Assoc. Proc 30 : 66-67. 



(8) Newcomer, E. J., Rolfs, A. R., and Dean. F. P. 



1933. A PRACTICAL TEST OF CHEMICALLY TREATED BANDS FOR THE COXTROL 



of the codlixg moth. Jour. Eeon. Ent. 26 : 1056-1058. 



(9) Deax, F. P., and Cassil, C. C. 



1943. EXPERIMENTAL METHODS IN MAKING ORCHARD TESTS FOR CODLIXG 



moth control in the west. TJ. S. Bur. Ent. and Plant Quar. 

 ET-215, 20 pp., illus. [Processed.] 



