31 



Table 10. — Comparison of sound and wormy fruit from trees sprayed with Bordeaux 

 mixture and Paris green, and from si.c unsprayed trees of the Jonathan variety, Hansell 

 orchard, Fordland, Mo., 1906. 



"5 apples. 



b 3 apples. 



o8 apples. 



d 6 apples. 



It Avill be seen that tlie average yield of fruit free from codling 

 moth injury from the 6 sprayed trees was 95.8 per cent as against 

 63.4 per cent of uninjured fruit from the 6 unsprayed trees, being a 

 gain of 32.4 per cent. 



It wdll hav3 been noticed that in the work in Fordland, Mo., the 

 percentage of codling moth injury to fruit from the treated trees 

 was appreciably less than in the work at Bentonville, Ark. As 

 explained in regard to the treated orchard at the latter place, this 

 was bordered on two sides by large orchards which received no treat- 

 ment during the season and which without doubt served as sources 

 of reinfestation for the treated trees. The orchard at Fordland, on 

 the other hand, was isolated, except for one orchard bordering it on 

 the north, which received treatment for the codling moth. 



The codling moth is best controlled when all of the orchards of a 

 neighborhood are sprayed, and uniformity in this particular on the 

 part of orchardists should be secured if possible. 



RECOMMENDATIONS. 



The first treatment for the codling moth should be made immedi- 

 ately after the blossoms fall. In this application the aim should be 

 to place, as nearly as possible, a particle of the poisoned spray in the 

 calyx cavity of every apple. At this time the little apples are mostly 

 upright on the stems, and more effective work may be done by spray- 

 ing from above, directing the spray downward. Long extension rods 

 are indispensable, and for this application an elbow fitting between 



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