12 



BULLETIN 959, U. S. DEPARTMENT OF AGRICULTURE. 



Table 8. — Spraying schedule for codling moth, Smith orchard, Grand Valley of Colorado, 



1917. 





Calyx spray. 



Cover sprays, first brood. 



Cover sprays, second and third 

 broods. 



Num- 

 ber 

 of 



A. 



B. 



C. 



D. 



E. 



F. 



G. 



H. 



I. 



plat. 



Petals off May 

 24^29. 



19 to 22 



days after 



A, June 



12-15. 



11 to 13 



days after 



B, June 



23-25. 



16 days 

 after B, 

 June 28. 



10 to 13 



days 

 after C, 

 July 3-6. 



8 weeks 



after A, 



July 18- 



20. 



27 days 

 after F, 

 Aug. 14. 



36 days 



after F, 



Aug. 23- 



25. 



21 days 

 after G, 

 Sept. 4. 



I 



First . . 



Second. . 

 ...do 



Third... 





Fourth.. 

 ...do 



Fifth 





Sixth. . 

 ...do... 





II ... 



do 



...do 





...do 







Ill 



.do. .. 



...do... 



...do 





...do.. 



...do 





...do. 





IV . .. 



.. .do 



...do 



...do 





...do 



...do 





...do... 





V 



.do. . 



...do.. 





Third... 





Fourth. . 





Fifth... 

 Sixth. . 

 ...do. 





vi 



.do 



...do 



Third... 





Fourth., 

 -do. 



Fifth 







VII 



do 



.do.. 



.do.. 





. .do.. 







VIII 



.do. . = . 



...do.. 





Third... 





Fourth.. 





Fifth... 





IX . 



...do 



...do 



Third... 





Fourth.. 



Third... 



Fourth.. 

 ...do.... 

 ...do 



Fifth.... 

 Fourth.. 



Sixth. . 



Sev- 



X 



Calyx spray 



omitted. 

 First 



First.... 



Second. . 

 ...do.. . 



Second . 







Fifth... 



Sixth. . 

 ...do. . 



enth. 



XI .. 



Third... 





Fifth.... 







XII 



.do. ... 



...do.... 

 ...do 





...do 







XIII 



do 



...do 



...do 





...do... 





XIV... 



do 



...do.... 



...do.... 





...do 



...do.... 

 ...do 





...do... 

 ...do. . 





XV . 



.do. 



...do.... 



...do... 





...do 





XVI... 



Check — un- 



sprayed. 

 do 









■ 











XVII . 







































Table 9. 



-Treatment of plats for codling moth, Smith orchard. Grand Junction, Colo., 

 1917. 



Number 



Spray materials and supplemental control measures. 



Spraying and dusting equipment. 



of plat. 



Calyx spray. 



Cover sprays. 



I 



II 



Arsenate of lead, powder, 1 poimd— 50, and codling 

 moth traps. 



Arsenate of lead, powder, 1 pound — 50 



Spray poles and 

 Bordeaux noz- 

 zles. 



do 



Spray poles and 

 whirlpool-disk 

 nozzles. 

 Do. 



III . 





do 



Do. 



IV 



Arsenate of lead, powder, 1 pound— 50, and nicotine 



sulphate, 40 per cent, h pint— 50. 

 Arsenate of lead, powder, 1 pound — 50, and codling 



moth traps. 

 Arsenate of lead, powder, 1 poimd — 50, and fish-oil 



soap, 2 pounds— 50. 



do 



Do. 



V 



do 



Do. 



VI 



do. . . 



Do. 



VII 



do 



Do. 



VIII. 





do 



Do. 



IX 



do 



do 



Do. 



X . 



...do 



Calyx spray 



omitted. 

 Power dusting 



machine. 

 do 



Do. 



XI 



XII 



Arsenate of lead, 20 per cent, and hydrated Ume, 80 



per cent. 

 Arsenate of lead, 15 per cent, and hydrated lime, 85 



per cent. 

 Arsenate of lead, 10 per cent, and hydrated hme, 90 



per cent. 

 Arsenate of lead, powder, 1 pound — 50 



Power dusting 

 machine. 

 Do. 



XIII. 



do.. 



Do. 



XIV.... 



Spray poles and 

 Bordeaux noz- 

 zles. 



do 



Spray poles and 

 Bordeaux noz- 

 zles. 



Spray gun. 



XV... 



.do 



XVI.... 



Cbfin.lr — nnsprnyerl 





XVII... 



do "...." 















