62 



BULLETIN 903, U. 



DEPAETAIEXT OE AGEICULTUEE. 



Table XIII. — Incubation and development of radicicole of the grape phylloxera 

 on living vine*. Walnut Creek, Calif- 1913-1915 — Continued. 

 SIXTH GENERATION, 1914. 



Indi- 



v: iuii 



No. 



Date Da r e 

 egg de- egg 



- :>5~i:ed. hatched. 



Incuba- 



Date 



1 



Grovring period of 



' . n ,v _Z T 1 - . tin. 



SEk. Period: develop- 



period. 



..- . . . . . a venose 



^ anetr oi vme and ~r Q J;* * 

 numberofcage. ■;-; ;.•_' .;" 



1 May 29 



June « 

 June 8 



.Dat/s. 



9 June 24 

 6 July 1 



10 JulT 10 



11 JulT 26 



Daus. 



17 

 23 

 21 

 36 



Dags. 



26 

 29 

 31 

 47 



MnsratTXA 



° F '„ 



2 1 June 2 





68 



3 Jiine 9 



- LXA 



69 



4 ...do 



June 20 



do 



69 



SEVENTH GENERATION. 1914 



1 



2 

 3 



June 24 

 ...do 



T ■ :: ■• 

 ...do 



June 26 

 ...do 



JuIt 1 



JuIt 2 



...do 



.JulT 3 

 ...do 



JulT 3 

 JuIt 4 

 JulT 3 

 July 4 



...do 



...do 



JulT 9 



JulT 11 



...do 



...do 



...do 



9 



: 



8 

 9 



8 

 9 

 9 



8 



Julv 23 



JuIt 29 

 JulT 23 

 JuIt 30 

 JulT 25 

 JulT 30 

 JulT 29 



...do 

 Aus. 1 

 Aus. 3 



...do 



20 

 25 

 20 



26 

 24 



26 



20 

 IS 

 21 

 23 

 23 



29 

 35 

 28 



35 

 32 

 34 

 25 

 27 

 30 

 31 

 31 



Muscat IXA 



do 



do 



7n 



n 



70 



4 

 5 

 6 



do 



do 



do 



Rrpnafhe TT A 



71 



71 

 71 

 72 



8 



do 



72 



9 



10 



11 



do 



do 



do 



72 

 72 



72 









EIGHTH GENERATION. 1914-15. 



1 



2 



Aug. 17 

 ...do.... 

 ...do 

 ...do.... 



...do 



...do.... 

 ...do.... 

 ...do.... 

 ...do.... 



Aug. 24 



...do 



Aus. 2-5 



...do 



...do 



...do 



...do 



...do 



Aus. 26 



S 



S 

 S 



s 



9 



Sent. 15 

 ...do 

 - 



Mar. 26 

 Mar. 30 

 Apr. 3 

 Aor. 4 

 (-) 



23 

 23 

 32 

 213 

 217 

 221 

 ... 



3D 

 SO 

 40 

 221 

 225 

 229 

 230 



Muscat XXX 



do 



70 

 70 



3 



do 



69 



4 

 •5 

 6 



do 



do 



do 



s 72 

 3 72 



3 7° 





do 



3 79 



s 



9 



do 



do 



■- 72 

 3 72 



NINTH GENERATION, 1914-1; 



1 Sept. 16 | Sent. 27 



2 ...do ...do 



11 L - 

 11 Apr. 11 



M is f XIX. 

 do 



NINTH GENERATION, 1915. 



1 



Mar. 



31 



A-or. 19 i 



19 



MaT 22 



33 



2 



...do. 





..do ' : 



19 



MaT 23 



34 



3 



...do. 





...do 



19 



May 24 



35 



4 



...do. 





...do 



19 



May 25 



36 



52 CarisnanXXIX. 



53 do 



54 do 



55 do 



TENTH GENERATION, 1915. 



1 MaT 23 June 



2 MaV 27 J a< 



32 Carisr^n XXIX... 

 35 Zinfandel XXLHA. 



ELEVENTH GENERATION. 191; 



1 i JulT 



2 



3 



9 



July 15 ! 



6 Aue. 10 



JuIt 29 



do 



25 



: : _ 



Ziniandel XXEHA | 



I 



73 









TWELFTH C 



FENERATION, 191- 







1 



3 



4 



Aus. 2 



...do 



...do 

 Aug. 4 

 Am;. 16 

 ...do 

 Aus. 17 

 A :g. IS 

 Aus. 19 



Aus. 9 

 Aus. 10 

 Aug. 9 

 Aug. 11 

 Aug. 24 

 Aug. 21 



...do 

 Aus. 27 



...do 



7 Sept. S 



8 Sept. 9 

 7 Sent. 10 



7 ...do 



S 



9 



s : 



9 : 



■ 



30 

 32 



30 



37 

 35 

 39 

 37 



Ziniandel XXXYT 



do 



do 



do 



72 

 72 

 72 

 72 





ZiTifandpl XXHIA. 





6 



7 

 S 

 9 



do 



do 



do. 



do 





Indicates aTerase temperature of incubation period alone- 



Died. 1915. 



