June, 1955 Curt: Oak WI tt INOCULA 313 
Table 17.—Average number per mat sample* and per cent germination of conidia taken from 
mycelial mats of Endoconidiophora fagacearum in five condition classes} in five study areas in 
the 10-month period October, 1952, through July, 1953. 
Crass I | Crass II Crass III | Crass IV Crass V 
Srupy Salen: = ie ee |e en eo |e tes al cee |hge Seal eos 
ArEA |24 29 |§ v8 & 29 |$2\8 8 BS Swas 295 ($22 s/25\8 2 
G2) Ea lae|5=| So loeiS2| Sa |e e|S=) Eo |oa/8=| bales 
Zool Ao |mMriZ6| Ao IseiA 6) Zs SE iAol 26 IAPIZ sas las 
Chicago. ..| 11 |144,782) 51 | 16 |129,156] 19 | 9 | 67,956] 7 14 | 19,643) 1 | 26 923) 15 
Sinnissippi.| 12 |335,842| 49 | 14 |326,421) 10 | 17 |371,097| 12 | 24 | 74,288} 3 | 12 |4,442) 0 
Rockford. .| 14 |500,011} 51 | 17 |839,371| 10 | 24 |281,083} 9 | 48 |117,778] 3 | 46 |2,065| Oo 
Peoria.....| 20 |289,698) 51 | 11 |371,009| 33 | 19 /421,158/ 20 | 16 | 56,438) 5 | 28 
Havana... .| 15 |481,860| 53) 5 /343,180| 18 | 11 |322,227/ 12 | 21 | 653252] 2/15] of — 
* Figures are calculated averages. 
+ Condition class I, immature; II, mature; IJI, aging; IV, declining; V, deteriorating. 
OCTOBER 
NOVEMBER 
DECEMBER 
JANUARY 
FEBRUARY 
MARCH 
APRIL 
MAY 
JUNE 
O 10 20 30 40 
PER CENT GERMINATION 
Fig. 20.—Average per cent germination of conidia of Endoconidiophora fagacearum taken 
from mycelial mats, October, 1952, through June, 1953. 
