138 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
carefully separated by removing from the trees at the period of 
maximum maturation of the first-brood larvee all fruit injured by the 
first brood, thus eliminating entirely from later counts first-brood 
work. The infested apples, however, were placed on the ground 
under the respective trees, so that development of second-brood 
larvee would be in no wise interfered with. 
The treatments given and dates of application are indicated in 
Table XVI. 
DDD 
WW DOLD 
WWW DADA P, 
wwwwwww wD o o 
wwwwBOOw wBo 0®g 
WWWWWWWWWWOO OD 
ww ww w wQD@OD o@Bo vo v 
WWD ® 1 B® ov 0 vd b 
WW wo@Doo00e@o vo 
W W WD DID DDD ae 
imc 1Q@ s o@o 
WowwOBo oo ov 
wwWDMw oo ov 
wwWwwww oOB 
w@®w o 
aD 
Da 
D 
D 
D 
PLATA 
(OWE SPRAY) 
FLAT TE, 
(OEMONSTRATION) 
PLATED, 
(CHECK) 
Fig. 37.—Diagram illustrating arrangement of plats and position of trees in the E. H. House orchard, near 
Saugatuck, Mich.: D, Ben Davis; B, Baldwin; W, Wagener. Count trees are indicated by circles, the 
numbers agreeing with those in the tables. (Original.) : 
Tasie XVI.—Dates of applications for the codling moth and plum curculio, one- spray 
method. Saugatuck, Mich., 1909. 
Plat I. 
Dates of applications. (Unsprayed.) 
Plat Il. (Demonstration. ) Plat III. (One-spray method.) 
| 
First application (before | Unsprayed....| Not drenched. Vermorel noz- | Drenched. Bordeaux nozzles. 
blossoms opened), zles. Mist spray. Bordeaux Coarsespray. Bordeaux mix- 
May 20-21. mixture (4-4-50). ture (4-4-50). 
Second application, |..... 6206 eee Not drenched. Vermorel noz- | Drenched. Bordeaux nozzles. 
June 3-9, after falling zles. Mist spray. Arsenate Coarse spray. Arsenate of 
of petals. of lead, 2 pounds to 50 gal- lead, 1 pound to 50 gallons 
lons Bordeaux mixture water. Pressure, 175 to 200 
(4-4-50). Pressure, 125 pounds. 
pounds. 
Third application, June |..... done -2 ECOL Cis GS awe tas Suis Pee Bordeaux mixture only (4-4 
21-22. 50). June 10-11 and again 
June 21-22. 
Fourth application, |....-. Goetes sa5| Soaks Oe sc ant wep eo eee Bordeaux mixture only (4-4 
August 7-9. 50). 
