138 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
at picking time, was taken into account and classified as to injury or 
otherwise. Also the work of the two broods of the codling moth was 
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 
larve would be in no wise interfered with. 
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PLAT IL. 
(OWE SPRAY) 
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PLAT AT. 
(COEMONSTRATION) 
PLAT TI. 
(CHECK) 
Fia. 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. 
The treatments given and dates of application are indicated in 
Table XIX. 
TaBLE XIX.—Dates of applications for the codling moth and plum curculio, one-spray 
method. Saugatuck, Mich., 1909. 
Plat T. 
Date of application. (Unsprayed.) 
Plat II. (Demonstration.) | Plat III. (One-spray method.) 
First application (before | Unsprayed....| Not drenched. Vermorel noz- | Drenched. Bordeaux nozzles. 
blossoms opened), zles. Mist spray. Bordeaux Coarse spray. Bordeaux mix- 
May 20-21. mixture (4~-4-50). ture (4-4-50). 
Second application, |..... do.........| Not drenched. Vermorel noz- | Drenched. Bordeaux nozzles. 
June 3-9, after falling zles. Mistspray. Arsenate Coarse spray. Arsenate of 
of petals. of lead, 2 pounds to 50 gal- jead, 1 pound to 50 gallons 
lons Bordeaux mixture water. Pressure, 175 to 200 
(4-4-50). Pressure, 125 pounds. 
pounds. 
Third application, June |..... 0 Co pies ey S| Me a (oY oR APE Ws STA oe Ae SAE tes ot Bordeaux. mixture only (4-4— 
21-22. 50). June 10-11 and again 
June 21-22. 
Fourth application, |..... GO sese need |eriees GOs ee eh aie Baan « scenes Bordeaux mixture only (4-4- 
August 7-9. 50). 
