DUSTING AND SPRAYING CURCULIO AFTER HARVEST. 
11 
The methods used in obtaining results on the effectiveness of the 
different treatments in 1921 were used in 1922. (See fig. 3.) 
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Fig. 3.— After-harvest work, Fort Valley, Ga., 1922. Plat 1, untreated trees; plat 2, sprayed once; plat ! 
4, dusted trees. Solid black circles indicate the jarred trees. 
JARRING BEFORE TREATMENT. 
sprayed tvrice; plat- 
Each plat was jarred twice before either the spray or the dust was 
applied. Table 8 gives the number of beetles caught before treat- 
ment. 
Table 8. — Number of curcv.Uos collected before treatment, 1922. 
Date. 
Platl. 
Plat 2. 
Plat 3. 
Plat 4. 
Aug. 1.... 
Beetles. 
12 
Beetles. 
33 
Beetles. 
Beetles. 
Aug. 2 ...: 
4 
22 
Aug. 3 
16 
33 
Aug. 4 
9 
2S 
Total 
28 
65 
13 
50 
Average per tree 
0.28 
0.66 
0.13 
0.50 
SPRAYING AND DUSTING IN 1922. 
Plat 1 was left untreated throughout the experiment as a check. 
Plat 2 was sprayed August 7, which was about four weeks after the 
latest varieties had been harvested, and nine weeks after the harvest 
of the Uneedas. The materials used were 4 pounds of powdered 
arsenate of lead, 12 pounds of rock lime, and H pounds of calcium 
caseinate to each 200 gallons of water. This plat received only one 
application. 
Plat 3 was sprayed August 8 and August 21 with the same materials 
as used on plat 2. Over a gallon per tree was used for the first 
application, but because of the severe burning and defoliation 
than one-half gallon per tree was used in the second spraying on 
this plat. While the liquid spraying proved satisfactory in killing 
