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nozzles have to be used. This requires more material and more 
frequent filling, hence a proportionally less acreage is treated per day. 
For the large rank cotton of the river bottoms the nozzles must be 
adjusted to spray from the ground to the top of the plant. When cot- 
ton gets to be 5 or 6 feet high a long slender pole or iron pipe should 
be run in behind the whiflletree chains in front of the machine and 
crosswise of the rows. This catches the tops of the cotton and bends 
the plants over so that they are sprayed perfectly from underneath 
and for their entire length on stems and branches, as well as on the 
young growing tips, where the weevils are most plentiful. 
LAYING OFF THE ROWS. 
In order that the greatest success may be achieved with spraying 
operations, it is of prime importance that the rows should be laid off 
regularly and equal distances apart. This will be evident when it is 
remembered that a number of rows are sprayed at one time. If the 
nozzles are adjusted to spray rows thoroughly at a certain distance, it 
is evident that rows nearer together or farther apart can not be so well 
sprayed unless another adjustment of the nozzles ismade. It is imma- 
terial how great or small the distance between the rows may be, pro- 
vided that distance be maintained uniformly throughout. 
INGREDIENTS OF SPRAY. 
The ingredients of the spraying solution should be mixed in propor- 
tions suited to the season and the conditions. In spring, before squares 
are formed, the weather is cooler and there is little danger of injury to 
the plant. Then, too, the exposed surface is smaller and a sweeter solu- 
tion has been found to be desirable. Especially is this true for the 
trap rows. The proportions best suited for the trap rows and the first 
one or two sprayings of the main crop until squares begin forming, 
also for the later spraying of the main crop, are given below: 
Trap-row formula. 
2 gallons cane or sorghum molasses. 
2 ounces arsenic (90 per cent) boiled in a gallon of water until dissolved. 
4 ounces arsenate of lead or disparene dissolved in a gallon of water 
46 gallons of water. Mix thoroughly. 
Main-crop or midsimmer formula, 
To be used on main crop as soon as squares are forming freely. 
1 gallon cane or sorghum molasses. 
1 ounce arsenic (90 per cent) boiled in a gallon of water until dissolved. 
6 ounces arsenate of lead or disparene dissolved in a gallon of water. 
47 gallons of water. Mix well. 
The free arsenic is a dangerous poison to use on cotton when the 
plant begins setting squares, for the reason that its penetrating, scorch- 
