Planet Jr. 
Made M 
The Cabbage Maggot 
Control of tlte Magoot in U mushes. 
The writer carried nut. an experiment 
last Spring' on radishes for the control of 
the maggot with corrosive sublimate, 1 to 
1,000, with fine results. I treated one- 
half of the radishes on May 7. just as the 
plants had conn* above ground, and again 
on May 15. When harvested the untreated 
plants showed nearly ‘JO per cent injured 
seriously by the maggots, while the treated 
plants gave perfect radishes, not one in¬ 
jured by maggots. In other words, the 
treatment was 100 per cent effective. An 
experimenter hesitates to record a rem¬ 
edial agent as perfect, and I should not 
expect corrosive sublimate to he a perfect 
remedy for this maggot in every instance, 
but I am obliged to record the facts as I 
found them in this experiment, .1. ,T. 
Davis, in Indiana, reports that one ap¬ 
plication of corrosive sublimate, used at 
the rate of 1 ounce in 10 gallons of water, 
gave 05 to '.Hi per cent good plants, while 
untreated rows showed from 82 to 00 per 
cent injured radishes. Similar results 
have been reported by workers in Canada, 
so that we now feel justified in recom¬ 
mending corrosive sublimate for the con¬ 
trol of the cabbage maggot in radishes. 
Control of the Maggot on Fault 
Cahkaokh,- —Here again experiments in 
Canada and later in the 1 'nitod States 
have shown that corrosive sublimate is 
an effective control material for the mag¬ 
got rui cabbages. In the college vegetable 
gardens the effectiveness of this material 
was Clearly demonstrated last Spring. 
The rather large areas of early cabbages 
grown by the department were treated 
once just after the plants \ver»* set in 
the field and again one week later with 
corrosive sublimate diluted at the rate of 
one ounce to eight gallons of water. 
Closely adjoining plots of cabbages set on 
the same date were not treated with any¬ 
thing and served us checks. Spare is too 
limited to give details here, but careful 
examination and count of the plants in 
•Tilly showed that, the treated plants bad 
made an almost perfect stand, and that 
only hero and there could be. defected a 
plant which may have been attacked by 
the maggot and somewhat stunted. Wo 
estimated that fill to OS per cent of the 
• lants in these treated plots had been 
protected from injury by the maggot, aud 
that those plants which showed some sign 
of injury were not severely damaged. 
The plants in the check plots, which were 
equally well cared for and thoroughly cul¬ 
tivated. showed a high per cent of stunted, 
scrubby plants produced by the attacks 
of the maggot, ns shown by an examina¬ 
tion of the root system, and also a large 
proportion of plants killed outright by 
the insert. On the average, JO per cent 
of the plants in these plots by actual 
count bad either been killed outright, or 
were so stunted and deformed that they 
were worthless. In some of the rows as 
high as 81 to 8S per cent of the plants 
had either been killed or stunted beyond 
recovery. These results are substantiated 
bv the results obtained in Xovu Seotiu. 
in the provinces of Ottawa and Ontario, 
Canada, and in the Srate of Indiana. In 
the localities cited, treatment with cor¬ 
rosive sublimate gave from 04 to OS per 
cent of the plants free from injury, while 
the untreated areas showed all the way 
from 20 to SO per cent of the plants de¬ 
stroyed by the maggots. 
How and Wit bn to Apply Corrosive 
ftcm.i Mate. —Corrosive soldimatc should 
be used at the rate of one part to 1,000 
parts of water, which means at the rate of 
one ounce of the powder to eight gallons 
of water. Splendid success has been ob¬ 
tained. however, by using it at tlte rate 
of one ounce to 10 gallons of water. The 
powder should first be dissolved in hot 
water, say six ounces in two gallons, in 
an earthen jar. which will be enough for 
a barrel ,.f water 14S gallons). In the 
case of radishes the solution may he 
poured directly on the plants as soon as 
they come nicely through tho ground from 
a common garden sprinkler from which 
the sprinkling device (rose) has been re¬ 
moved. The Opening in the spout should 
he partly closed with a wooden plug to 
prevent the liquid from flowing out too 
rapidly. One gallon should treat a row 
of plants from 80 to 10 feet long. For 
cabbages on large areas wooden tubs full 
of the solution may be placed at intervals 
throughout the field as sources of supply. 
About one-half a teacupful should be 
poured directly from the sprinkler i>u the 
soil at the base, of each plant. If desired, 
wooden pails may be used and the liquid 
poured about each plant by means of uu 
ordinary dipper. One man after a little 
practice, ought to treat from 800 to 500 
plants per hour, fine thousand plants 
should receive about 80 gallons of the 
solution, or about 210 Minns per acre 
of 7,000 plants. The cost of two treat¬ 
ments can be estimated from these figures. 
It would probably be best to make two 
treatments, the first one as soon as the 
plants are set in the field, and the second 
about, one week thereafter. In the ease 
of severe infestations it may be necessary 
to make three applications. 
GLENN' W. HERRICK. 
Kills Weeds—Pulverizes the Soil 
One sure way to increase the yield and profit per 
acre, and at the same time reduce the cost of pro¬ 
ducing crops, per bushel or per ton, is to kill the 
weeds and make better seed beds—a combination 
of advantages secured by using the 
JOHN DEERE 
CVD A I TOC SPRINGTOOTH 
O I IvAC UoEi HARROW 
Using this harrow before front, growing wider toward 
planting is worth two culti- rear—no loading or choking 
vations afterward. at this point- Trash works 
The teeth are designed for toward the center and out 
proper penetration. You through this opening, 
can force them into the Teeth can be instantly ad- 
ground to any depth de- justed by means of conven- 
sired. They kill the weeds, ient levers to meet different 
stir and mix the soil thor- soil conditions. Reversible 
oughly, and leave it finely levers—may be shifted to 
pulverized. In this condi- operate from front of har- 
tion, the soil warms quickly, row when tractor is used, 
insuring rapid seed germina- Any number of sections 
tion and steady plant growth. can be combined, and a spe- 
Non-CIogging —the cial hitch adapts this tool to 
frame has small opening at tractor use. 
Your John Deere dealer has a supply of Syracuse Spring- 
ToothHarro ws on hand. Be sure to see them. Write us 
for a folder. It’s free for the asking. Address John 
Deere, Moline, Illinois, and ask for Booklet TH-737, 
Cabbage Maggot Fly (Enlarged) 
Origin and Injuries of Cabjjage 
Maggot. —The cabbage maggot is' the 
larva of a small brown fly (above) 
slightly smaller bodied than an average 
housefly. The flies, which pass the Winter 
as brown barrel-like objects in the soil, 
called puparia, appear in the Spring and 
deposit their white eggs in late May and 
early June here in central New York on 
the ground at the ha-on 'of the plants. 
The eggs batch in a few days and the 
small white maggots (below) burrow 
through radishes, causing them to remain 
Stunted, turn black inside and perhaps 
decay. On cabbages the maggots eat into 
the roots of the plants, often girdling aud 
stunting them, and in severe infestation- 
killing the plants outright. Experiments 
begun and carried on during recent years 
Syracuse high car¬ 
bon steel tooth 
clipped to the tooth 
bar—easily adjust¬ 
ed for wear—no bol t 
holes to weaken it. 
Farm implements 
are your cheapest 
investment. The 
University of Mis¬ 
souri found the im¬ 
plement cost of pro¬ 
ducing a crop of com 
last year to be only 
one-ninth the total 
production cost per 
acre. Baaed on this 
year's prices, the 
cost will be only 
one-thirteenth. 
DEERE 
Cabbage Maggot (Enlarged ) 
in Nova Scotia and in other parts of Can¬ 
ada. and later in various regions of the 
United States, have demonstrated that 
corrosive sublimate in dilution in water 
forms a simple, reasonably economical, 
and highly effective control material for 
this insect. 
What Corrosive Sublimate Is.— 
Corrosive sublimate (mercuric chloride) 
is a fine, white, heavy power which, when 
taken in large doses by human beings, 
produces all the effects of a violent, cor¬ 
rosive poison—nausea, vomiting, convul¬ 
sions, and death. It should therefore be 
stored in plainly labeled containers aud 
Keep the kitchen 
garden growing 
When plowing, planting and early harvesting are press¬ 
ing, a Planet Jr. No. 17 Single Wheel Iloe is a.life-saver 
for the kitchen garden. Half-an-hour a day with this light, 
strong, quick-working lioe and cultivator keeps your veg¬ 
etable patch flourishing and free of weeds. When man- 
S l, a woman or boy can easily 
work with a No. 17 , so easily 
it run. Soon pays for itself in 
I: saves. 
>ur copy of the Planet Jr. catalog, showing 
more than 55 Planet Jr. seeders, wheel 
hoes, one-horse and riding cultivators, etc. 
S. L. ALLEN & CO., Inc. 
Dept. 38 
5th & Glenwood Avenue PHILA. 
Get a WITTE First 
Have an engine or outfit you can depend on 
pay only the factory price plus my one small profit. J} 
2 H-P. was *59 — NOW $39.95 6 *J 
6 H-P. was 180-NOW 119.90 
12 H-P. was 352 - NOW 249.00 
30 H-P. was 1091—NOW 699.80 
All Prlca* P. O. B. *•*••• City. iHj j f' I 
Carload tel - added when shipped from PiLUburKh. 
Prices $20 to $400 Less 
Latent Model Log Haw only 174.00 —Buie g > j ' M I / / 4- 
Saw $tiS— Branch Saw *19.90—Portable 
Saw-Rig *1-17.50 Anything you wantato 
big aaving. Cash or Terms, tn;.^-' - , Mill A 
eluding new Power Stump y' X 
Radishes Stunted and Decaying Inside as 
Result of Attack by Maggot 
placed’ where children will not gain access 
to it. It does not lose its effective quali¬ 
ties when exposed to the air, and therefore 
docs not deteriorate in storage. It dis¬ 
solves slowly and with Home difficulty in 
cold water, but quite readily in hot water. 
It tends to corrode metals and it is there¬ 
fore necessary to use glass, earthenware, 
or wooden vessels in the preparation and 
storage of the diluted solution for use in 
field operations. Corrosive sublimate may 
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built.good engine* for 3*1 years. 
Get your rig. ull complete, 
ready to ntart uning. Nouxtra* 
to buy. no- l>i»y Test, LUe- 
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W \VrIte For Catalog 
Be uurc to tell rue just what Iciud of a 
power outBtyou m- -d, thin 1 ran quote 
ron my lowest cash price for immediate shipment. Ad- 
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WITTE ENGINE WORKS 
*93 Oakland Ave, Kansas City, Mo. 
893 Empire Bldn-, I*ltl»tmrgH, Pa. 
Gasoline 
