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Planting Suqgqestions 
Getting the most out of sweet corn depends considerably on choos- 
ing hybrids and timing plantings so as to best meet one’s particular 
situation. For instance, home gardeners, roadside stand gardeners 
and some — but not all — market gardeners, should plant hybrids 
that will provide a continuous harvest from the earliest date possible 
to the very last of the season. Canners find it better to include 
hybrids that are earlier than the main crop, in order to lengthen the 
harvesting period and lessen weather risks. Some also use earlier 
maturing hybrids, when weather or other conditions necessitate plant- 
ings later than are safe for the main crop. For some markets, only 
the earliest possible corns pay well; for others the latest; and for 
some, there are in-between periods when prices are usually highest. 
Our series of hybrids, ripening at intervals helps you plant to 
meet your market requirements. Note that the later hybrids, in gen- 
eral, yield more and better corn and so should be used in preference to 
the early ones when time permits. 
AIMING FOR THE EARLY MARKETS 
Early market prices usually are highest. To make the most of 
them, we suggest one or two small successive plantings of SPAN- 
CROSS, before weather conditions are quite safe. Select early ground. 
Use our treated seed. Do not plant too deeply. Then when conditions 
are safe, plant at one time, all the SPANCROSS you can pick and 
sell in 4 days and all the MARCROSS you can market in 6 days. This 
furnishes sweet corn for the first two weeks of the season. If it is 
wanted for a longer period, one or two plantings of Carmelcross should 
be made. If any of the first planting is lost, replant with any yellow 
sweet corn or other crop: One of these plantings on the market ahead 
of the crowd, will more than repay the labor and seed lost on several. 
EARWORM CONTROL IN SWEET CORN 
A practical control of earworms has been worked out. It is described in a re- 
vised edition of Circ. E476 by the Bureau of Entomology, U. S. D. A., Washington, © 
D. C. and by L. A. Carruth in Cire. 190 of the N. Y. S. Agr. Exp. Station, Geneva, 
N. Y. Copies are free on request. 
The treatment is an injection of an oil mixture into the tips of the ears. Simple 
enough but the following details are important :— 
The oil must be a mineral oil of about 200 Saybolt viscosity at 100° F. It must 
be colorless, harmless to humans and leave no odor or flavor. Oil alone gives about 
60% control. Oil plus .2% pyrethrins gives about 75% control at higher cost. Oil 
plus 2% dichloroethyl ether gives about 90% control at low cost but must be used 
only in warm weather (about 65° F.) and not less than 10 days before picking to 
permit evaporation of ether with its odor and flavor. 
This is applied after the silks have been pollinated and have become wilted, us- 
ually from the third to the fifth day after the silks first appear. This calls for ex- 
perience. Too early interferes with pollination and too late misses the worms. The 
amount to apply to each ear is 1/6 to 1/4 teaspoon (1/2 to 1 cubic centimeter). It 
should be applied 1/2” down in the midst of the silks, in the tip cf the ear, toward 
the cob. One injection is enough. About 2 gal. of oil are used per acre. 
A pressure oiler with a 6” to 8” slender spout, operated by a thumb or finger 
lever, is the equipment to use. An adjustable set screw can be attached to regulate 
the amount of oil delivered. If desired, a knapsack tank of oi] can be connected 
with the oiler by a rubber hose to save time in refilling. For this a nipple must be 
soldered into the oiler, for attaching the hose. 
With hybrids usually 50 to 80% of the corn can be treated the first time through 
and the balance the second time. More trips are necessary when development is 
uneven. After experience, one can treat 1500 to 2000 ears per hour or an acre in 5: to 
8 hours. Costs total less than Ic per dozen ears, sometimes Yc. This treatment is 
recommended when severe ear worm damage is likely and good prices expected. 
This treatment does not control corn borer. 
Materials and Equipment for Corn Ear Worm Control 
All F. O. B. here or nearest factory. Shipped freight or express collect. 
Mineral oil, 200 viscosity, $1.00 per qt., $2.00 per gal., $7.50 per 5 gal. 
Mineral oil with .2% pyrethrins; $1.00 per qt., $2.00 per gal., $8.75 per 5 gal. 
Mineral oil with 2% dichloroethyl ether, $1.00 per qt., $2.00 per gal., $7.50 per 
5 gal. 
Barrel lots quoted on request. 
Pump oiler, 6 0z. capacity, treats 250 ears, $2.00. 
Knapsack and pump oiler, 1 gal. capacity, treats 5000 ears, $6.00. 
TO PROVIDE A CONTINUOUS SUPPLY 
For a continuous supply, make at least one planting of SPAN- 
CROSS a few days before the safe date. Then, when it is safe, plant 
at one time equal areas of (1) SPANCROSS, (2) MARCROSS, (3) 
CARMELCROSS, (4) QUAKER HILL XL. After 5 days, plant equal 
areas of CARMELCROSS and QUAKER HILL XL. After 5 days 
more, plant again equal areas of CARMELCROSS and QUAKER 
HILL XL. Then at 5 day intervals, plant more XL up to 80 days be- 
fore your fall frost date. This will give for 50 days or more, as con- 
tinuous a supply as can be arranged of quality corn that will win and 
hold your customers. 
AIMING FOR THE LATE MARKETS 
If your late markets are extra good, make several plantings of 
QUAKER HILL XL or GOLDEN CROSS, 100 to 80 days before the 
fall freezing date, or late plantings of CARMELCROSS or MAR- - 
CROSS, 80 to 60 days before that date. 
OTHER SUGGESTIONS 
These hybrids have the vigor to make fine big crops but they must 
have plant ‘food and moisture. Fertilize liberally. Apply commercial 
fertilizer as nearly as possible, 2 inches from the seed and on the same 
or a Slightly lower level. A later side dressing of nitrate or sulphate 
often pays. Use every means to conserve the winter and spring ac- 
cumulation of moisture. Hybrid corns must have normal or greater 
spacing. If your stand is too thick, be sure to thin it. This is impor- 
tant. Tests show that suckering and topping corn reduce yields. 
Corn borer and earworm can be controlled. See below. 
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CORN BORER CONTROL IN SWEET CORN be 
Sweet corn growers can prevent considerable borer damage by spraying or dust- 
ing when the newly hatched worms begin to feed and before they bore into the stalks © 
or ears. In 9 trials in Connecticut, treatments gave 80% borer free ears, compared 
with 48% borer free without treatment. Circular 130, Agricultural Experiment Sta- 
tion, New Haven, Conn. “ 
Where borer is most damaging, there are two broods of the borer, the first ap- 
pearing some time between May Ist and June 15th, depending on location and sea- 
son, the second between August Ist and September 15th. Im other sections, there is 
only one brood and usually little damage. 
Spraying or dusting should begin as soon as the eggs start hatching. The county 
agricultural agent can give the dates, or the masses of overlapping pinhead like 
white eggs laid on the undersides of corn or weed leaves may be watched. They turn 
yellow and just before hatching, a black spot appears on each egg. They hatch in 
7 to 10 days from laying. 2 
Four or five applications at 5 or 6 day intervals are necessary. 
The materials must be applied in the narrow spaces between the leaf sheaths and 
the stalks, first in the developing whorls, then in individual leaves and tillers and 
finally on all parts of the developing ears. : 
Kmapsack dusters or sprayers are recommended. ; 
Dusting is simpler and easier than spraying and equally effective. “Dual-fixed 
nicotine’ dust is the material to dust with. It is not the nicotine dust used for 
aphids. This material is ready to apply as purchased. Use 35 Ibs. per acre per 
application. { 
For spraying directions send for Circular 130, Conn. Agr. Exp. Station, New 
Haven, Conn. or consult your county agricultural agent. ‘ 
Timeliness and thoroness are important. Watch for the egg masses. Consult 
your county agent. ‘ : 
These treatments will not control earworms. i ‘ 
In the over wintering stage, many borers can be killed by feeding, making into 
silage, plowing under thoroly or burning all corn stalks, ears and cobs as far ahead 
of corn planting time as possible. 
Materials and Equipment for Corn Borer Control 
All F. O. B. here or nearest factory. Shipped freight or express collect. 
Dual-fixed nicotine dust; $16.50 per cwt; $1.00 per 5 lbs. ~ i eter 
American Beauty Duster (knapsack, bellows type, durable and efficient) $22.00. 
Brown Crystal Duster (suitable only for gardens) $1.25. se ae 


