Planting Suqgqestions 
Getting the most out of sweet corn depends considerably on choos- 
ing hybrids and timing plantings so as best to 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. 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 
Karly 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 3 days and all the MARCROSS you can market in 4 days. This 
furnishes sweet corn for the first week or two of the season. If it is 
wanted for a longer period, make a planting of Carmelcross at the 
same time. If any of the first planting is lost, replant with any yellow 
sweet corn or other crops. One of these plantings on the market ahead 
of the crowd, will more than repay the labor and seed lost on several. 
TO PROVIDE A CONTINUOUS SUPPLY 
For a continuous supply, make at least one planting of SPAN- 
EARWORM CONTROL IN SWEET CORN 
A practical control of ear worms has been worked out. The latest recommenda- 
tions are explained in Circular No. 657 by the Bureau of Entomology, U. S. D. A., 
Washington, D. C. 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 130 Saybolt viscosity at 100° F. It must 
be colorless, harmless to humans and leave no odor or flavor. Oil plus .2% pyrethrins 
gives 80% to 90% control. Oil plus 2% dichloroethyl ether gives equal control at 
lower cost but must be used only in warm weather (above 60° F.) and not less than 
10 days before picking to permit evaporation of ether with its odor and flavor. 
This is applied between the time the silks have wilted and when they are partly 
browned. This is usually between the 5th and 10th days after the silks first appear. 
Too early interferes with pollination and too late misses the worms. The amount to 
apply to each ear is %4 teaspoonful (.75 to 1 ¢.c.). It should be applied 4%4” down in 
the midst of the silks toward the tip of the cob but should not contact the cob. 
Une injection is enough. About 2 gal. of oil are used per acre. 
A pump oiler with a 4” to 6” slender spout, operated by finger lever is the 
equipment to use. There should be an attachment to regulate the amount of oil de- 
livered. If desired, a knapsack tank of oil 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 ears 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 about 1c per dozen ears, sometimes less. This treatment 
is recommended where severe ear worm damage is likely and good prices expected. 
This tratment does not control corn borer. 
Materials and Equipment for Corn Kar Worm Control 
Prices subject to change. 
Mineral oil with .2% pyrethrins; $1.20 qt., $2.10 gal., $8.40 5 gal. 
Mineral oil with 2% dichloroethyl ether, $1.00 qt., $1.90 gal., $8.00 5 gal. 
Above, freight or express collect. Barrel lots quoted on request. 
Pump oiler, 1 pt. capacity, with gauge, $2.45 postage paid. 
Pump oiler, 1 qt. capacity, with gauge, $3.75, postage paid. 
CROSS a few days before the safe date. Then, when it is safe, plant 
at one time equal areas of (1) SPANCROSS, (2) MARCROSS, (8) 
CARMELCROSS, (4) LINCOLN, (5) GOLDEN CROSS, (6) MAGNA- 
GOLD. Then at 5 day intervals, plant more MAGNAGOLD, up to 
90 days before the hoped for date of your last picking. This will 
give throughout the season as continuous a supply as can be ar- 
ranged 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 
whichever late hybrid you prefer up to 90 to 80 days before that last 
picking date. If delayed by weather or if planting after an early 
crop, use Carmeleross or Marcross. They may be planted up to 75 
to 65 days prior to the last picking date. 
OTHER SUGGESTIONS 
These hybrids have the vigor to make fine big crops but they must 
have plant food and moisture. Fertilize liberally. Commercial ferti- 
lizer plowed under is better than shallow applications. A later side 
dressing of nitrate or sulphate often pays. Use every means to con- 
serve the winter and spring accumulation of moisture. Hybrid corns 
must have normal or greater spacing. If your stand is too thick, be 
sure to thin it. This is important. Tests show that suckering and 
topping usually do not pay and sometimes reduce yields. 
Corn borer, earworm and smut can be controlled. See below. 
CORN BORER CONTROL IN SWEET CORNS 
Corn borer can be controlled sufficiently to pay well when the infestation would 
be heavy and prices good. The latest reports include Leaflet 225, U.S. Dept. of 
Agr., Wash., D. C.; Bul. 698, N. Y. Agr. Exp. Sta., Geneva, N. Y,; Circular 147, 
Agr. Exp. Sta., New Haven, Conn. Copies are free on request. 
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 yel- 
low and just before hatching, a black spot appears on each egg. They hatch in 3 to 
7 days from laying. 
Four applications at 5 day intervals are necessary. Timeliness is important. 
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. Other parts do not need protection. 
Materials to use are rotenone, Ist choice; nicotine, 2nd choice. Spray has been 
a little more effective than dust. If applied with hand equipment, dusting is easier. 
For latest formulae using available materials write us about April Ist. 
These treatments will not control earworm. 
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. 
SMUT CONTROL IN SWEET CORN 
New Jersey entomologists Haenseler and Pepper have discovered that smut on 
sweet corn is 75% to 80% controllable by the same materials that control corn borer. 
Smut control may not pay generally but it would be an added inducement to controi 
borers where they are troublesome, and on certain early hybrids smut control would 
pay in most years. See Plant Disease Notes Vol. 21, No. 5, N. J. Exp. Station, 
New Brunswick, N. J. 
MATERIALS & EQUIPMENT FOR BORER & SMUT CONTROL 
List of recommended materials and equipment available this season will be 
ready April Ist. 7 
