LETTUCE 
Lettuce should be grown quickly and requires fertile soil. On 
soils with pH above 6.0 it may be desirable to add boron. In areas 
where aster yellows may be a problem, DDT or its equivalent is 
helpful in limiting the spread of the disease by controlling the 
leaf hoppers that carry it. 
Variety Days Head Type Leaf Type Leaf Color Remarks 
Bibb Nene ee ME ee 60 small butterhead thick, smooth deep green For forcing or first-early. 
DarkiGrecn GOSmaa ener 64 cylindrical slight crumple dark green 7-8” high: self-closing. 
PiltelMuower COs mite 75 cylindrical long, folded medium green 12-13”; compact. 
Grand apldsua ree 43 loose leaf wavy, fringed light green For forcing or greenhouse. 
Great Wakesi oe 78 solid, flattened, large smooth, frilled gray green See below. 
Greaticakesslsl.S sane 83 solid, large thick, glossy dark green See below. 
Imperial 456 (Cornell 456) 81 solid, medium large smooth, frilled light green See below. : 
Mala Kcln cane 63 small butterhead crumpled, frilled yellow green, Buttery flavor, scorches easily. 
brown at edges 
ING Wa VOrke NOs) 5. iS solid, round, compact crumpled bright green Small head, early. 
Parris Island Cos ...... 70 cylindrical slight crumple dark green See below. 
Pennlakev igen ee Til solid, large crumpled; notsoribby dark green See below. } 
Premier Great Lakes 79 solid, round, large smooth, not ruffled dark green Heat-resistant; slow bolting. 
PEO SLESS eae ae eee 77 solid, compact thick, savoyed dark green Good tipburn resistance. 
Salad Bowl Ree aes 45 loose leaf deeply notched light green Very slow bolting. 
Simpson’s Curled (b.s.) . . 46 loose leaf crumpled, frilled light green For local market. 
WihitesBostonia eae 72. butterhead smooth, wavy light green Fanciest of Boston types. 
White Paris Cos 66 cylindrical smooth, concave medium green 9-10” high, compact, crisp. 
GREAT LAKES 118. When Great Lakes 
was introduced several years ago, it won 
rapid recognition among the heading types 
for its wide adaptation, slowness to bolt 
and resistance to tipburn. Great Lakes 118 
is an ASGROW strain which has been care- 
fully and continually selected for uni- 
formity of size and type, with pleasing, 
lustrous, dark green exterior. The dark, 
upright wrapper leaves give good protec- 
tion to the large, well-formed heads. 
Imperial 456 
GREAT LAKES 59. An earlier, somewhat 
smaller strain of the Great Lakes type. 
The wrapper leaves lie back, exposing the 
attractive, large, round, slightly flattened 
head at market stage. The color is lighter 
than regular Great Lakes; the leaves are 
smoother and much less frilled at the 
edges. Great Lakes 59 is uniform in ma- 
turity and its resistance to tipburn has 
made it desirable for spring planting in 
the North and East. 
IMPERIAL 456. Sometimes called Cornell 
456: introduced by the U.S.D.A. and Cor- 
nell University. Adapted for summer har- 
vest in the Northeast on both muck and 
heavy upland soils. Imperial 456 is very 
slow to bolt and is resistant to tipburn. 
The heads are solid and slightly smaller 
than Great Lakes. 
PARRIS ISLAND COS. A new, mosaic-re- 
sistant romaine lettuce, resembling Dark 
Green Cos, though slightly lighter in shade. 
Developed at Charleston, S.C., for use in 
the coastal area of that state, Parris Island 
should prove valuable in other areas 
where mosaic is a problem. The leaves 
may lack some of the quality of Dark 
Green Cos, being somewhat more leath- 
ery, but for growers troubled with mo- 
saic, this factor will be more than out- 
weighed by its disease resistance. 
PENNLAKE. Recently introduced by Penn- 
sylvania State College, combines the so- 
lidity and tipburn resistance of Great 
Lakes with the larger head size of Im- 
perial 847. Of Great Lakes type, with 
crisp, dark green smooth leaves, but with- 
out the ribbiness often found in that 
variety. Notably uniform; matures a high 
percentage of heads for first cutting. Tol- 
erant of heat and resistant to tipburn 
when grown as an early summer crop. 
Parris Island Cos 
