PENNSYLVANIA STATE TOMATO 
SEED CERTIFICATION REQUIREMENTS 
Inspection of Landreths’ Pennsyl¬ 
vania Certified Marglobe 
Inspector Lauer (left) of Pa. Dept, of 
Agriculture, and Dr. Mack (right) of 
Penn State College are seen with Jack 
Tomlinson, an expert tomato grower. 
Jack is never interested in a crop 
unless it produces 15 to 20 tons per 
acre. And he gets them! 
TOMATO STOCK SEED 
Before any variety can even be entered for 
certification in Pennsylvania, stock seed 
from carefully selected and staked plants 
must be saved the year previous to certifi¬ 
cation. D. Landreth Seed Co. goes further 
than that as shown by the previous pages, 
as our stock seed is saved from carefully 
staked plants at least two years previous to 
certification , and seed from those staked 
plants proved by test a year in advance of 
certification. Only the very best tested 
strains are used for growing our fields for 
certification. 
FIELD INSPECTIONS 
Advanced Plant Pathologist K. W. Lauer, 
of the Bureau of Plant Industry, Depart¬ 
ment of Agriculture, Harrisburg, Pa., accom¬ 
panied by Dr. Warren Mack, of Penn State 
College, and Hal Mills, Plant Breeder for 
D. Landreth Seed Co., inspect all our 
tomato fields before the first pickings are 
made. At least one more field inspection is 
necessary and sometimes one or two after 
that before these two inspectors are satisfied 
that^the fields are up to the high standards 
required. 
During these inspections the fields are rated 
for vigor, and the plants and fruits are care¬ 
fully examined for disease and trueness to 
type, whole fields being discarded if they do 
not meet the very strict requirements. 
INSPECTION OF EQUIPMENT 
The seed saving machines are inspected, and the processes of washing and 
drying of the seed are checked. 
GERMINATION TESTS 
Samples of certified tomato seed are taken by Inspector Lauer direct from the 
bagged stocks. These are tested for germination at Harrisburg and certificates 
issued to our Company. 
A Field of Landreths’ 
Rutgers Tomato 
In spite of unfavorable 
weather, this field pro¬ 
duced a heavy crop of 
high quality fruit. 
