Wilseu 
WATER Soames 
10—10— 

ORCHID 
FERTILIZER 
Formula developed by Dr. O. W. DAVIDSON, Research Specialist 
Dept. of Horticulture, Rutgers University—N. J. Agricultural Exp. Station 








Right: The effect of fertilizer on 
hard-growing type of Laeliocattleya 
hybrid. Plants in both pots were 
similar in size when transplanted as 
small seedlings two years previous 
to this photograph. 
Photos courtesy of 
N. J. Agricultural Exp. Station 
Rutgers University 
Another Walson’s exclusive — a specifically 
compounded 10-10-10 water soluble fertilizer 
with suitable amounts of all the trace elements 
necessary for good orchid growth, both in os- 
mundine and gravel culture. 
In tests at the N. J. Agricultural Experiment 
Left: This illusrtation shows the effects 
of nutrient deficiencies on Cattleya Orch- 
ids. Note that plants lacking nitrogen 
and phosphorus made little growth after 
being placed on these treatments. Plants 
lacking phosphorus all exhibited more or 
less dieback of shoots. 
Station, and by many leading orchid growers, 
fertilized seedlings gained as much as one 
year in growth in three years of treatment 
over unfertilized orchids. Mature plants 
showed greater health and vigor, developing 
more new shoots and producing many more 
flowers per plant. 
34 lb. (trial size) $1.00; CASE—12, 34 lb. bags $11.50; 25 lb. Drum $20.00 
ANTI-DAMP 
A staple among orchidists to 
(1) wash the agar when re- 
moving seedlings from flasks, 
(2) drench community pots be- 
fore seedlings are planted, (3) 
to control leaf spotting diseases 
or bacterial wilt on adult 
plants. 
1 Pint $1.50 
Qt. $2.40 Gal. $7.85 
36 
SLUG-O 
Safeguard for seedlings and 
orchid flowers—remember one 
petal damaged makes the en- 
tire flower worthless. Snails 
and slugs are attracted to 
SLUG-O from a considerable 
distance, they eat it and die 
on the spot. 
1 Ib. $1.50 
4 Ibs. $3.95; Case (24 Ibs.) $22 
SUPER-CIDE 
Sure and efficient control for 
Orchid Seales, Thrips, Dendro- 
bium Weevils, the Orchid 
Plant Bug, Red Spider and 
practically all other insects 
attacking Orchids. Dilute 
SUPER-CIDE with 100 parts 
of water only. 
1 Pint $1.75 
Gal. $9.75 5 Gals. $48.00 
F.O.B. Springfield, N.J.; or Jacksonville, Fla. 
Greenhouses at Mandarin on the St. Johns River 
