CLASSIFICATION NOTE 
The North American Gladiolus Council classification places Glads in size divisions 
as follows: Miniature, 100 series; Small Glads, 200 series; Medium, 300 series; Large, 
400 series; Giant, 500 series. The color class is indicated by the last two digits. For ex- 
planation see classified list published by the North American Gladiolus Council. 
JOIN THE NORTH AMERICAN GLADIOLUS COUNCIL 
An international organization sending to its members quarterly size Bulletins with 
much information of interest; also the Annual Classification of Gladiolus Varieties. 
Subseribing: member, ) +. 0:00¢.40.08 «cused nad fu eh epee re saw ge cilia Wool sceis) one gett eee $1.00 per year 
Send to Secretary Thomas R. Manley, 
Garden Center, Oglebay Park, Wheeling, W. Va. 
THRIPS CONTROL MADE EASY 
During the 1946 season we carried out experiments in the control of Thrips on 
bulbs and plants, using DDT in dust form. The first publication on results of controlling 
thrips in field plantings appeared in our article “Hello Dust, Good-bye Spray’’ in the 
Sept. (1946) Bulletin of the North American Gladiolus Council. We are now completely 
sold on the use of dust for its effectiveness, convenience and ease of application. We 
recommend using 5% strength of DDT dust, compounded from ‘“Deenate,”’ a 50% wet- 
table DDT powder, using a fine grade of talc as the diluent base. 5% DDT dust is now 
on the market in many places. 
Treat the bulbs soon after harvest while drying by blowing the dust over and 
through the trays of bulbs cr other containers. A small hand gun holding a pint or less 
of dust is most convenient for the purpose. Small lots of bulbs may be treated by placing 
bulbs and dust in large paper bags and shaking gently. Bulbs so treated will be protected 
against roving thrips since the insects will be killed as fast as they contact the dust. DDT 
residue will not injure the bulbs. Protecting the growing plants is best done by using the 
same 5% DDT dust, blowing it on the plants with a dust gun at weekly intervals. Keep it 
up until September if you want good late blooms. We have checked enough results to 
find this program is more efficient than tartar emetic sprays or other insecticides used 
in the past. DDT liquid sprays are also effective but the labor saving advantages of 
using dust will eventually result in most growers discarding the sprayers in favor of dust- 
ing machines. We have used a Root hand gun duster of a size holding about four pounds 
of dust, shoulder strap supported and with hand crank, covering one acre of Glads with 
dust in two hours. Warning: If you do much dusting you should provide yourself with 
a respirator or gas mask. Breathing much dust will cause headaches and possibly more 
serious troubles. 
DISEASE CONTROL 
We use and recommend “‘New Improved Ceresan’’ as a dip at planting time. If 
you grow many Glads or expect to continue growing them it is necessary to dip the 
bulbs in a disinfectant just before planting. Use | oz. of N. I. C. in 3 gals. of water and 
add 3 teaspoons of Dreft as a wetting agent, or a brand of Spread-Sticker. Do not use 
bare hands to mix concentrated N. I. C. First make a paste of the powder then add larger 
volume of water. Soak bulbs and bulblets for 30 minutes, then drain off the liquid and 
plant while still damp. On large bulbs one may break the husks to help penetration but 
do not remove as the husks act like a sponge to hold and carry the disinfectant for many 
days, and so better protect the new bulb and rootlets. One batch of N. I. C. mix may be 
used four or five times without losing too much strength, but then it is time to discard 
or add fresh mix of N. I. C.. We have shown in earlier publication that N. I. C. will kill 
thrips on the bulbs at time of dipping, provided the husk is wet through in the soaking 
process. You should not have the thrips to worry about provided you treated the bulbs 
with DDT dust in storage. 
If more convenient for the small grower, use Lysol which may be obtained at 
most drug stores. Soak bulbs and bulblets for 3 hours, just before planting in a solution 
prepared at the rate of | teaspoonful of Lysol to | quart of water. Allow to drain for 30 
minutes and plant bulbs and bulblets while still wet. 
HIHO (Knight, 1948) 
(Ogarita X Wings of Song) 
Color a clear deep rosy salmon, throat clear white without markings, never flecks. 
Florets 5 to 514 inches, petal margins waved; opens 8 to 10 florets on a 30 inch flower- 
head; classification 432. See cover illustration of three spikes taken last August during 
the hot spell. This is an improvement in clear color tone over the parent Ogarita which 
it resembles in tall vigorous growth; overall height about 65 inches. Good growth con- 
ditions produce 30 inch flowerheads of 20-22 buds, while well grown plants have made 
