Thrips work in a peculiar manner. They are 
equipped with a sucking organ and to help them 
break the surface and get the juices, they have tiny 
scarifiers that injure the bloom and spikes. They 
thrive best in moderate, warm, dry temperatures. Real 
hot weather tends to check them, and they do not 
multiply in cold temperatures. 
Napthaline Treatment . After bulbs are dug and 
cured, place in tight paper bags with one ounce of 
napthaline flakes to each one hundred bulbs. This 
forms a gas that kills the thrip and eggs. Leave sev¬ 
eral weeks but be sure bulbs do not sweat or mold. 
Corrosive Sublimate. For treatment at planting, 
use corrosive sublimate—one ounce to five gallons of 
water—in wooden or earthen jars. Leave several 
hours or overnight. This treatment is also good to 
use against scab and disease. 
Lye Treatment. We have used a lye solution for 
several years as a preventive against insects and dis¬ 
ease. We use one small can—“12 ounce”—lye to 25 
gallons of water. We soak the bulbs eight to twelve 
hours in wooden barrels. Lye is much cheaper than 
any other treatment we know of, and as far as our 
experience goes, proves just as effective. We use this 
solution two or three times. 
Spraying. For spraying plants, use two table¬ 
spoons of paris green, two pounds of brown sugar 
and three gallons of water. Spray on both sides of 
row with plenty of force. 
Thrips do not survive out of doors in cold climates 
so if your ground freezes several inches deep, the only 
danger is from roots or bulbs in storage. Always 
keep bulbs in cool places as little above freezing as 
possible. 
Gladiolus Societies 
To enjoy glads to the fullest extent, join a glad 
society and exhibit your prize blooms. 
The Iowa Glad Society sponsors several shows each 
year and sends out a monthly bulletin chuck full of 
glad news. Chapters are located at Ames, Cedar Ra¬ 
pids, and Waterloo, and others are being organized. 
Dues are only $1.00 per year. Address Robert Her¬ 
rick, Secretary, State House, Des Moines, Iowa, or 
the writer for particulars. 
The American Gladiolus Society, Roscoe Huff, Sec¬ 
retary, Goshen, Indiana, publishes the Gladiolus Re~ 
view , sent free to all members. Dues are $2.00 per 
year. 
The New England Gladiolus Society publishes a 
year book full of interesting information on gladiolus 
by experts on every phase of the industry. Free to 
members. Dues are $1.00 per year. Address the 
secretary, G. Edgar Folk, Oakdale, Mass. This is 
the largest society, having over 5,000 members. 
20 — 
