THE IP TRHAT11ENT FOR GLADIOLUS. 
Bulbs may be treated for thrip and scab by using a solution put up by 
the Standard Oil Co., called "Super-Germite", and soaking them for four 
hours, or by treating with corrosive sublimate for 12-16 hours. In using 
corrosive sublimate, 1 oz. to 8 gallons of water is sufficient. On peeled 
corms, a 5 to 8 hour dip is satisfactory. On sprouted bulbs, peel and dip 
not over 4 hours. This dip should be used Just before planting. 
If thrips survive pre-planting treatments, or migrate into the plant¬ 
ing from outside sources, infestation rapidly develops and control measures 
are necessary. Since the thrips are difficult to find on the foliage, a 
careful examination of the plants should be made as soon as the first leaves 
appear above the ground, and if any '’silvered'’ spots are noticed, the plants 
should be sprayed. Careful spraying, repeated weekly until flowering time, 
will do much toward insuring a normal crop Oo. flowers. This can be ac¬ 
complished only if the insects are destroyed before they have an opportu¬ 
nity to enter the buds. If spraying is delayed until the flower spikes 
appear, little can be done to save the flowers. 
Either of the following sprays may be used: 
Tartar emetic 
Brown sugar 
Water 
or 
Paris Green 
Brown Sugar 
Water 
— 2 oz., or 4-J- teaspoonfuls 
— 8 oz., or 1 2/3 cups 
— 3 gallons 
— 1 rounded tablespoonful 
— 2 pounds 
— 3 gallons 
Care must be used in handling the Tartar emetic and the Paris Green 
as they are both poisons. Spray lightly to avoid harming the foliage. 
Glads should be planted in spring about the time the trees leaf. 
Plant about 5" deep, 5” apart. In the fall, after they are through bloom¬ 
ing about six weeks, they may be dug, the tops cut off 1" above the bulb, 
and then dried. After they are dry, the old roots may be removed. If 
thrip were present on the flowers, they can be eradicated by storing the 
bulbs in paper bags or tight boxes after the bulbs are cleaned, with 1 oz. 
of naphthalene flakes to the 100 bulbs. Leave for about three weeks to a 
month, and then leave exposed to the air. While using the naphthalene, 
watch the bulbs so that they do not start sprouting. 
All of our bulbs are treated for thrip before shipping. 
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