The GLADIOLUS is easy to grow and responds well to 
man's efforts. DDT and similar chemical derivatives are giving 
thrips a hard time. Diseases are how our number one enemy. 
Diseases most active in the field are: 
Fungous Diseases - Fusarium Yellows Sclerotinia Dry Rot 
Basal Dry Rot Septoria Leaf Spot 
Botrytis Septoria Corm Rot 
Stemphylium Leaf blight (Red Spot) 
Bacterial Diseases - Scab 
Virus Diseases- Mild Mosiac White Break Mosiac 
Diseases of undetermined cause - Ink Spot 
Diseases most active in storage are: 
Fungous Diseases - Fusarium Dry Rot Pencicillium Rot 
FUSARIUM YELLOWS is one of the major field diseases of 
gladiolus. This disease has been responsible more than any other 
factor, for the virtual disappearance from the recent catalog list 
of many excellent varieties, vecause of their susceptibility to TGs 
It is caused by a soil invading fungous, can continue to and thru 
storage, reaches it's maxium destructiveness in dry seasons with 
abnormally high soil temperatures. 
(1) Effective control thru growing resistant varieties. Some of 
these are Fair Angel, King Click, King Lear, Lake Placid, Maid of 
Orleans, Purple Supreme, Snow Princess and White Gold. 
(2) Sanitation, which includes, cleans stocks, rotation of ground, 
careful handling, burning of residues, rapid drying and storage. 
(3) Use of protective corm treatments. 
SCLEROTINIA DRY ROT is common, and in wet seasons may increase 
to serious proportions. Both a field and storage problem and is 
most prevelant in heavy soils. Rapid and thorough curing of the corms 
after harvest will prevent development in storage. Rotation, 
Sanitation and Chemical Corm treatments are other controls. 
BOTRYTIS infected corms should never be planted. Where 
suspicious, treat the corms as recommended for control of other 
corm-borne organisms. Corm treatments, in conjunction with crop 
rotation, usually provide effective control of SCAB. Likewise 
BACTERIAL BLIGHT. Roguing is best to reduce VIRUS DISEASES, the 
Insect vector still being searched for. Corm treatments also are 
& benefit in control of INK SPOT. 
BUSARIUM DRY ROT causes a brown dry rot of the corm the same 
as fusarium yellows, other than that they differ. Picardy and it's 
progeny are very susceptible to dry rot while resistant to yellows. 
A pre-planting dip with Ceresan has been standard, together with 
other cultural and sanitary practices. PENICILLIUM DRY ROT is 
controlled by rapid drying after harvest and good storage conditions. 
ARASAN dusting before storing we recommend. 
One of the best treatments that may be applied to the dormant 
corms after cleaning them, to help prevent the rotting that occurs 
between the time of digging and planting is DUPONT'S ARASAN, 30 parts, 
parzate 10 parts, and 5 per cent DDT 60 parts by weight. 
Pre-planting Treatments - New Improved Ceresan at the rate of 
1 pound for 50 gallons of water with a fifteen minute dip is standard. 
Add a little Dreft as wedding agent. Four pounds DUPONT TERSAN in 
50 gallons of water plus wetting agent, stir while treating for five 
minutes is especially recommended for BOTRYTIS control. One half tea- 
spoon of DUPONT ARASAN dust will treat a hundred bulbs. ARASAN SF a 
little stronger product, of the same, that goes into solution. Last 
year we treated half our planting with ARASAN SF. Michigan State 
Department of Agriculture representative remarked about cleanliness 
of our stock and especially ARASAN treated plantings. ARASAN is not 
poisonous, 


DUPONT'S ARASAN 8 0Z $.80 Dupont's N. Imp. Ceresan 1 1b $.90 
Dupont's Arasan 4 1b 5.16 Dupont's N. Imp. Ceresan 4 1b 3.00 
DUPONT Arasan SF25 1b.45.00 Dupont's N. Imp. Ceresan25 1b20.00 
Dupont Arasan SF1001b172.50 Dupont's CERESAN M 14 oz. .90 
-Pupont's Tersan 8 oz .80 Dupont's Ceresan M 3 1b 2.65 
Dupont's Tersan 4 1b 5.16 Dupont's Ceresan M 40 1b28.75 
All Seed Treatments FOB Lansing. We will bill you for postage, 
or ship freight, or express collect. We can offer quality prices on 
Chamouny, Elizabeth the Queen, Lady Jane, and Wanda. 
