sections of the state. In areas where conditions favoring blight development prevail 

 watch susceptible T-cytoplasm fields closely during the next two to three weeks. 



Individual fields of susceptible corn may still suffer blight damage. During the nexi 

 month, we expect to receive reports of corn lodging- -mostly caused by the premature 

 death of plants, invasion by secondary stalk-rotting fungi, and some relatively minor 

 stalk rot caused directly by the southern corn leaf blight. Recent observations con- 

 firm that normal cytoplasm plants are still resistant to race T of the blight -causing 

 fungus and are not likely to suffer damage, even though they may develop lesions. 



Plant pathologists in Indiana, Illinois, Missouri, and Kansas report that fungicide aj 

 plications applied early at proper rates and intervals have provided satisfactory bli<! 

 control. The sprays have also protected the ears and husks. 



SEED TREATMENTS AS LOW-COST CROP INSURANCE 



Treating seed with a fungicide is a low-cost means of providing crop insurance for im- 

 proved stands, better grain quality, and higher yields. Chemical seed treatment is 

 especially valuable during cold, wet weather following planting. 



The primary reason for treating seed with a fungicide is to control smut fungi that 

 infect seedling plants. The common fungicide seed treatments will control: (1) loose' 

 and covered smuts of oats, (2) covered and semi-loose (black) smuts of barley, and 

 (5) stinking smut (bunt or covered) and (4) flag smut of wheat. 



Fungicide seed treatments also effectively control many soil-borne fungi and bacteria ( 

 that cause seed decay and seedling blights (damp ing- off) . Control of these pests re-: 

 suits in increased stands of vigorous plants that produce higher yields. 



In addition, fungicide seed treatments effectively control seed-borne infections cause 

 by the scab fungus; seed-borne root rots; and stripe, net blotch, and spot blotch of barley 



Suggested Seed Treatment Chemicals for Wheat, Oats, Barley, and Rye 



.WF b . . 



. . Slurry 







.WP . . 



. .Planter 



-box 





.WP . . 



. .Slurry, 



dust, 



Planter-box 



.WP . . 



. .Slurry, 



dust, 



Planter-box 



.WP . . 



. .Planter 



-box 





Method of 

 Material Registered Fornuilatarm application 



Captan 80 W,0,B,R a . . 



Captan-Maneb (10-35) W,0,B,R . . 



Captan-Maneb (50-50) W,0,B,R . . 



Captan-Maneb (57.5-57.5) . . . .W,0,B,R . . 



Maneb 55 W,0,B,R . . 



Captan HCB - 20.20 W WP . . . .Planter-box, dust 



Captan HCB - 40.40 W WP . . . .Slurry, dust 



Captan-HCB-Maneb 20-20-15. . . .K,0,B,R, . . . .WP . . . .Planter-box, dust 



PCNB-Terrazole (22.7-11.5) . . .W L ... .Slurry 



Thiram W,B,R WP . . . .Slurry, dust 



Vitavax c W,B WP . . . .Slurry, dust 



a W = (wheat), (oats), B (barley), R (rye). 

 b WP (wettable powder or dust) . L (liquid) . 

 c Cleared for use only on registered and foundation seed, Yitavax has not been 



approved by Federal agencies for use on seed if the crop will be used for food, 



feed, or oil. 



Fungicide treatments can be applied: (1) as a dust with a rotary, barrel, or oil -drum 

 treater; (2) as a wettable powder mixed with an equal amount of water to form a unifor 

 suspension called a slurry, or (5) as drill- or planter-box treatment by mixing the elf 

 ical with seed just before planting. 



ChecV the manufacturer's recommendations on the label for proper rates of application. 



