Horse-drawn traction sprayer equipped with a protective shield. Operator must wear a mask 

 and protective clothing when applying parathion. 



outbreaks may be spot treated 

 with a hand duster. During the 

 last part of the growing season 

 this tobacco should be treated by 

 aircraft. 



The plants of other tobaccos 

 should be inspected carefully be- 

 fore they are a foot high. If only 

 scattered aphids are found, treat- 

 ment may not be necessary. If 

 the smallest leaves of numerous 

 plants are infested, an insecticide 

 should be applied. Plants growing 

 in the shade may need treatment 

 when those in the sun do not. The 

 timely use of insecticides in the 

 plant bed and on young plants in 

 the field will reduce the chances of 

 severe infestations later in the 



season. 



If ground equipment is used, 

 the rates of application are as 

 follows : 



Dust — 8 to 15 pounds per acre 

 on small plants; 20 to 30 pounds 

 per acre on large plants. 



Spray — 50 to 60 gallons per 

 acre on small plants; 75 to 100 

 gallons per acre on large plants. 



If aircraft is used, the rates of 

 application are as follows : 



Dust — 20 to 30 pounds 



per 



acre. 



Spray — 1 to 5 gallons per acre. 



Control of Other Insects 

 Occurring With Aphids 



The tobacco hornworm, the 

 tomato hornworm, budworms, flea 

 beetles, and climbing cutworms 

 may occur with aphids in the 



