with the drifting dust or smoke, the 

 wind velocity is about 10 miles an hour. 



Sprays 



For sprays, emulsions prepared from 

 emulsifiable concentrates are recom- 

 mended. The per-acre dosage should 

 be as follows: Malathion, 1 pound; 

 demeton, parathion, or dieldrin, 6 

 ounces. 



Dilute the concentrate with enough 

 water to provide a good distribution 

 throughout the foliage. The amount of 

 water necessary depends on the equip- 

 ment used. If the spray is applied with 

 one of the low-gallonage ground spray- 

 ers commonly used in the Southwest, 10 

 to 25 gallons of water is probably suffi- 

 cient. In high-gallonage sprayers 75 to 

 100 gallons may be required. In air- 

 craft sprayers 4 to 6 gallons is sufficient. 



Ovex emulsion may injure the foliage 

 and therefore is not recommended. 



PRECAUTIONS 



Most insecticides are poisonous to 

 people and to animals. Handle insec- 

 ticides with care. Store them in closed, 

 plainly labeled containers. Put them 

 out of the reach of children and 

 animals. 



Follow all directions and heed all 

 precautions given on the labels. 



Avoid inhaling or swallowing insec- 

 ticides. 



Parathion and demeton are par- 

 ticularly poisonous and should be 



applied only by or under the su- 

 pervision of a trained operator 

 who will assume full responsibil- 

 ity for safe use and enforce the 

 precautions prescribed by the 

 manufacturer. They are extremely 

 toxic if swallowed, inhaled, or absorbed 

 through the skin; they may cause 

 death. Do not attempt to prepare para- 

 thion or demeton dusts. Do not apply 

 parathion within 7 days, or demeton 

 within 21 days, before harvest. 



Do not apply malathion within 1 

 day before harvest, or ovex after har- 

 vest begins. 



If an emulsifiable concentrate of 

 dieldrin, or a spray containing dieldrin, 

 gets on the skin, it may cause irritation ; 

 avoid unnecessary exposure of the skin 

 while mixing and applying the spray. 

 If the concentrated insecticide is acci- 

 dentally spilled on the skin, wash it off 

 immediately. Do not apply dieldrin 

 after blooming begins. 



Dust or spray at night to avoid 

 poisoning bees. Do not apply insecti- 

 cides if apiaries are close enough to 

 be affected. Notify the beekeeper so 

 that he can move the hives if necessary. 

 Do not apply insecticide dust when 

 wind conditions are such that the in- 

 secticide will drift to apiaries or to 

 blossoming plants being visited by bees. 

 Honey bees and wild bee pollinators 

 are absolutely necessary for a melon 

 set. 



Prepared by Orin A. Hills and Edgar A. Taylor, entomologists, Entomology 

 Research Division. Agricultural Research Service 



Washington, D. C. 



Revised March 1959 



For sale by the Superintendent of Documents, U. S. Government Printing Office 

 Washington 25, D.C. - Price 5 cents 



8 



U. S. GOVERNMENT PRINTING OFFICE:1959 



