HANDBOOK OX INSECT ENEMIES OF FLOWERS AND SHRUBS 111 



lime greatly reduces the toxicity of the 

 final product, it should not be used in the 

 preparation of dusts and sprays. 



The oil solutions are used to control 

 flies, mosquitoes, roaches, and other 

 household pests. They should not be 

 used on growing plants because they 

 will cause burning. 



The ordinary aerosol bombs that are 

 now on the market are prepared for the 

 control of flies, mosquitoes, and other 

 household insects and should not be used 

 to control insect infestations on plants. 

 Special aerosol preparations, however, 

 have been developed for the control of 

 certain insects in greenhouses, but at 

 present aerosols have not been adapted 

 for the control of insects on ornamental 

 plants and flowers. 



Caution. — DDT is poisonous and 



should be handled with care. It 

 should be stored in clearly labeled 

 packages and kept away from food 

 products. 



When applying DDT to flowering 

 plants and shrubs adjacent to food 

 crops, care should be taken that the 

 material does not come in contact with 

 foliage that is to be marketed or used 

 as food or is to be consumed by live- 

 stock. The use of DDT on ornamental 

 plants growing close to fish ponds or 

 streams should be avoided, since there 

 is danger of killing fish and other 

 aquatic life. DDT in oil solutions and 

 emulsions may be absorbed through the 

 skin of man and animals. Persons us- 

 ing it in these forms should take special 

 precautions to avoid repeated or pro- 

 longed exposures to the material. 



