5S MISC. PUBLICATION 318, U. S. DEPT. OF AGRICULTURE 
possible harmful effects of an insecticide on plants, animals, and soil 
must be determined also before it can be safely recommended for a 
given use. vee 
The new synthetic organic insecticides, like many of the materials 
previously in use have certain disadvantages. Most of them are poi- 
sonous to higher animals, including man. Thus, such material 
should not be used on fruits and vegetables when fruit or foliage that 
is to be eaten is on the plants, unless the poisonous residues are removed 
by weathering or can and will be removed by artificial means. Fol- 
low recommendations when you apply any imsecticide. If you use too 
much you are wasteful, and to do so may be harmful. 
In handling, mixing, and applying insecticides that are poisonous 
to human beings, be especially careful not to inhale excessive 
quantities. 
After working with such materials, wash your hands or any ex- _ 
posed part of your body thoroughly. Label the containers plainly in 
which these insecticides are kept or stored, and place them out of 
reach of children or of persons who would be careless in their use. 
eo. i) 
