- 3 - 
Nik-Nar Nursery 
O'Neill, Joseph G. , and Son 
Pattersons Greenhouse 
Perkins & DeWilde Nurseries 
Pier son, A. N. , Nursery 
Pitzonka Pansy Farm 
Princeton Nurseries 
Rayner Brothers 
Rhode Island Nurseries 
Roak, George H. 
Roehrs, Julius, Nurseries 
Rogers, Joseph 
Saunders, Earnest 
Scammell, H. B. , and Son 
Shoreway Nursery 
Verkades Nursery 
Vlamynck, 0. , Nursery 
Walker, Wallace, Farm 
Waterstreet, Carl 
Wayside Gardens 
Whitings Greenhouse 
Wyman, Littlefield 
Yeagle, W. P. 
Biltraore, N. C. 
Browns M1113, N. J. 
Augusta, Maine 
Bridgeton, N. J. 
Cromwell, Conn. 
Bristol, Pa. 
Kingston, N. J. 
Salisbury, Md. 
Middletown, R. I. 
Lewi st on, Maine 
Rutherford, N. J. 
Browns Mills, N. J. 
Lewis ton, Maine 
Toms River, N. J, 
Clayton, N. J. 
Wayne, N. J. 
East Paterson, N. J. 
Auburn, Maine 
Brighton, N. Y. 
Mentor, Ohio 
Auburn, Maine 
North Abington, Maine 
Bristol, Pa. 
It is realized that the reaction of plants to technical DDT in the 
soil may be modified by the age and vigor of the plants, and that the 
reaction may not be the same in other soils under environmental con- 
ditions different from those encountered in these te3ts. The records 
given herewith are those of the reactions of the plants under the 
conditions of the tests, and it should not be assumed that the same 
reaction will be obtained in another environment. It is urged that 
those who are interested in growing plants in DDT-treated soil conduct 
preliminary tests under local conditions before applying the treatment 
on a large scale* 
During the 4 years since January 1944, a total of 10,651,455 plants 
of 355 genera, 963 species, and 1,694 horticultural varieties were 
grown in soil treated with the authorized amount of technical DDT* 
These plants included evergreen and deciduous trees and shrubs, annual 
and perennial herbaceous plants, small and tree fruits, vegetables, 
grasses, and cereals. The observations indicated that plants of 350 
genera, 957 species, and 1,688 horticultural varieties were grown 
successfully in the treated soil* 
The plants that grew without serious injury in soil treated with 
the authorized amount of technical DDT appear in the following tabulation: 
