Fumigated Unfumigated 

 Ponderosa pine (2-0) 

 Coeur d' Alene nursery 



Fumigated Unfumigated 

 Ponderosa pine (2-0) 

 Savenac nursery 



Fumigated Unfumi 

 Douglas-fir (2-0) 

 Coeur d' Alene nursery 



Fumigated Unfumigated 

 Engelmann spruce (3-0) 

 Savenac nursery 













u 











Fumigated Unfumigated 

 Western white pine (2-0) 

 Coeur d' Alene nursery 



Figure 3. — Some representative 

 samples of the effects of 

 soil fumigation with MC-33 

 at 300 pounds per acre on 

 the size of conifers grown 

 at Coeur df Alene and Savenac 

 nurseries. (Background 

 grid = 2-inch squares.) 



14 



