SYLVICULTURE. 



Use transplants two or three years pld. 

 Root is a tap-root with many side roots. 

 Mayr does not advocate its propagation anywhere in Germany. 



B. Catalpa speciosa: suiTers badly from short summers, often 

 freezing down to ground. Hence frequently spreading growth. 



Seeds of high germinating percentage. 

 Use either seedlings or transplants two years old. 

 Light demanding, but fond of side shade. 



Mice peel at point of differentiation; all game are fond of 

 Catalpa. 



C. Juglans nigra: mild, fresli soil required, and long warm 

 summers'. 



When one year old, strong tap-roots over one foot long; root 

 fibres at end of tap-root tip. 



When two years old, the tap-root is over two and one-quarter 

 feet long. 



Height growth: 5 years old, 5 feet. 

 10 years old, 13 feet. 

 20 years old, 35 feet. 



Decidely light demanding; fond of side shade in early youth. 



Yellow Pine shelter wood is very good: More shade prevents 

 lignifieation. In close stands, it is free from branches. 



Nuts sprouting late (being dried out) cause shoots to be killed 

 by early frost: Hence pregermination advisable. 



Frost hard in sapling stage. 



No game or mice enemies. 



Plant nuts or yearlings on well-plowed ground, and cultivate. 

 Plant close together, so as to avoid branchiness. Prune lignified 

 branches only, owing to heavy pith column. 



D. Prunus serotina: Modest, provided soil is moist. 

 Light demanding, but does well under slight Pine cover. 

 Roots many tapped, strong. 



Height growth better than that of any European hardwood, 

 save Ash. 



5 years old, 6 feet high. 



10 years old, 13 feet high. 



15 years old, 22 feet high. 



Proof against all effects of frost ! ! ! 



Rabbits cut and peel (also mice) young plants. 



Seed-beds: plant in fall, to avoid lying over, or else soak in 

 water for three days previous to planting in spring. 



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