Decay Resistance 
Soil-block tests performed at Yale University (l, £) indicate that angelique 
is somewhat superior to teak and considerably superior to white oak in re- 
sisting white rot fungi. In resistance to brown rot it was inferior to teak 
but better than white oak. These comparisons pertain only to heartwood; sap- 
wood is not decay resistant. 
In tests made at the U. S. Forest Products Laboratory, the angelique samples 
sustained such small amounts of decay by even the most active fungus that it 
can be unqualifiedly classified for general consideration as very resistant. 
It would be expected to have superior resistance to fungus damage both in 
ground contact and in above-ground service. The test data reveal it to be com- 
parable to black locust (Robinia pseudoacacia L.) in this respect. 
With respect to commercial heating, the studies indicate that steaming of boat 
frames may lower the decay resistance of some woods moderately. Angelique was 
by far the least subject to heating effects of the nine durable woods tested 
at the U. S. Forest Products Laboratory. 
Marine Borer Resistance 
Angelique has a favorable reputation as resistant to marine borers in the 
Guianas, Panama Canal Zone, France, and the Netherlands. Wood after 15 years' 
exposure in borer-infested waters at Balboa, Canal Zone, showed little pholad 
attack and no significant damage by teredos (2) . 
Tests conducted at Harbor Island, N. C, and in Hawaiian waters generally con- 
firm the favorable reputation of angelique in this regard. After 10 months' 
exposure at Harbor Island, small specimens showed no evidence of marine borer 
activity and after 15 months only moderate attack by teredo and pholads. This 
performance surpassed that of teak, and under the same conditions white oak 
specimens were heavily attacked within 6 months (6) . Edmondson reports 
angelique as showing no infestation by teredo and limnoria after an exposure 
of 3 years in Hawaiian waters (2) . 
Termite Resistance 
Experimental data on the termite resistance of angelique are rather meager. 
Wolcott' s data (7) rate angelique as kh, which is comparable to walnut and 
white oak, with teak rated at 80 in its resistance to the West Indies termite. 
Local reputation indicates that the wood has considerable resistance to termite 
attack and that the rouge form is superior to the others. 
Rept. No. 1787 -h- 
