When the attack is on an old tree there is generally little 
harm done, but when it is on a young tree it frequently kills it. 
There is as yet no definite evidence that the sandalwood is an 
obligatory parasite, i.e., that it must have a host plant in order to 
carry on its natural life functions, but this is probably the case. 
In India, Dr. Barber and Mr. Rama Kao have tried to raise san- 
dalwoods without a host, but find that they die out as soon as 
t lie food materials are exhausted from the seed. They found it 
to attack an Australian plant, the Blue Gum of the Eastern States, 
which is cultivated there. 
Raising Sandalwoods without the presence of a host plant 
at Dingelly proved a failure, but when the plantation was left 
to itself and other plants grew up, the sandalwoods Ilourished. 
This, therefore, seems to indicate that the plant is an obligatory 
parasite. 
Blale XTT. — Roots of Acacia acuminata attacked by hailstorm. 
