15 



A CANKER DISEASE OP HEVEA. 



Herr KURT BUSSE, Deli, refers in the November number of the 

 " Tropenpflanzer," to a canker disease of Hevea. It appears on 

 two-year old trees, and its progress may be stopped by cutting out 

 the diseased part and disinfecting the wound with a mixture of tar 

 and carbolic acid. Trees treated in this way are completely healed 

 inside three months, Herr Dr. W. BUSSE, remarks that it still 

 remains to be seen whether trees, which have satisfactorily healed 

 after treatment for canker, show a latex production similar to 

 normally healthy trees. He adds that on most estates activity in 

 combating plant-disease is manifested only when the disease is 

 already well advanced, and recommends that all plants should be 

 sharply examined at regular intervals for signs of disease. 



W. J. G. 



We have received a small paper on Vulcanisation tests with 

 Plantation Rubber by Messrs. CLAYTON BENDLE and STEVENS — 

 being a reprint from the " Chemical News" of July 26, 1907, No. 

 2487, Vol. 96, page 37. The authors show by experiment the com- 

 parative value of Plantation Rubber, and hard cure para, to the 

 advantage of the former. As the whole paper is of great interest 

 we hope to reproduce it in full in our next issue. 



AGRICULTURAL SHOW 1908. 



We would remind our readers that the Agricultural Show for this 

 year has been fixed to take place sometime about August at Kuala 

 Lumpur. It is important that all intending exhibitors should begin 

 to prepare their exhibits in good time. A liberal dressing of 

 manure around coconuts, fruit trees, etc., would be beneficial as 

 would thinning the fruits at a later stage on those trees reserved 

 for exhibition purposes. It would be a good thing if District 

 O'fficers would issue preliminary notices in their districts calling the 

 attention of the natives to the desirability of taking early action. 



W. F. 



NOTE. 



Mr. H. N. Ridley returned from leave on the 27th instant. 



W. F. 



