4 2 



PARA RUBBER. 



The undermentioned table shows the number of plants 

 required per acre when planted at various distances apart and the 

 amount of land available for each plant : 



WEEDING AND HARROWING. 



Even when no secondary crops are grown with rubber, weeds 

 must be constantly checked. On level lands they should be 

 regularly hoed up ; if this be done on steep sloping lands heavy 

 rains will wash away the fine surface soil, so cutlassing should be 

 resorted to. When trees are planted fairly closely together, or 

 between-crops grown, weeding will require most attention during 

 the first three or four years following the establishment of the 

 plantation ; after this period the shade produced by the trees 

 has a beneficial effect in keeping weeds down. It is reported 

 that the following " weed-killer " has proved successful in exter- 

 minating "Illuk" grass in Selangor : 2 Ibs. 14 oz. of washing 

 soda was dissolved in 3 gallons of water ; this was raised to the 

 boiling point and 2 Ibs. of white arsenic slowly stirred in and 

 then diluted with 20 gallons of water to form the stock solution. 

 Two pints of stock solution mixed with 5 gallons of water were 

 sprayed on the grass or applied by allowing a cloth suspended 

 from a tank, containing the solution, on wheels to be drawn over 

 the grass. 



Comparatively few planters sufficiently appreciate the benefits 



