Plantation Crops (2+1)

Chemical methods of yield increase

Chemical used: Ethrel (2, chloroethyl phosphonic acid) i.e., ethephon.
Ethrel stimulate and increase the yield of rubber latex flow at least by two folds. Ethrel has to be diluted with coconut oil to have 10 per cent active ingredient. Judicious application of dilute (1 to 5 % active ingredient) ethephon on the panel or on the bark at prescribed intervals and seasons enhances the yield.

Method of application:

• Bark application with a brush below the tapping cut to a width of 5 cm after light scrapping of outer bark.

Schedule of application:

Latex can be processed into any of the following forms

1) Preserved field latex and latex concentrate
2) Sheet rubber
3) Block rubber
4) Crepe rubber

Field coagulum can be processed only into crepe rubber or block rubber.

1) After drought period, preferably after few premonsoon showers
2) Subsequent application during September
3) November