Home Rubber sector TPD Medic - TPD / Brown Bast Treatment
Rubber sector - TPD Medic - TPD / Brown Bast Treatment

Tapping Panel Dryness ( TPD )

Generally, rubber trees are being grown to be tapped for it’s latex commercially. In the course of tapping from young age to maturity, the bark of the trees can tend to dry up due to many factors. This can bring about a temporary blockage of latex vessels on the rubber trees, leading to bark dryness.

In General, high yielding clones of natural rubber are often considered to be more susceptible to the physiological disorder commonly termed Tapping Panel Dryness (TPD) earlier referred to as Brown Bast. It is estimated that TPD leads to approximately 15-20% decrease in yield.

The most important symptom of TPD affected trees is partial or total drying of tapping panel which gives the name to the disorder. Besides cessation of latex flow, terminal symptoms like bulging, necrosis and cracking of the bark have been observed.

If Tapping Panel Dryness is left uncheck & untreated it can lead to a severe loss in natural rubber production in a plantation.

As such, we have managed to develop a chemical call “BBTex” to solve this TPD problem. BBTex can be applied by spraying onto the bark of the infected trees from ground level to a height of at least 8ft or above.

Spraying can be done once a week for the first 3 months and decreasing in concentration & intensity over with time. In most cases, in general, tapping can be resumed again within 3 months of BBTex application.

BBTex is being formulated to strengthen the health of trees so that eventually they will recover from Tapping Panel Dryness or brown bast and it also help to alleviate the effect of many fungal diseases too.

BBTex is not only suitable for TPD infected trees but they are also useful for young and mature rubber trees in general as it also contain supplement to enhance the trees well being.

Farmer can expect to have most infected Tapping Panel Dryness trees back to normal condition again after having BBTex treatment.

 

Management Practice on TPD or Brown Bast

Below are some recommended practice to control & minimize the effect of

TPD or Brown Bast :

  1. Giving sufficient tapping rest and changing the tapping panel on rubber trees are the generally followed plantation practices to manage Tapping Panel Dryness .
  2. Tapping rest does result in some improvement in the TPD or Brown Bast situation at least for a while and a small proportion of the Tapping Panel Dryness trees may make full recovery particularly when the trees are reopened on a new panel.
  3. It is observed that most high yielding clones are highly susceptible to the disease and hence it would be advantageous to follow 1/2 S d/3 or 1/4S d/3 tapping system to reduce the intensity of exploitation stress thereby reducing the Tapping Panel Dryness incidence in the population.
  4. As a curative measure, resting the trees without tapping for a considerable period is advised. Therefore, tapping can be resumed changing the tapping panel and following a low intensity tapping system

 

 

Rubber Sector
2. tpd1
2. tpd1
Image Detail
2a. tpd2
2a. tpd2
Image Detail
3. tpd3
3. tpd3
Image Detail
4. tpd4
4. tpd4
Image Detail
5. tpd6
5. tpd6
Image Detail

 

Display Num