STEM BLEEDING
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Causal Organism : Theilaviopsis paradoxa
Symptoms
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Development of dark brown patches at the basal portion of the trunk and exudation of dark reddish brown liquid. The tissues beneath the discolored patch show decay. |
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In the crown region, outer whorl of leaves becomes yellow rather prematurely and finally dries up. |
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The trunk gradually tapers towards the apex and the crown size is reduced |
Disease Management
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The affected tissues should be completely removed using a chisel and smear the wound with 5% Hexaconazole 5EC (Contaf) (5 ml in 100 ml of water) and drench the basins @ 40 lit. of 0.1% solution. |
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Smearing of Trichoderma talc powder paste on the bleeding patches of the stem (The paste can be prepared by adding 50g of Trichoderma talc powder to 25 ml of water). |
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Soil application of 5 kg neem cake fortified with 50g of Trichoderma talc formulation per palm per year along with second dose of fertilizers during Aug-Sep. |
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Root feeding with 100 ml of 5% Carbendazim (Bavistin) at quarterly intervals and basin drenching with 40 liter of 0.1% Bavistin. |