Pink disease
Causal organism
- The causal organism of pink disease Corticium salmonicolor B. Br.
Classification
- Class- Basidiomycotina,
- Order- Polyporales &
- Family- Thelephoraceae.
Symptoms
- Infected branches show a pink encrustation, hence the name pink disease.
- On the brown wood of infected branches longitudinal cracks develop through which pinkish encrustation bursts.
- In advanced stage, entire branch may show a pinkish encrustation.
- Cobweb like mycelial strands are seen on infected branches.
- Infected branches loose their leaves & die.
- Favourable factors
- Continuous monsoon rains, relative humidity near saturation & thick overhead shade are the favourable factors for the disease development.
Management
- In endemic areas, maintain clear and open structure of the bushes by removing leaf litters of overhead trees fallen on branches.
- Adopt proper handling and centering of bushes so as to provide proper aeration and drainage to minimize build up of humidity
- Spray 1.0 % Bordeaux mixture before the onset of south-west monsoon
- If disease is noticed, remove infected leaves and berries and bury them.
- Also spray Bavistin 0.03 % a.i. (120 g/ 200 l water) during break in monsoon.
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Last modified: Saturday, 11 February 2012, 4:21 AM