Symptoms and Management of Leaf spot/Anthracnose of Betelvine
Causal organism: Colletotrichum piperis.
Symptoms of Leaf Spot/Anthracnose of Betelvine
1. The leaves show small, black, circular spots initially which later enlarge and develop to a size of 2 cm, become concentric and covered with a yellow halo.
2. The affected leaves turn pale yellow and dry up with large black dots in the center of the spots.
3. Black, circular lesion may develop on the stem, enlarge rapidly and girdle the stem resulting in withering and drying.
Favourable condition of Leaf Spot/Anthracnose of Betelvine
In high humidity, it spread rapidly.
Control Measures/Management of Leaf Spot/Anthracnose of Betelvine
♦ Collect and destroy the infected leaves.
♦ Cultivate resistant varieties. e.g. BARI pan1, BARI pan2.
♦ Spray with 0.2% Ziram or 0.5% Bordeaux mixture after plucking the leaves.
♦ Spraying Tilt 250 EC @ 0.5 mL/L of water at 23 times in 10 days interval.