1. Anthracnose: Botryodiplodia palmarum

Symptoms

• This disease occurs in the nursery.
• It is recognized by regular or irregular brown to black leaf blotches surrounded by yellow haloes, which develop along the margin, centre or tip of the leaves.
• It causes heavy seedling loss.

Management

• The disease can be controlled by spraying Mancozeb or Captan at the rate of 200 g/100 litres of water.
• Copper fungicides should not be used because of the extreme susceptibility of oil palm seedlings to copper burn (scorching).