Pest of Rubber. Termites form colonies at the base of the trunk. Some species prefer living trees...
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Transcript of Pest of Rubber. Termites form colonies at the base of the trunk. Some species prefer living trees...
Pest of Rubber
Termites• form colonies at the base of the trunk. • Some species prefer living trees while others feed on
dead tissues.• Newly-budded plants are very susceptible to termite
attack• Affected young trees show deficiency symptoms. • In large trees, the trunk may be honeycombed with
disintegrating tissues, without any visible signs of injury, that may easily fall when strong winds blow.
• Termites are hard to control when the colonies are fully developed.
• Macrotermes sp. Coptotermes curvignathus
Control Measure
• Practice good sanitation in plantation• Destroy early colonies of termites• Regularly inspect termite tunnels and destroy
them
Leucopholis irrorata
• Root-feeding larvae• Eggs are laid singly or in clusters in the soil. • The larvae lives entirely in the soil. • They are voracious feeders and may consume the
roots of rubber (seedlings stage) and cover crops. • Affected young trees have yellow leaves and dying
shoots, and in severe cases, the trees may die.• Control: Use polybags in raising rubber seedlings to
prevent larvae attack, biocontrol