Nature of Damage:
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Are the castor whiteflies which feed on the foliage by sucking sap. Due to heavy feeding the leaves become yellowish and ultimately they dry.
Several tiny whitish eggs are laid on the undersurface of the leaves. The resulting nymphs settle down and start sucking the plants.

Management:
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Spraying with monocrotophos 0.04 % or methyl-o-demeton 0.03 %.