HORTICULTURE SCIENCE
DISEASE AND PEST MANAGEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Damage such as leaf defoliation, leaf mining, stem boring, and root feeding is caused by ____ ?
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Insects with chewing mouthparts
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Insects with piercing-sucking mouthparts
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -(a) Loss of photosynthetic tissues; in extreme cases defoliation may result. (b) Destruction of buds and shoots. (c) Destruction of flowers, fruits and seeds. (d) Boring and tunnelling of stems; interruption of sap flow and physical weakening of the stem; stem breakage may result.
Detailed explanation-2: -Insects damage plants in many ways, but the most common type of damage is the removal of plant tissues, as in the familiar examples of caterpillars, beetles, and grasshoppers whose feeding creates noticeable holes or even the wholesale removal of leaves, fruits, or other plant parts.
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