Damage such as girdled stems, holes in fruit, or torn leaves indicates which type of mouthparts?

Damage such as girdled stems, holes in fruit, or torn leaves indicates which type of mouthparts?

• A. Chewing mouth parts
• B. Piercing-sucking mouth parts
• C. Fungus
• D. Siphoning mouth parts

Answer: (A)

Types of mouthparts determine the kind of plant damage you observe. Damage like girdled stems, holes in fruit, or torn leaves comes from insects with chewing mouthparts. Mandibles cut and tear solid tissue, producing irregular holes, ragged leaf edges, and even girdling when an insect bites around a stem. Insects with piercing-sucking mouthparts create tiny punctures and cause stippling or yellowing, not large holes or torn tissue. Those with siphoning mouthparts feed on nectar and typically leave little direct plant damage. Fungus isn’t a mouthpart at all. So chewing mouthparts best explain the observed damage.

Types of mouthparts determine the kind of plant damage you observe. Damage like girdled stems, holes in fruit, or torn leaves comes from insects with chewing mouthparts. Mandibles cut and tear solid tissue, producing irregular holes, ragged leaf edges, and even girdling when an insect bites around a stem. Insects with piercing-sucking mouthparts create tiny punctures and cause stippling or yellowing, not large holes or torn tissue. Those with siphoning mouthparts feed on nectar and typically leave little direct plant damage. Fungus isn’t a mouthpart at all. So chewing mouthparts best explain the observed damage.