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Home Q & A Board Biology-Related Homework Help Cell Biology
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barry barry
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Posts: 11630
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12 years ago
Insect growth and metamorphosis is controlled by the steroid hormones ecdysone and juvenile hormone (JH). In insects like butterflies and moths that have a distinct larval (juvenile) and adult stage, the relative amount of JH determines whether the insect molts to the next juvenile stage or switches to become an adult. Can you think of a way to use this hormonal system to control caterpillar agricultural pests?
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#1
Staff Member
12 years ago
The best approach would be to somehow suppress JH early in caterpillar development, forcing them to mature early. This would reduce the duration of the most destructive stage (the leaf-eating caterpillar). The opposite treatment (extending the caterpillar stage) would have dire consequences, because the quantity of leaf biomass these insects consume increases geometrically with each larval stage.
- Master of Science in Biology
- Bachelor of Science
barry Author
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#2
12 years ago
Thanks duddy, you're a life saver.
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