Which leafhopper feeds on alfalfa and causes yellowing and reduced vigor?

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Multiple Choice

Which leafhopper feeds on alfalfa and causes yellowing and reduced vigor?

Explanation:
The potato leafhopper is the insect that fits this pattern. Leafhoppers feed by piercing plant tissue and sucking out sap, which often causes a distinctive yellowing and stunted appearance known as hopperburn, especially on alfalfa. This sap-sucking damage reduces vigor and can slow regrowth. The alfalfa weevil chews leaves and mainly causes defoliation rather than the yellowing pattern described, while stink bugs and the Colorado potato beetle do not typically produce this alfalfa-specific yellowing symptom. So the leafhopper causing yellowing and reduced vigor on alfalfa is the potato leafhopper.

The potato leafhopper is the insect that fits this pattern. Leafhoppers feed by piercing plant tissue and sucking out sap, which often causes a distinctive yellowing and stunted appearance known as hopperburn, especially on alfalfa. This sap-sucking damage reduces vigor and can slow regrowth. The alfalfa weevil chews leaves and mainly causes defoliation rather than the yellowing pattern described, while stink bugs and the Colorado potato beetle do not typically produce this alfalfa-specific yellowing symptom. So the leafhopper causing yellowing and reduced vigor on alfalfa is the potato leafhopper.

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