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Potato Leafhoppers
Potato leafhopper is the major dry bean pest in Michigan. PLH do not
overwinter in the Midwest but are carried in each spring by southerly
winds. The adult leafhopper is yellowish green and about 1/8 inch
long with a row of six white spots just behind the head. Nymphs are
smaller versions of the adult, lacking wings and ability to fly. The
development time between the egg and adult stage is usually 25 to
30 days, depending on the weather. |
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Leaf Hopper Damage
Both the adult and nymph stages cause damage to dry beans. Leafhoppers
feed by sucking water and nutrients from the leaves. |
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| The first signs of leafhopper
feeding are pale leaf veins and curled leaves. "Hopperburn" can result
from continued feeding. This is a condition resulting in triangular
yellowing or browning of the leaf tip. |
