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Potato
leafhopper
Rufus
Isaacs, MSU Entomology |
| Home > Scouting guide> potato leafhopper |
| The
adult leafhopper is pale to bright green and about 1/8 inch long.
Adults are very active, jumping, flying or running when disturbed.
The immature forms, or nymphs, are pale green and wingless. They run
forward, backward or sideways when disturbed. The potato leafhopper
does not overwinter north of the Gulf states. Adults migrate north
each spring on southerly winds and are deposited during May and June
in spring rains. |
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| Adult
potato leafhopper. 3 mm. |
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| Potato leafhoppers can be very destructive on hybrid or vinifera varieties that are sensitive to the saliva they inject while feeding. Feeding is concentrated on young tissues near the shoot tips. On sensitive varieties, only a few adults are needed to cause leaf yellowing and cupping or shortened shoot internodes. This insect is typically a minor pest in labrusca grapes. |
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Sensitive
varieties can display yellowed leaves and “cupping”
after potato leafhopper feeding. |
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| Comparison
of grape and potato leafhoppers |
| Character |
Grape
leafhopper |
Potato
leafhopper |
| Color |
Light
yellow |
Green-yellow |
| Behavior |
Walks
forward |
Walks
sideways |
| Postition
on vine |
On
inner canopy leaves |
On
leaves on ends of shoots |
| Most
susceptible |
Labrusca
grapes |
Vinifera
and hybrid grapes |
| Damage
symptoms |
Stippling
on leaf surface, becoming red/brown when severe. |
Leaf
yellowing and cupping on wine grapes. Stippling on juice grape
leaves. |
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| Other
leafhoppers |
| Threebanded
leafhopper, Erythroneura tricincta, and Virginia creeper leafhopper,
Erythroneura ziczac, can both be found in eastern U.S. vineyards.
Their biologies are similar to that of grape leafhopper. The threebanded
leafhopper adult is brown and black with some orange flecks on the
wings. The Virginia creeper leafhopper adult is pale yellowish or
white with a zigzag stripe down each wing and distinctly red cross-veins. |
| Additional
information
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Funding for this web site provided by Project GREEEN, American Farmland Trust, EPA Region 5's Strategic Agricultural Initiative program, The National Foundation for IPM Education, the Center for Agricultural Partnerships and the MSU Integrated Pest Management Program in collaboration with MSU Extension and the Michigan Agricultural Experiment Station. Partially support from NC-IPM Center.
05/26/11 Contact: E. Haney |
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