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Potato Leafhopper Management in Alfalfa

return to Potato Leafhopper Management in Alfalfa, CONTENTS

Analysis

  • Use of the sequential sampling plan will indicate the presence of an economic population.

N=No management needed at this time, M=Management needed as soon as possible

Management Alternatives

  • Early harvest of alfalfa can be effective in controlling economic populations. When harvesting, remember the following rules:

    • Clean harvest whole fields.

    • Green-chopping in strips is a poor management practice.

  • Chemical control is sometimes necessary when economic populations occur early in the cutting. Consult the current Cornell recommendations for potato leafhopper larval control.

Implementation

  • Treat only fields with a canopy adequate for spray reception.

  • Clean harvest whole fields to eliminate harborage sites.

  • Document all actions taken.

Reevaluation

  • Recheck fields after harvest to determine population status.

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