OKLAHOMA ALFALFA PRODUCTION CALENDAR

Alfalfa Weevil

  • January 1 is the starting date for day-degree (DD) accumulations used with the "shake bucket" scouting method for decisions on spraying for weevil larvae. Field sampling need not begin until 150 DD have accumulated from January 1.
  • Winter grazing of established stands to remove foliar growth that accumulated since the last fall harvest can reduce overwintering egg populations by 50-70% and result in lower numbers of larvae in spring. 

Short Production Tips for January

Information Capsules

Short OSU Extension Publications
Alfalfa Weevil and Its Management in Oklahoma F-2097
Scouting for the Alfalfa Weevil in Oklahoma F-7177

OSU Extension Circulars 

   Alfalfa Weevil Photographs 

  Insect Sampling Photographs 

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