Crop & Pest Report

Accessibility


| Share

Update on Leafy Spurge Flea Beetles Degree Days (07/05/18)

Degree days are moving fast! Southeast area of ND is almost at the end of the period for collecting leafy spurge flea beetles, while the northern areas of the state have just accumulated enough degree days to start collecting leaf spurge flea beetles for biocontrol of the noxious weed leafy spurge.

Update on Leafy Spurge Flea Beetles Degree Days

Degree days are moving fast! Southeast area of ND is almost at the end of the period for collecting leafy spurge flea beetles, while the northern areas of the state have just accumulated enough degree days to start collecting leaf spurge flea beetles for biocontrol of the noxious weed leafy spurge. Flea beetles are collected between 1,200 and 1,600 AGDD using the sunflower GDD model. Use the sunflower degree day map on NDAWN and enter“2018-03-01” for planting date and select “growing degree day” for map type.

 

 knodel.1

Janet J. Knodel

Extension Entomologist


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This site is supported in part by the Crop Protection and Pest Management Program [grant no. 2017-70006-27144/accession 1013592] from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed are those of the website author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

USDA logo

Creative Commons License
Feel free to use and share this content, but please do so under the conditions of our Creative Commons license and our Rules for Use. Thanks.