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Showing posts from May, 2014

Frost on the Pumpkins this Morning, May 14

Frost on the Pumpkins....

The morning started with a nice white coating of frost across our farm.  The forecast for morning temperatures over the next few days sound like we will see frost every morning until this weekend.  The good news, the rain passed by and the sun is shining. Alfalfa fields are greening up and many stands look pretty good around the area.  However, there are some dead spots in fields, perhaps where water stood or ice ponds formed, but these are small. We just need some warm weather to push some growth of a very needed forage crop.

Having said this, there are reports of winter injury from areas west of Rochester. The potential issues: 1) snow blew off the fields, exposing crowns to bitter cold winter temperatures, 2) if the last cutting was taken in September, the plants would have gone into the long winter with lower than desirable root reserves, and 3) perhaps a late cutting left shorter than desirable residue, thus reducing the plants ability to hold the precio…

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Black Cutworm Moth Captures - April 26-May 2

Black Cutworm Update Source: Lisa Behnken, UM Extension Educator - Crops, Bruce Potter, UM IPM Specialist SWROC and Travis Vollmer, University of Minnesota Extension. The Black Cutworm trap at my farm in Olmsted County, located south of Rochester has been very quiet.  Zero moths caught this past week, and only a few over the past several weeks. 

However, there are a few Hot Spots for the week of April 26- May 2 in  southern Minnesota, which can be seen on the map below.  Concerns arises when a trap captures eight or more black cutworm moths over a two night period.  The Faribault County trap had a season high of 16 moths on April 28 and in Lac Qui Parle County there were 8 moths April 28-29.

The Black Cutworm life cycle, from egg to moth takes 1 1/2 months or more. The degree-day model for development predicts larvae large enough to cut plants after 300 degree days have accumulated. (base 50 degrees, just like corn). Only larger, 4th - 6th instar cutworm larvae can cut corn plants. …