Well, the rain we got on Monday was pretty wide spread and more and more questions have come up on what issues we may have with N leaching. This from MN is pretty good, click here. I took the rest of the week off, but in order to get out of some of the honey do chores, I told her I have to get this update out, this one took me
forever to do, but I still have to clean the shop out tomorrow.
Had some calls on corn going 180 with the wind and rain we had on Monday. I saw some myself and I am pretty sure it will right it self. Remember as long as the internodes are enlongating it will head North. I include this picture from several years ago. The top picture was take on July 12th and the bottom picture was taken on
July 16th , of course the second guy is only 5’2” tall and the first guy is 6’4” tall
This must be bug week in Chilton, first it is Tim Pagel with Country Visions Coop at Chilton. A solid agronomist, but as entomological photographer, not so much. He did send this picture to me on Monday of a Zebra caterpillar, at little out of focus. This insect has a wide host range and recently has become more common N of the border on canola. In our area I would expect to find it on alfalfa. It rarely gets to a level where we have to do anything about it, it is striking with yellow and black stripes down the body.
Then we get this from his colleague Ben Franz with Country Visions Coop at Chilton may not quite be up to
Tim on the agronomy side, but his photo skills are pretty good. This is not a picture from the next alien movie; it is a true armyworm that met its doom as the result of a small parasitic wasp. The wasp deposited eggs inside the caterpillar and the parasites consumed the insides and emerged and pupated on the outside of the caterpillar. There are over 60 known parasites of the armyworm, with about 20 key species, this is why we often have issues with first generation armyworm and not the second and third as these little guys increase in population and do a nice job on them, sort of speak.
Then today, I get this from Sara Blatz, the new kid on the block with Country Visions in Chilton, the common
stalk borer, moving in from the edge of the field and tunneling corn plants, see this from the UI on general biology and control. UI stalk borer. Recall, that our VT2 Double pro and our Smartstax do provide control of this pest. She must have been scouting some of that other stuff.
The way this June is shaping up, I think many are going to be thinking about white mold, here is some back
ground info for you from various sources,
DATCP has reported isolated soybean aphid colonies in many areas, while numbers are still low, it would be
wise to bone up on the sampling program, I like the speed sampling program from UM. speed sampling program ag anytime
Michael J Weiss, Ph.D.
Dekalb and Asgrow
W4166 County Road H
Pine River, WI 54965