By WCM Staff on
6/14/2007 10:19 AM
Although a little late for winter annuals and perennials, the Wisconsin Weed Garden is now officially open for business.
Read More »
|
By WCM Staff on
6/13/2007 12:19 PM
Although it is hard to say report anything good about a troublesome weed like waterhemp, Illinois weed scientists recently reported good news on how rapidly waterhemp dissipates from the seedbank.
Read More »
|
By WCM Staff on
6/13/2007 12:07 PM
Over the past several days, I’ve noticed several corn fields that are over-due for postemergence weed control.
Read More »
|
By WCM Staff on
6/7/2007 1:11 PM
Jerry taught this six-week course 30 times to students in the UW College of Agricultural and Life Sciences Farm and Industry Short Course Program. His presentations have been specially recorded for this DVD in Flash Player format.
Read More »
|
By WCM Staff on
6/7/2007 1:09 PM
In Wisconsin, weed resistance to glyphosate has not been confirmed, but there have been many reports of variable or inconsistent responses of common lambsquarters to glyphosate in Roundup Ready soybean fields.
Read More »
|
By WCM Staff on
5/31/2007 11:47 AM
Here are a few weeds that have been sent in for identification in the past couple weeks. Test your weed identification skills before looking at the answers below.
Read More »
|
By WCM Staff on
5/31/2007 11:44 AM
Dust could affect glyphosate’s activity because glyphosate is tightly bound by soil, which is the reason why glyphosate lacks residual activity. On a leaf, the glyphosate could bind to the dust and not be available to be absorbed into the leaf.
Read More »
|
By WCM Staff on
5/31/2007 11:33 AM
I have received a few calls about the need for residual activity with postemergence herbicide applications in corn. I’m going to focus on grass weeds, which were the basis for the calls. Article by Chris Boerboom, Extension Weed Scientist
Read More »
|
By WCM Staff on
5/24/2007 11:26 AM
A new invasive mustard called Hill mustard has recently been observed spreading throughout the southern part of the state.
Read More »
|
By WCM Staff on
5/23/2007 3:58 PM
In regards to postemergence herbicides in corn, I think these three simple rules capture most of what needs to be said.
Read More »
|
By WCM Staff on
5/23/2007 1:05 PM
Postemergence herbicide programs in corn should make growers and agronomists think hard about the question of “When does weed competition start to affect corn yield potential?” A few bushels lost to weed competition can easily result in a $10/a or $15/a loss or more.
Read More »
|
By WCM Staff on
5/17/2007 11:51 AM
The overall conclusions of studies in Michigan and Indiana were that tunneling by the leaf-miner larvae did not affect the level of lambsquarters control by glyphosate. Even when the beet petiole borer was present and tunneling, control of 10-inch tall lambsquarters was still greater than 90%. Thus, insect tunneling was not contributing to lambsquarters control problems with glyphosate, but the researchers had more difficulty controlling larger lambsquarters than smaller plants.
Read More »
|
By WCM Staff on
5/17/2007 11:49 AM
Many fields in Wisconsin received a welcomed rain for activating preemergence herbicides in the past couple days. Still, questions may remain if the rain came soon enough to activate these preemergence herbicides before weeds had started to emerge.
Read More »
|
By WCM Staff on
5/10/2007 3:04 PM
Spring is a time to enjoy lush new green growth and a new beginning that will hopefully lead to a bountiful summer harvest. Unfortunately, the weeds in your vegetable garden are also enjoying the abundant sunshine and soil moisture. However, there are a few weed management strategies that can be implemented in the early season that will reduce the hours of hand-weeding and hoeing later in the growing season. The old saying “an ounce of prevention is worth a pound of cure” holds true in the case of weeds.
Read More »
|