By WCM Staff on 5/29/2008 10:26:00 AM

Wisconsin Crop Manager, Volume 15 Number 12, May 29, 2008 compiled PDF for print or download

Read More »

By WCM Staff on 5/29/2008 10:54 AM

In the southern part of Wisconsin we have reached or exceeded 300 weevil degree days and damage reports have been on the quiet side. This could be a result of low weevil populations or a weather-friendly cutting schedule. If it was the latter, it might be worth some time to spot check fields for signs of damage to second crop regrowth.

Read More »

By WCM Staff on 5/29/2008 8:56 AM

What is the best timing to control weeds with a herbicide in corn? Does your answer change if question #1 is changed to “What is the best timing to manage weeds in corn?”

Read More »

By WCM Staff on 5/28/2008 3:52 PM

Now isn’t the time we normally think about widespread armyworm damage in corn. However, it is the time when migrating moths are moving into the state and may cause damage to scattered seedling corn fields when/if field conditions are favorable. This spring migration is unpredictable in terms of incidence and severity.

Read More »

By WCM Staff on 5/28/2008 2:19 PM

File for print or viewing the Wisconsin Vegetable Crop Update May 28, 2008, Issue #2

Read More »

By WCM Staff on 5/28/2008 2:05 PM

Successful preemergence corn herbicide programs require two key components. First, the programs need dry weather (with limited wind) in order to have the preemergence herbicides applied. Second, the programs generally need 0.5 to 1 inch of rainfall to activate the herbicide after the application, which moves the herbicide from the soil surface into the zone where weeds are germinating.

Read More »

By WCM Staff on 5/27/2008 2:01 PM

Degree day accumulations (base 41º) in southern Wisconsin indicates stalk borer eggs are hatching and migration to corn can be expected soon. Although there hasn’t been a lot of interest in their control recently, high corn/input prices may indicate a closer look this year.

Read More »

By WCM Staff on 5/27/2008 11:46 AM

Winter wheat is at or near to the flag leaf (Feekes 8) growth stage throughout the state. This is an important time to actively scout wheat fields to most effectively determine if the use of a foliar fungicide will be needed.

Read More »

By WCM Staff on 5/22/2008 2:09:00 PM

Wisconsin Crop Manager, Volume 15 Number 11, May 22, 2008 compiled PDF for print or download

Read More »

By WCM Staff on 5/22/2008 11:35 AM

File for print or viewing the Wisconsin Vegetable Crop Update May 21, 2008, Issue #1

Read More »

By WCM Staff on 5/21/2008 5:15 PM

Western bean cutworm (WBC), traditionally a pest of the western Corn Belt, is an emerging pest in Wisconsin. As this pest will likely become established after arrival in a state, it is important that growers and agricultural professionals know how to identify and manage it.

Read More »

By WCM Staff on 5/21/2008 5:08 PM

With the relatively cool spring temperatures this year, insect development degree-days have been accumulating about 1-2 weeks slower than a typical spring. Corn planting is finishing up in Wisconsin, and growers and consultants will begin to ask about corn rootworm egg hatch and expected time frame of first through third larval instar corn rootworm feeding on corn roots.

Read More »

By WCM Staff on 5/21/2008 2:53 PM

The potential for crop injury from herbicide contaminated sprayers is generally greatest with postemergence applications. Without proper clean out of sprayers, herbicide residues from one spray load can contaminate the next load and injury a sensitive crop. This is logical because the spray is making direct contact with the crops and is not being diluted with soil as with preemergence applications. Also, postemergence herbicides obviously have foliar activity, which may not be the case with all of the preemergence herbicides.

Read More »

By WCM Staff on 5/21/2008 2:34 PM

Many of us, including myself, have planted under less than ideal soil conditions this spring. Often the ground was worked a little on the wet side leading to clods and variable seeding depths for our soybean crop. Early reports of variable and delayed emergence in conventional (more common) and no-till soybean is raising replant and seed viability questions in several areas across the Midwest.

Read More »