By WCM Staff on
9/11/2008 11:42 AM
It is a good time of year to learn about several common soybean diseases. If you just drive by your soybean fields this time of year, you could easily mistake maturity and natural plant death for several diseases or possibly early senescence due to drought.
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By WCM Staff on
8/28/2008 8:04 AM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since August 13, 2008.
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By WCM Staff on
8/21/2008 3:14 PM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since August 13, 2008.
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By WCM Staff on
8/13/2008 2:05 PM
As we have moved into our late season disease assessments for 2008 in corn around the state, we have noted the following diseases throughout the year (Figures 1-6):
Common rust (Puccinia sorghi)
Eyespot (Kabatiella zeae)
Northern corn leaf spot (Bipolaris zeicola)
Northern corn leaf blight (Exserohilum turcicum)
Anthracnose (Colletotrichum graminicola)
Gray leaf spot (Cercospora zeae-maydis)
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By WCM Staff on
8/13/2008 1:46 PM
Based on various reports from around the state in 2008, probably the number one disease of corn that has been noted and mentioned has been common rust, caused by Puccinia sorghi. Given the differences in the reports, the goal of this article is provide a method to help in estimating the severity of common rust on the leaf surface.
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By WCM Staff on
8/13/2008 9:21 AM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since July 16, 2008
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By WCM Staff on
7/30/2008 1:32 PM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since July 16, 2008:
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By WCM Staff on
7/16/2008 2:23 PM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since July 9, 2008:
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By WCM Staff on
7/9/2008 1:18 PM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since July 2, 2008:
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By WCM Staff on
7/9/2008 11:08 AM
We have started to receive questions and initial reports regarding the need to spray foliar fungicides in corn and soybean. Many of these questions have been received in part because of initial observations of lesions on both plants. Actively scouting fields is an important step in the decision making process about whether or not a foliar fungicide is needed.
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By WCM Staff on
7/3/2008 11:37 AM
A recent survey of our winter wheat variety trials found Fusarium Head Blight (FHB) or Head Scab at all four of our variety testing locations: Janesville, Arlington, Lancaster, and Chilton. At these locations, both incidence and severity are relatively low. At our most uniform and prevalent FHB site (Lancaster) our ratings show an FHB index range from 0.6 to 8.8 among the varieties.
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By WCM Staff on
7/2/2008 1:22 PM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since June 25, 2008
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By WCM Staff on
6/25/2008 10:28 AM
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since June 18, 2008:
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By WCM Staff on
6/25/2008 10:15 AM
Wheat head scab (synonym, wheat head blight), caused by several species of Fusarium, but in the U.S., mainly Fusarium graminearum, was noted in a routine survey of the winter wheat variety trials during the week of June 16th (Figure 1). This was not an unexpected discovery given the recent weather conditions during the flowering period.
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