Aug
7

Check out the PMN webcast on Soybean Vein Necrosis Virus

  Soybean Vein Necrosis Virus is a relatively new virus on soybeans. Over the last two years, we have been conducting surveys in Delaware for this virus and have been collaborating with other plant pathologists to better understand the impacts of this virus…

Jul
24

Residue effects on Stagonospora glume blotch in wheat

Stagonospora glume blotch and leaf blotch is a common disease of Delaware and Maryland wheat fields.  There appears to be a trend of increasing incidence and severity of Stagonospora and other members of the leaf blotch complex (tan spot, Septoria blotch) in many…

Jul
21

Do I need a fungicide on my soybeans?

Fungicide use in soybeans is a somewhat controversial subject in Delaware.  Overall, Delaware soybeans do not suffer to a significant degree from fungal diseases such as white mold or even Frogeye leaf spot.  More commonly, we see brown spot and downy mildew on…

Jul
7

Alert-Late blight nearby

“Late blight has been found on two tomato fields near Chester and Long Valley in Morris County, New Jersey. This is the first report of late blight in the state and region to date”-Andy Wyandt Rutgers With the recent wet weather, it is not surprising that…

Jul
2

Scout for Gray leaf spot and Northern corn leaf blight

Corn in many parts of the state is growing rapidly and tasseling or approaching tassel. Now is a good time to scout fields to see if there are any disease issues that may need attention. With recent wet weather diseases such as Grey…

Jul
1

Stop sale on Nimitz nematicide lifted

The stop sale that was briefly placed on Nimitz® nematicide due to potential label issues is over. The new label has removed tomatoes from the list of labeled crops for the short term. The link to the new label can be found here:…

Jun
24

Explaining Late Blight Lineages

Late blight is a disease that we deal with to some extent in the mid-Atlantic each year.  When reports come in you may see something mentioned about the lineage that was detected.  What exactly are we telling you when we mention this information? …

Jun
22

Soybean Cyst Nematode Resistance in Soybeans

Soybean Cyst Nematodes (SCN) are the most damaging pest/pathogen of soybeans.  Iowa Public Television put together a short, easy to understand video explaining the basics of resistance development in soybeans to SCN, and how nematode populations can shift or change over time.  Click…

Jun
12

Be on the lookout for seedling diseases

Now is the time when you should be on the lookout for seedling diseases in corn and in full season soybeans. Seedling diseases can be categorized as either pre-emergent or post-emergent. Pre-emergent seedling diseases kill the seedling soon after germination or before it…

Jun
7

Cucumber downy mildew present in South Carolina

It is still very early for the onset of downy mildew of cucumbers and other cucurbits in Delaware and Maryland. These diseases cannot overwinter here, and must be reintroduced to our area each year from cucurbit crops in the South. This year, the…

Follow

Get every new post on this blog delivered to your Inbox.

Join other followers: