PARKING SPOT for 15 minute drop-off!! The spot is outside the north end of Townsend Hall, next to the motorcycle parking, down the row from the handicapped spots. This will be very helpful for the Plant Clinic and Soil Testing!
Christmas Tree Class -Feb 21, 2012, from 4 to 6 PM at Delaware Department of Ag, 2320 S DuPont Hwy, Dover, DE.
Title: Christmas Tree Production
Description: Learn to identify and manage important insect pests and diseases that affect Christmas Trees in production.
Instructors: Brian Kunkel, Nancy Gregory, Jeffrey Brothers
NEW! Nematode Sampling Video
Featuring Bob Mulrooney - link below
UD CANR YouTube
We have been receiving questions about mushrooms or toadstools coming up in landscapes. Fungi are natural decomposers doing what they do best, and usually will not harm plantings.
September 28, 2011
New virus confirmed in Delaware, Maryland, and Virginia soybeans. We have seen samples from DE and MD with unusual leaf spot symptoms that are often limited to the veins. There is a yellowing and reddening of the tissue and veins. The symptoms can progress to a necrosis of the tissue around the veins as well. This virus disease, soybean vein necrosis virus, has been confirmed by PCR for samples from all three counties in Delaware. Symptoms can resemble Phyllosticta leaf spot or Cercospora leaf blight caused by Cercospora kikuchii, which also causes purple seed stain.
Symptoms of soybean vein necrosis virus NFG
Brown Marmorated Stink Bug 2011
Link to University of Maryland Fact Sheet BMSB
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THOUSAND CANKERS DISEASE OF WALNUT HAS BEEN DETECTED IN PENNSYLVANIA
Thousand Cankers Disease of Walnut was confirmed on August 9, 2011 in Bucks County, PA. This find comes three weeks after the find in Virginia. This disease may already be present in our area, but has not been detected. We do not have large stands of walnut trees, most are in residential neighborhoods and most may be in New Castle County. Now is the time to be on the lookout for dying walnut trees showing thinning of branches and canopy. Samples should be submitted to the UD Plant Diagnostic Clinic. Please see the PA press release:
http://www.agriculture.state.pa.us/portal/server.pt/gateway/PTARGS_0_2_75292_10297_0_43/AgWebsite/ProgramDetail.aspx?name=Thousand-Cankers-Disease&navid=12&parentnavid=0&palid=137&
THOUSAND CANKERS DISEASE OF WALNUT HAS BEEN DETECTED IN CENTRAL VIRGINIA
The Virginia Department of Agriculture has detected Thousand Cankers Disease (TCD) in central Virginia along the I-95 corridor. A quarantine is in place against movement of walnut trees and related products. TCD is a disease that attacks walnut trees, Juglans spp. The causal fungus Geosmithia morbida is carried by the walnut twig beetle, Pityophthorus juglandis. Small cankers form under the bark of the tree, it worsens and ultimately trees die. Dieback in the tops of trees is usually the first symptom. This find is the first time the disease has been found east of Tennessee. VA press release: http://www.vdacs.virginia.gov/news/releases-b/072111tcd.shtml
MD Fact Sheet:
http://www.ppdl.purdue.edu/PPDL/pubs/walnutthousandcankersdisease.pdf
Update - Imprelis Herbicide Damage
Damage to trees in Delaware, Pennsylvania, and New Jersey followed commercial applications of a relatively new broadleaf turfgrass herbicide from DuPont called Imprelis (aminocyclopyrachlor). We cannot actually test for the chemical residue, so the diagnosis remains as “suspected”.
Monitor the affected trees. Imprelis should leach readily from sandier soils.
DuPont has created a web site to deal with cutomer questions and posted a hotline number:
http://www.imprelis-facts.com/
Follow this link to general Plant Disease Info
- Note: NEMATODE ASSAY PROGRAM
- All soil samples for nematode analysis must have a Nematode assay information sheet attached (pdf link on left menu this page). There is a $10.00 fee per sample. Samples do not need to be in a specific Nematode Sample Bag. Send to 152 Townsend Hall. Reports will be sent by e-mail or fax.
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Soybean Cyst Nematode Fact Sheet
SCN Management
Click below for information on:
Information on Rust Diseases of Wheat and Barley for Delaware
- Control of Artillery Fungus in Mulch!
