As part of the
- More information on the UC Turf Disease Diagnostic Lab and Turf Program can be found at http://ucrturf.ucr.edu/ and www.turfpathology.ucr.edu
- More information on many of the specific diseases can be found at http://www.ipm.ucdavis.edu/PMG/selectnewpest.turfgrass.html
- If you wish to unsubscribe from this service, please reply to this message with the subject line "Unsubscribe to UCR Disease Update"
- You may forward this to parties who may be interested, please have them e-mail me with the subject line "Subscribe to UCR Disease Update" to subscribe.
Outlook and Summary: August 25, 2008
Problems of annual bluegrass continue to be a problem – from Waitea Patch to heat and drought stress. Only a month left until the end of the summer – a return to a less stressful time is almost in sight!
“The Man” Has Been Busting My Chops Over Permits
The USDA and CDFA have become very stringent with samples and rejected a few boxes in the last few weeks without supporting sample info. This had lead to delayed diagnoses and affected our ability to get back to you ASAP with a disease solution. Please fill out the lab diagnostic forms and include a copy of the federal and state permits to make sure they don’t intercept and throw your stuff away.
A copy of our USDA and CDFA permits can be found here:
http://www.turfpathology.ucr.edu/Downloads/permits/USDApermit76444.pdf
http://www.turfpathology.ucr.edu/Downloads/permits/CDFApermit2443.pdf
Just download, print and put a copy of each inside your box when you send the samples.
OLD NEWS
Anthracnose Best management Practices
The latest issue of GCSAA’s Golf Course Management’s Research Section is dedicated exclusively to pests of annual bluegrass. These include annual bluegrass weevil (ABW) and anthracnose. Check them out!
The anthracnose article covers a lot
of ground, and the ABW article features a pest that is not in
Read it online here: http://gcsaa.org/GCM/Default.aspx
Help Us Help You – Fill Out Those Sample Information Sheets
Please make sure to download and fill out the sample information forms when sending in diagnostic samples. Tracking down distributors and superintendents takes time away from diagnosing other samples in the lab, and most of all, we want to get the right diagnosis to the right person, right away. Thanks!
| Location |
Highs (ºF) |
Lows (ºF) |
Soil Temps (6-inch) |
Outlook |
Possible Major Diseases |
||||||||
| (CIMIS location ) |
Min |
Max |
Min |
Max |
(ºF) |
M |
T |
W |
R |
F |
Sa |
Su |
(Weather Based) |
| 25 |
26 |
27 |
28 |
29 |
30 |
31 |
|||||||
| |
96 |
104 |
68 |
74 |
78 |
S |
S |
S |
S |
MS |
S |
S |
Anthracnose, Pythium Blight, Rhizoctonia Sheath and Leaf Spot, Summer Patch |
| |
77 |
83 |
63 |
66 |
77 |
MS |
PC |
MS |
PC |
PC |
PC |
PC |
Dollar Spot, Gray Leaf Spot, Rhizoctonia Blight on Cool Season Turfgrass,Southern Blight, Waitea Patch, Summer Patch |
| |
79 |
85 |
64 |
67 |
72 |
S |
S |
S |
S |
S |
S |
S |
Dollar Spot, Gray Leaf Spot, Rhizoctonia Blight on Cool Season Turfgrass, Southern Blight, Waitea Patch, Summer Patch |
| |
65 |
75 |
54 |
57 |
68 |
MS |
PC |
S |
PC |
PC |
PC |
S |
Dollar Spot, Yellow Patch, Rhizoctonia Blight on Warm Season Turfgrass, Waitea Patch, Summer Patch |
| |
102 |
107 |
77 |
83 |
87 |
PC |
MS |
PC |
PC |
PC |
T-S |
T-S |
Anthracnose, Pythium Blight, Rhizoctonia Sheath and Leaf Spot, Summer Patch |
| |
93 |
99 |
62 |
67 |
76 |
PC |
S |
S |
T-S |
MS |
MS |
S |
Anthracnose,Rhizoctonia Blight on Cool Season Turfgrass, Rhizoctonia Sheath and Leaf Spot, Southern Bight, Summer Patch |
| |
89 |
103 |
57 |
65 |
74 |
S |
S |
S |
S |
S |
S |
S |
Anthracnose, Dollar Spot, Rhizoctonia Blight on Cool Season Turfgrass, Rhizoctonia Sheath and Leaf Spot, Southern Blight, Summer Patch |
| |
73 |
76 |
68 |
69 |
na |
PC |
PC |
PC |
PC |
PC |
PC |
PC |
Dollar Spot, Gray Leaf Spot, Pythium Blight, Rhizoctonia Blight on Cool Season Turfgrass, Rhizoctonia Blight on Warm Season Turfgrass, Southern Blight, Waitea Patch, Yellow Patch |
| |
64 |
79 |
57 |
65 |
na |
MS |
S |
S |
PC |
PC |
PC |
PC |
Dollar Spot, Rhizoctonia Blight on Cool Season Turfgrass, Rhizoctonia Blight on Warm Season Turfgrass, Southern Blight, Yellow Patch, Waitea Patch, Take All, Pink Snow Mold |
| |
79 |
93 |
57 |
65 |
na |
S |
S |
S |
S |
MS |
S |
S |
Anthracnose, Dollar Spot, Gray Leaf Spot, Rhizoctonia Blight on Cool Season Turfgrass, Southern Blight,Waitea Patch, Summer Patch |
| |
77 |
85 |
55 |
59 |
70 |
S |
PC |
PC |
S |
MS |
S |
S |
Dollar Spot, Gray Leaf Spot, Rhizoctonia Blight on Cool Season Turfgrass,Southern Blight, Waitea Patch, Summer Patch |
| |
72 |
75 |
62 |
65 |
76 |
MS |
PC |
MS |
PC |
PC |
PC |
PC |
Dollar Spot, Gray Leaf Spot, Rhizoctonia Blight on Cool Season Turfgrass,Southern Blight, Waitea Patch, Summer Patch |
Key to weather: S = sunny, MS= mostly sunny, PC = partially cloudy, C = cloudy, W = windy, SH = showers, R = rain, / = mixed weather
| Sample |
Date Received |
Location by County |
Host |
Disease |
Abiotic Problems |
| 215 |
8/12/2008 |
|
|
Algae, Bipolaris, Curvularia |
|
| 216 |
8/12/2008 |
|
Annual bluegrass, Perennial Ryegrass |
Rhizoctonia Blight, Bipolaris, Curvularia |
Chemical Burn - Excess N |
| 217-219 |
8/12/2008 |
|
Perennial Ryegrass |
Rhizoctonia Blight |
|
| 220-223 |
8/12/2008 |
|
Annual bluegrass |
Algae |
Drought/heat/or mechanical |
| 224-225 |
8/14/2008 |
|
Annual bluegrass |
Anthracnose |
Black Layer, high salts |
| 226 |
8/14/2008 |
Shasta |
Annual bluegrass, Perennial Ryegrass |
Southern Blight, Anthracnose, Leptosphaerulina |
|
| 227 |
8/15/2008 |
|
Annual bluegrass |
Fusarium Blight |
|
| 228 |
8/12/2008 |
|
Annual bluegrass, Creeping bentgrass |
Curvularia |
Heat/drought stress |
| 229-230 |
8/15/2008 |
|
Annual bluegrass |
Fairy Ring |
|
| 231-232 |
8/19/2008 |
|
Perennial Ryegrass, Annual bluegrass |
Summer Patch, Myrothecium |
|
| 233-234 |
8/19/2008 |
|
Creeping bentgrass, Annual bluegrass |
Waitea Patch |
|
| 235-238 |
8/19/2008 |
|
Annual bluegrass |
Waitea Patch |
|
| 239-241 |
8/19/2008 |
|
Annual bluegrass |
High salts, High nitrogen |
|
| 242-243 |
8/20/2008 |
|
Annual bluegrass |
High salts |
|
| 244-245 |
8/20/2008 |
|
Creeping bentgrass, Annual bluegrass |
Heat/drought stress |
|
| 246 |
8/20/2008 |
|
Annual bluegrass |
Heat/drought stress |