UC Turf Disease Diagnostic Lab Weekly Report

 

As part of the University of California Turf Disease Diagnostic Lab services, a weekly report is being sent out to update clients of current disease outbreaks in California and nearby locations with a focus on diseases of golf course turf.  The update will be sent out on a weekly basis.  This update is still a working version, if you have comments about how it can be changed or improved, please e-mail me your suggestions.   If you receive duplicate messages, please let me know. 

- 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

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University of California Turf Disease Diagnostic Report: February 1, 2010

 

 Quick 7 day Forecasts

Location

Highs (F)

Lows (F)

Soil Temps (6-inch)

Outlook

Possible Major Diseases 

(CIMIS location )

Min

Max

Min

Max

(F)

M

T

W

R

F

S

Su

(Weather Based)

1

2

3

4

5

6

7

 

Fresno (80)

55

62

41

48

50

MC

Sh

C/S

C

Rn

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Rhizoctonia Blight on Warm Season Turfgrass, Take-All Patch, Yellow Patch

Irvine (174)

61

64

44

49

54

MC

C

Sh

C

Sh

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Rhizoctonia Blight on Warm Season Turfgrass, Take-All Patch, Yellow Patch

Los Angeles (133)

61

64

45

50

50

MC

C

Sh

PC

Sh

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Rhizoctonia Blight on Warm Season Turfgrass, Take-All Patch, Yellow Patch

Monterey (19)

58

60

44

50

53

MC

Sh

Sh

Sh

Rn

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Take-All Patch, Yellow Patch

Palm Springs (118)

67

71

48

51

64

PC

MC

Sh

MC

MC

MC

PC

Brown Ring (Waitea) Patch, Dollar Spot, Rapid Blight, Rhizoctonia Blight on Warm Season Turfgrass

Riverside (44)

63

66

40

44

51

C

C

Sh

MC

C

Sh

Sh

Anthracnose Basal Rot, Brown Ring (Waitea) Patch, Pink Snow Mold, Rhizoctonia Blight on Warm Season Turfgrass, Take-All Patch, Yellow Patch

Sacramento (131)

55

56

43

49

50

C

Sh

Sh

C

Rn

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Take-All Patch, Yellow Patch

San Diego (173)

62

63

50

53

56

MC

C

Sh

PC

Sh

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Rhizoctonia Blight on Warm Season Turfgrass, Take-All Patch, Yellow Patch

San Francisco (na)

54

56

49

54

na

Sh

Sh

Sh

Sh

Rn

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Take-All Patch, Yellow Patch

San Jose (132)

57

60

44

49

na

MC

Sh

Sh

Sh

Rn

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Take-All Patch, Yellow Patch

San Luis Obispo (52)

59

63

42

50

53

MC

Sh

Sh

C

Rn

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Rhizoctonia Blight on Warm Season Turfgrass, Take-All Patch, Yellow Patch

Santa Barbara (107)

61

63

45

50

56

MC

Sh

Sh

C

Sh

Sh

Sh

Anthracnose Basal Rot, Pink Snow Mold, Rhizoctonia Blight on Warm Season Turfgrass, Take-All Patch, Yellow Patch

soil temps reflect the average of the previous 7 days based on CIMIS station data at 6-inch depth. S = sunny, MS = mostly sunny, PC = partially cloudy, MC = mostly cloudy , C = cloudy, Sh = showers, Rn = rain, TS = thunderstorms

 

Recently Diagnosed Disease Activity

Week:

1/25/10-1/29/10

Sample

Date Received

Location

Host

Disease

Abiotic Problems

28-31

1/27/2010

Maricopa (AZ)

Bermudagrass, ryegrass

Curvularia, Leptosphaerulina

32-33

1/26/2010

Riverside

Creeping bentgass, bermudagrass, ryegrass

Algae, Summer Patch

34

1/27/2010

Snohomish (WA)

Annual bluegrass

Pythium Root Rot

35-36

1/28/2010

Monterey

Ryegrass, Bentgrass mix

Rhizoctonia Brown Patch, Pythium Root Rot

37

1/28/2010

Placer

Annual bluegrass, creeping bentgrass

Winter Kill

38-39

1/29/2010

Orange

Creeping bentgrass

no pathogen, water-logging