Volume: 5 Issue: 7 Date: August 9, 2013 Potato Bytes
Klamath Basin Research and Extension Center 6941 Washburn Way Klamath Falls, Oregon 97603 (tel)541‐883‐4590 (fax) 541‐883‐4596 h p://oregonstate.edu/dept/kbrec Brian A. Charlton, Research and Extension Agent ‐541‐591‐1255 Nichole Baley, Faculty Research Assistant 530‐598‐8533 Potato Crop Water Use
Early Planting
inch / day
0.40
0.30
'99‐'12 Avg
0.20
2013
0.10
Inside this Issue: Crop Water Use: 1 Soil Degree Data: 2 Insect Trap Report 3 0.00
5/15
6/15
7/15
8/15
9/15
700
0.30
680
0.20
'99‐'12 Avg
0.10
2013
660
640
620
0.00
600
6/5
KBREC 7/5
8/5
99
9/5
Actual Water Use: Inches 600
Early Late Last 3 days: 0.77 0.77 Last 7 days: 1.96 1.93 Last 14 days: 4.05 3.9 Es mated Water Use: Next 7 days 1.82 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Total P-Day Accumulation
Estimated Emergence - August 1
Plan ng Date: Historical P-day Accumulation
June 1 -September 15
720
0.40
1.73 500
400
p‐days
inch / day
Potato Crop Water Use
Late Planting
May 15
300
June 1
June 15
200
100
0
2009
2010
2011
2012
2013
Volume: 5 Issue: 7 Date: August 9, 2013 Potato Bytes
Klamath Basin Research and Extension Center 6941 Washburn Way Klamath Falls, Oregon 97603 (tel)541‐883‐4590 (fax) 541‐883‐4596 h p://oregonstate.edu/dept/kbrec Brian A. Charlton, Research and Extension Agent ‐541‐591‐1255 Nichole Baley, Faculty Research Assistant 530‐598‐8533 Soil Degree‐Day Accumula on ‐‐ KBREC and IREC 2013 For Root‐knot nematode control, Vydate applica ons should begin at 800 degree‐days (DD5C). To es mate that date, add the number of Total degree‐days "Total" on the day you planted to 800. Where that value occurs in the "Total" column es mates the date on which 800 DD5C will occur in that field. It is recommended that applica ons con nue every 14 days un l harvest. For Stubby‐root nematode control, Vydate applica ons should begin at 0 degree‐days (at plan ng) and followed by an applica on at the first full irriga on following emergence. An addi onal applica on is recommended at 800 degree‐days (DD5C). Volume: 5 Issue: 7 Date: August 9, 2013 Potato Bytes
Klamath Basin Research and Extension Center 6941 Washburn Way Klamath Falls, Oregon 97603 (tel)541‐883‐4590 (fax) 541‐883‐4596 h p://oregonstate.edu/dept/kbrec Brian A. Charlton, Research and Extension Agent ‐541‐591‐1255 Nichole Baley, Faculty Research Assistant 530‐598‐8533 Insect Trap Report
July 30 - August 5
Klamath County
TRAP
1
2
3
4
5
6
7
LOCATION
State Line & Wilson Rd
Highway 50
Pickett Road
Merrill Pit Road
Taylor Road
Lower Lake
Cross Road
8
9
10
Running Y
Reeder Road
Cheyne Road
PTW
0
0
0
0
0
BLH
2
1
3
1
2
OLH
33
47
31
7
30
PP
0
0
0
0
0
OP
4
3
2
0
0
0
0
0
0
0
2
1
2
1
0
86
90
35
65
14
0
0
0
0
0
5
6
27
0
0
PTW: Potato Tuberworm
BLH: Beet Leafhoppers
OLH: Other Leafhoppers
PP: Potato Psyllids
OP: Other Psyllids
Modoc and Siskiyou
11
12
13
14
Road 112 Tulelake
Road 103 Tulelake
South Panhandle
Copic Bay
0
0
0
0
0
0
2
1
5
20
29
19
0
0
0
1
1
19
3
0
15
East West Road
0
1
6
0
5
Potato
GPA
OA
PP
OP
Aphid Traps
1
2
3
4
5
6
7
8
9
10 11
Keno
Lower Lake West
Lower Lake East
East Malin
North Malin
South Poe Valley
East Bonanza
North Bonanza
East Yonna Valley
North Hildabrand
East Swan Lake
GPA: Green Peach Aphid
OA: Other Aphids