Volume: 6 Issue: 4 Date: July 25, 2014 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 Potato Crop Water Use
Early Planting
inch / day
0.50
0.40
0.30
'99‐'13 Avg
0.20
Inside this Issue: Crop Water Use: 1 Soil Degree Data: 2 Insect Trap Report 3 2014
0.10
0.00
5/15
6/15
7/15
8/15
9/15
Potato Crop Water Use
Late Planting
0.50
inch / day
0.40
0.30
'99‐'13 Avg
0.20
Historical P-day Accumulation
June 1 -September 15
2014
0.10
0.00
710
700
690
680
670
660
650
640
630
620
610
600
99
6/5
7/5
8/5
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
9/5
KBREC Actual Water Use: Inches Total P-Day Accumulation
Estimated Emergence - July 24th
450
400
Plan ng Date: Early Late Last 3 days: 0.99 0.99 350
Last 7 days: 2.46 2.40 Last 14 days: 4.80 4.61 Es mated Water Use: Next 7 days 2.45 2.38 p‐days
300
250
May 15
200
June 1
150
June 15
100
50
0
2010
2011
2012
2013
2014
Volume: 6 Issue: 4 Date: July 25, 2014 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 Soil Degree‐Day Accumula on ‐‐ KBREC and IREC 2014 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: 6 Issue: 4 Date: July 25, 2014 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 Insect Trap Report
July 15– July 21
Klamath County
TRAP
1
2
3
4
5
6
7
LOCATION
Malin
Bly Mtn.
Anderson Rd.
Cheyne Rd.
Township Rd.
Keno Hwy.
Klamath Lake
8
9
Running Y
Spring Lake
PTW
0
0
0
0
0
0
0
0
0
BLH
0
0
0
2
0
4
0
1
0
OLH
23
13
32
17
5
41
16
39
38
OP
0
0
1
0
0
13
0
1
0
PP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
0
0
22
6
68
12
7
4
0
6
1
10
12
1
0
0
0
0
0
0
Potato
5
0
35
380
158
561
N/A
22
11
58
13
3
GPA
0
1
4
4
1
5
N/A
2
1
0
1
0
OA
48
20
104
156
50
128
N/A
44
7
25
14
5
OP
0
0
0
0
0
0
N/A
0
0
0
0
0
PP
0
0
0
0
0
0
N/A
0
0
0
0
0
PTW: Potato Tuberworm
BLH: Beet Leafhoppers
OLH: Other Leafhoppers
PSY: Psyllids
PP: Potato Psyllids
Modoc and Siskiyou
10
11
12
13
14
Rd. 102
Copic Bay
Panhandle
Frog Pond
Southwest Sump
15
Wright Rd.
Aphid Traps
1
2
3
4
5
6
7
8
9
10
11
12
Running Y
Keno
Lower Lake
Malin
East Bonanza
North Bonanza
North East Yonna Valley
South East Yonna Valley
North Hildabrand
East Swan Lake
West Swan Lake
Henley
GPA: Green Peach Aphid
OP: Other Psyllids
OA: Other Aphids
PP: Potato Psyllids