Volume: 7 Issue: 5 Date: July 17, 2015 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
'99‐'14 Avg
2015
0.30
0.20
Inside this Issue: Crop Water Use: 1 Soil Degree Data: 2 Insect Trap Report 3 0.10
Historical P‐day Accumulation
June 1 ‐September 15
0.00
5/15
6/15
7/15
8/15
9/15
Potato Crop Water Use
Late Planting
0.35
inch / day
0.3
0.25
2015
0.2
0.15
1999‐2014
Average
0.1
710
700
690
680
670
660
650
640
630
620
610
600
0.05
0
6/5
7/5
8/5
Total P‐Day Accumulation
Estimated Emergence ‐ July 16th
9/5
500
Actual Water Use: Inches 400
Plan ng Date: Early Late Last 3 days: 0.85 0.82 Last 7 days: 1.61 1.54 Last 14 days: 3.34 3.13 Es mated Water Use: Next 7 days 1.96 1.89 p‐days
KBREC 300
May 15
June 1
200
June 15
100
0
2011
2012
2013
2014
2015
Volume: 7 Issue: 5 Date: July 17, 2015 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 2015 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: 7 Issue: 5 Date: July 17, 2015 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 8 – July 14
Klamath County
TRAP
1
2
3
4
5
6
7
8
9
LOCATION
Old Hwy. R. Clark
Micka NW 1/4 Pivot
Sutty S of RxR
Hwy. 39 E of Merrill
Spring Lake S of X-Rd
Homedale S of Diversion
S SideBy-Pass
A-B Line A-11
Hwy. 140
PTW
0
0
0
0
0
0
0
0
0
BLH
0
0
0
0
0
0
0
0
0
OLH
53
8
11
7
21
67
24
12
5
OP
0
2
0
0
4
0
2
1
1
PP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
29
9
6
7
22
5
11
23
0
0
0
3
1
1
0
4
0
0
0
0
0
0
0
0
0
0
PA
3
3
1
2
0
3
0
0
5
1
0
GPA
0
0
0
1
0
0
1
0
3
3
0
OA
3
9
5
15
1
6
3
0
10
2
2
OP
0
0
0
0
0
0
0
0
0
0
0
PP
0
0
0
0
0
0
0
0
0
0
0
Modoc and Siskiyou
1
2
3
4
5
6
7
8
9
Copic Bay
Panhaldle
South West Sump
Frog Pond
Wright Rd.
101 E. of Rd 111
101 W of Rd. 113
Stateline E of Drain 10
Stateline W of Walsh Rd.
Aphid Traps
1
2
3
4
5
6
7
8
9
10
11
Keno/Warden Rd.
Lower Lake
Malin County Rd. 112
North Malin
Harpold Rd.
Schaupp Rd.
Teare
Bly Mountain
Yonna Drive
Mitchell Rd.
North Mitchell Rd.
PTW: Potato Tuberworm
BLH: Beet Leafhoppers
OLH: Other Leafhoppers
OP: Other Psyllids
PP: Potato Psyllids
PA: Potato Aphid
GPA: Green Peach Aphid
OA: Other Aphids
OP: Other Psyllids
PP: Potato Psyllids