Volume:
4
Issue:
3
Date:
July 20, 2012
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
Inside this Issue:
Crop Water Use:
1
Soil Degree Data:
2
Insect Trap Report: 3
Historical P-day Accumulation
June 1 -September 15
710
700
690
680
670
660
650
640
630
620
610
600
99
KBREC
Actual Water Use:
Plan8ng Date:
Last 3 days:
Last 7 days:
Last 14 days:
Es8mated Water Use:
Next 7 days
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
Total P-Day Accumulation
Estimated Emergence - July 19
Inches
500
Early
0.63
1.71
3.61
Late
0.58
1.52
3.05
1.47
1.33
May 15
400
sy 300
a
d
p200
June 1
June 15
100
0
2008
2009
2010
2011
2012
Volume:
4
Issue:
3
Date:
July 20, 2012
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 Accumula8on -- KBREC and IREC 2012
For Root-knot nematode control, Vydate applica8ons should begin at 800 degree-days (DD5C).
To es8mate 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 es8mates the date on which 800 DD5C
will occur in that field. It is recommended that applica8ons con8nue every 14 days un8l harvest.
For Stubby-root nematode control, Vydate applica8ons should begin at 0 degree-days (at plan8ng)
and followed by an applica8on at the first full irriga8on following emergence. An addi8onal
applica8on is recommended at 800 degree-days (DD5C).
Date
4/15/12
4/16/12
4/17/12
4/18/12
4/19/12
4/20/12
4/21/12
4/22/12
4/23/12
4/24/12
4/25/12
4/26/12
4/27/12
4/28/12
4/29/12
4/30/12
5/1/12
5/2/12
5/3/12
5/4/12
5/5/12
5/6/12
5/7/12
KBREC DD5C
Daily
Total
2.2
2.2
3.9
6.1
3.2
9.3
3.2
12.5
4.2
16.7
5.6
22.3
6.9
29.2
7.6
36.8
7.6
44.4
7.7
52.1
6.7
58.8
6.1
64.9
5.2
70.1
5.7
75.9
6.9
82.8
7.3
90.1
6.2
96.3
5.4
101.7
5.5
107.2
5.8
112.9
5.4
118.3
6.4
124.8
7.2
132.0
Daily
2.2
3.4
3.1
3.1
4.3
5.5
6.5
7.3
7.4
7.6
6.8
6.0
5.2
5.6
6.6
7.4
6.6
5.9
6.1
5.9
5.5
6.3
6.9
IREC
Total
2.2
5.6
8.7
11.8
16.1
21.6
28.1
35.4
42.8
50.4
57.2
63.2
68.4
74.0
80.7
88.0
94.7
100.5
106.7
112.6
118.0
124.3
131.2
5/8/12
5/9/12
5/10/12
7.8
8.6
8.0
7.5
8.4
7.8
138.7
147.1
154.9
139.8
148.4
156.4
DD5C
Date
5/11/12
5/12/12
5/13/12
5/14/12
5/15/12
5/16/12
5/17/12
5/18/12
5/19/12
5/20/12
5/21/12
5/22/12
5/23/12
5/24/12
5/25/12
5/26/12
5/27/12
5/28/12
5/29/12
5/30/12
5/31/12
6/1/12
6/2/12
KBREC DD5C
Daily
Total
8.1
164.5
8.6
173.0
9.5
182.5
10.2
192.7
10.8
203.5
10.7
214.2
9.8
224.0
8.2
232.1
8.5
240.7
9.0
249.7
9.5
259.1
8.7
267.8
8.3
276.1
7.9
284.0
6.5
290.5
6.4
296.9
6.7
303.7
7.5
311.2
8.2
319.4
9.1
328.5
10.3
338.8
11.1
349.9
11.5
361.4
6/3/12 10.4
6/4/12 8.9
6/5/12 6.6
371.8
380.7
387.3
IREC DD5C
Daily
Total
8.8
163.7
10.1
173.7
10.4
184.1
10.7
194.9
11.3
206.2
11.1
217.3
10.3
227.6
9.5
237.1
10.1
247.2
11.0
258.2
11.5
269.7
10.8
280.5
10.3
290.8
9.4
300.2
8.4
308.6
8.2
316.8
8.7
325.5
10.5
336.1
11.7
347.7
12.1
359.9
12.9
372.8
13.5
386.3
13.4
399.7
12.7
11.5
10.2
Date
6/6/12
6/7/12
6/8/12
6/9/12
6/10/12
6/11/12
6/12/12
6/13/12
6/14/12
6/15/12
6/16/12
6/17/12
6/18/12
6/19/12
6/20/12
6/21/12
6/22/12
6/23/12
6/24/12
6/25/12
6/26/12
6/27/12
6/28/12
412.4 6/29/12
423.9 6/30/12
434.1 7/1/12
KBREC DD5C
Daily
Total
6.9
394.2
7.4
401.6
7.3
408.9
7.7
416.6
8.3
424.8
9.6
434.5
10.6
445.0
10.6
455.7
11.1
466.8
11.5
478.2
12.0
490.3
12.6
502.9
12.3
515.1
11.2
526.3
11.3
537.6
11.7
549.3
10.8
560.1
9.3
569.3
8.9
578.2
9.1
587.3
8.8
596.1
9.8
605.9
10.5
616.3
11.3
11.4
11.9
IREC DD5C
Daily
Total
10.5
444.6
10.9
455.5
10.7
466.2
10.4
476.6
10.6
487.2
12.2
499.5
13.4
512.9
13.3
526.2
13.4
539.6
13.5
553.0
13.5
566.5
13.7
580.2
13.0
593.3
12.5
605.8
13.1
618.9
13.9
632.9
13.2
646.1
12.0
658.1
11.9
670.0
12.1
682.1
12.4
694.5
13.0
707.5
13.8
721.3
627.6 14.5
639.1 14.8
651.0 15.2
735.8
750.6
765.9
Date
7/2/12
7/3/12
7/4/12
7/5/12
7/6/12
7/7/12
7/8/12
7/9/12
7/10/12
7/11/12
7/12/12
7/13/12
7/14/12
7/15/12
7/16/12
7/17/12
7/18/12
7/19/12
7/20/12
7/21/12
7/22/12
7/23/12
7/24/12
7/25/12
7/26/12
7/27/12
KBREC DD5C
Daily
Total
12.2
663.1
12.4
675.6
12.1
687.6
12.4
700.0
12.7
712.7
13.1
725.9
13.8
739.7
14.4
754.1
14.5
768.6
14.8
783.3
15.0
798.3
14.6
812.9
14.4
827.3
14.1
841.3
13.3
854.6
12.4
867.0
12.1
879.1
12.1
891.2
IREC DD5C
Daily
Total
16.2
782.0
16.6
798.6
16.1
814.6
16.6
831.3.
17.0
848.2
16.8
865.0
17.3
882.3
18.3
900.6
18.9
919.4
18.9
938.3
19.9
958.2
18.4
976.6
17.5
994.1
16.8
1010.9
16.0
1026.9
14.3
1041.2
14.6
1055.8
14.8
1070.6
Volume:
4
Issue:
3
Date:
July 20, 2012
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 11 - July 16
Klamath County
TRAP
1
2
3
4
5
6
7
LOCATION
Anderson Rd., Merrill
Old Malin Hwy.
Pickett & Drazil, Malin
Lower Lake
Running Y
Caledonia
Tingley Lane
PTW
0
0
0
0
0
0
0
BLH
0
0
0
0
0
0
0
OLH
10
10
11
13
7
6
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
6
3
2
19
4
33
2
Potato
1
7
0
27
10
0
0
6
7
0
GPA
0
0
0
0
0
0
0
0
0
0
Other
52
8
3
74
50
15
3
21
4
4
PSY
0 PTW: Potato Tuberworm
0 BLH: Beet Leafhoppers
0 OLH: Other Leafhoppers
0 PSY: Psyllid
0
0
0
Modoc and Siskiyou
8
9
10
11
12
13
14
15
Perez Overhead
Road 101 Tulelake
Frog Pond 361
Southwest Sump
Frog Pond 345
Stateline and Akins
Ganger Road
Copic Bay
Aphid Traps
1
2
3
4
5
6
7
8
9
10
Keno
Township South
Township North
East Malin
South Poe Valley
Bonanza
Yonna Valley
Dairy
Swan Lake East
Swan Lake West
0
0
0
0
0
0
0
0
GPA: Green Peach Aphid