Volume:
Issue:
Date:
1
9
September 3, 2009
Potato Bytes
Klamath Basin Research and Extension Center
6941 Washburn Way
Klamath Falls, Oregon 97603
(tel) 541-883-4590 (fax) 541-883-4596
http://oregonstate.edu/dept/kbrec
Brian A. Charlton, Research and Extension Agent –541-591-1255
Inside this issue:
Crop Water Use
Insect Trap Report
Soil Degree Data
Soil Degree Data
Inside Story
Water Use in/day
Potato Crop Water Use 2009
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
Early
Late
5/20
6/20
7/20
8/20
Time
KBREC
Actual Water Use:
Planting Date:
Last 3 days:
Last 7 days:
Last 14 days:
Estimated Water Use:
Next 7 days:
Inches
Early
0.55
1.28
2.77
Late
0.58
1.35
2.92
1.26
1.33
1
2
3
4
5
Volume:
Issue:
Date:
1
9
September 3, 2009
Potato Bytes
Klamath Basin Research and Extension Center
6941 Washburn Way
Klamath Falls, Oregon 97603
(tel) 541-883-4590 (fax) 541-883-4596
http://oregonstate.edu/dept/kbrec
Brian A. Charlton, Research and Extension Agent –541-591-1255
Insect Trap Report
August 26 - September 2
Klamath County
TRAP
1
2
3
4
5
6
7
8
9
10
LOCATION
Bergdorf Rd
Hwy 39
Tingley Lane
Township Rd
Malin Rd
Suty Rd
Harpold Rd
Anderson Rd
L. Klamath Lake
Near Dairy
PTW
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BLH
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
OLH
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
PSY
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Potato
2
0
0
0
12
6
NA
GPA
0
0
0
27
1
8
NA
PTW: Potato Tuberworm
BLH: Beet Leafhoppers
OLH: Other Leafhoppers
PSY: Psyllid
Modoc and Siskiyou
1
2
3
4
5
6
7
8
9
10
TID# 5038
IREC
TID# 4445/4533
TID# 4438
TID#4332
TID# 4421
TID# 362-36
TID# 4358
TID# 4125
TID# 4138
Aphid Traps
1
2
3
4
5
6
7
Running Y
Bedfield Road
West Malin
East Malin
Lower Lake
Buesing Road
Yonna Valley
Other
1
GPA: Green Peach Aphid
0
0
10
8
11
NA
Volume:
Issue:
Date:
1
9
September 3, 2009
Potato Bytes
Klamath Basin Research and Extension Center
6941 Washburn Way
Klamath Falls, Oregon 97603
(tel) 541-883-4590 (fax) 541-883-4596
http://oregonstate.edu/dept/kbrec
Brian A. Charlton, Research and Extension Agent –541-591-1255
Soil Degree-Day Accumulation -- KBREC and IREC 2009
For Root-knot nematode control, Vydate applications should begin at 800 degree-days (DD5C).
To estimate 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 estimates the date on which 800 DD5C
will occur in that field. It is recommended that applications continue every 14 days until harvest.
For Stubby-root nematode control, Vydate applications should begin at 0 degree-days (at planting)
and followed by an application at the first full irrigation following emergence. An additional
application is recommended at 800 degree-days (DD5C).
Date
4/15/09
4/16/09
4/17/09
4/18/09
4/19/09
4/20/09
4/21/09
4/22/09
4/23/09
4/24/09
4/25/09
4/26/09
4/27/09
4/28/09
4/29/09
4/30/09
5/1/09
5/2/09
5/3/09
5/4/09
5/5/09
5/6/09
5/7/09
5/8/09
5/9/09
5/10/09
KBREC DD5C
Daily Total
0.5 0.5
0.9 1.4
1.7 3.1
2.7 5.8
4.1 10.0
5.3 15.3
6.2 21.5
6.6 28.1
6.3 34.4
5.4 39.8
4.9 44.7
4.7 49.4
4.8 54.1
4.5 58.6
4.4 63.0
4.7 67.8
5.0 72.8
4.1 76.9
4.2 81.1
3.6 84.7
3.9 88.6
4.9 93.5
5.5 99.0
5.8 104.8
6.5 111.3
7.0 118.3
IREC DD5C
Daily Total Date
0.0 0.0
5/11/09
0.0 0.0
5/12/09
0.4 0.4
5/13/09
1.3 1.8
5/14/09
2.2 4.0
5/15/09
3.2 7.2
5/16/09
4.1 11.3 5/17/09
4.7 16.0 5/18/09
4.6 20.7 5/19/09
3.9 24.6 5/20/09
3.2 27.7 5/21/09
3.1 30.8 5/22/09
2.8 33.6 5/23/09
2.5 36.1 5/24/09
2.6 38.7 5/25/09
3.2 41.9 5/26/09
3.9 45.8 5/27/09
3.7 49.5 5/28/09
3.8 53.3 5/29/09
3.8 57.1 5/30/09
4.1 61.2 5/31/09
5.0 66.2 6/1/09
5.1 71.3 6/2/09
5.0 76.3 6/3/09
5.4 81.7 6/4/09
6.0 87.6 6/5/09
KBREC DD5C
Daily Total
7.5
125.8
7.4
133.2
6.5
139.7
6.6
146.4
7.0
153.4
8.5
161.9
9.7
171.6
10.6 182.3
10.7 193.0
10.0 202.9
9.8
212.7
10.5 223.2
11.3 234.5
11.6 246.1
11.5 257.7
11.7 269.4
12.0 281.4
12.6 294.0
12.7 306.8
12.8 319.5
12.5 332.0
12.1 344.1
11.9 356.0
10.8 366.8
10.5 377.3
9.5
386.9
IREC DD5C
Daily Total
6.5 94.2
6.3 100.4
6.0 106.4
6.6 113.0
6.9 119.9
7.9 127.8
8.9 136.7
10.5 147.2
11.0 158.2
10.0 168.2
10.0 178.1
10.4 188.5
10.9 199.4
11.2 210.7
11.6 222.3
12.0 234.3
12.2 246.5
13.0 259.5
13.6 273.1
14.1 287.2
13.8 301.0
13.3 314.3
13.9 328.2
13.4 341.6
13.1 354.8
11.8 366.6
Date
6/6/09
6/7/09
6/8/09
6/9/09
6/10/09
6/11/09
6/12/09
6/13/09
6/14/09
6/15/09
6/16/09
6/17/09
6/18/09
6/19/09
6/20/09
6/21/09
6/22/09
6/23/09
6/24/09
6/25/09
6/26/09
6/27/09
6/28/09
6/29/09
6/30/09
7/1/09
KBREC DD5C
Daily Total
9.6 396.5
10.5 407.0
10.8 417.8
10.5 428.3
10.1 438.4
9.9 448.3
9.8 458.1
10.3 468.4
10.6 479.0
11.0 490.0
11.0 501.0
11.9 512.9
11.7 524.6
12.0 536.6
11.6 548.1
10.9 559.1
10.7 569.7
11.7 581.4
12.5 593.9
13.0 606.9
13.2 620.1
13.5 633.6
14.0 647.6
14.2 661.8
14.2 676.1
14.4 690.4
IREC DD5C
Daily Total
11.7 378.3
12.7 391.0
12.7 403.7
12.5 416.2
12.2 428.4
12.0 440.4
12.0 452.4
12.1 464.5
12.8 477.4
13.5 490.8
13.5 504.3
15.0 519.4
15.3 534.6
14.9 549.6
14.3 563.9
13.7 577.6
13.1 590.7
14.0 604.7
15.2 619.9
15.7 635.5
15.7 651.3
15.3 666.5
15.7 682.3
16.5 698.8
17.0 715.7
17.1 732.8
Volume:
Issue:
Date:
1
9
September 3, 2009
Potato Bytes
Klamath Basin Research and Extension Center
6941 Washburn Way
Klamath Falls, Oregon 97603
(tel) 541-883-4590 (fax) 541-883-4596
http://oregonstate.edu/dept/kbrec
Brian A. Charlton, Research and Extension Agent –541-591-1255
Soil Degree-Day Accumulation -- KBREC and IREC 2009
(Con’t)
Date
KBREC DD5C IREC DD5C
KBREC DD5C
IREC DD5C
Daily Total Daily Total Date Daily Total Daily Total
7/2/09
14.0
704.4
17.2
7/3/09
14.3
718.7
17.3
7/4/09
14.7
733.4
17.7
7/5/09
14.7
748.1
17.0
7/6/09
14.2
762.3
16.2
7/7/09
13.8
776.1
15.5
7/8/09
13.5
789.6
15.0
7/9/09
13.7
803.3
15.1
7/10/09
14.0
817.2
15.4
7/11/09
14.1
831.3
15.0
7/12/09
14.2
845.5
14.5
7/13/09
14.0
859.5
14.8
7/14/09
14.0
873.5
15.8
7/15/09
14.9
888.3
16.4
7/16/09
17.2
905.6
17.3
7/17/09
17.5
923.0
17.6
7/18/09
18.2
941.2
17.8
7/19/09
18.0
959.2
17.7
7/20/09
18.1
977.3
18.0
7/21/09
18.4
995.7
18.5
7/22/09
18.8
1014.5
18.9
7/23/09
18.9
1033.4
19.0
7/24/09
19.0
1052.4
18.8
7/25/09
19.2
1071.6
18.1
7/26/09
19.3
1091.0
18.7
7/27/09
19.5
1110.5
19.0
7/28/09
19.8
1130.3
20.4
7/29/09
20.0
1150.3
21.1
7/30/09
19.9
1170.2
20.8
7/31/09
19.8
1190.0
20.5
Date
KBREC DD5C IREC DD5C
Daily Total Daily Total
750.0 8/1/09
767.4 8/2/09
19.5 1209.5
785.0 8/3/09
802.0 8/4/09
18.0 1246.2
18.1 1264.4
20.1 1278.2 8/31/09 15.8
19.8 1297.9 9/1/09 15.8
19.2 1317.2 9/2/09 15.7
19.0 1336.2
818.2 8/5/09
833.7 8/6/09
17.3 1281.7
17.8 1353.9
16.3 1297.9
16.3 1370.2
848.7 8/7/09
863.8 8/8/09
14.0 1311.9
14.8 1385.0
13.6 1325.6
14.5 1399.5
879.2 8/9/09 15.0 1340.5
894.2 8/10/09 15.7 1356.2
15.3 1414.8
908.7 8/11/09 16.3 1372.5
923.5 8/12/09 16.7 1389.2
16.7 1447.4
939.4 8/13/09 16.8 1406.0
955.8 8/14/09 15.8 1421.7
16.4 1480.5
973.1 8/15/09 15.4 1437.1
990.7 8/16/09 15.6 1452.7
14.9 1510.9
18.8 1228.3
15.9 1430.7
16.7 1464.2
15.4 1495.9
14.9 1525.8
1008.5 8/17/09 16.3 1469.0 15.4 1541.2
1026.3 8/18/09 16.7 1485.7 16.1 1557.4
1044.2 8/19/09 17.3 1502.9 16.4 1573.8
1062.7 8/20/09 18.1 1521.0 17.0 1590.8
1081.6 8/21/09 17.9 1538.9 17.0 1607.8
1100.6 8/22/09 17.7 1556.6 16.5 1624.3
1119.4 8/23/09 17.4 1574.0 16.2 1640.5
1137.5 8/24/09 16.9 1590.9 15.5 1656.0
1156.3 8/25/09 16.7 1607.6 15.3 1671.3
1175.3 8/26/09 16.5 1624.1 14.9 1686.2
1195.6 8/27/09 16.2 1640.3 14.7 1701.0
1216.7 8/28/09 15.5 1655.8 14.3 1715.3
1237.5 8/29/09 15.1 1670.9 14.3 1729.5
1258.4 8/30/09 15.7 1686.6 14.2 1743.7
1702.4
14.2 1757.8
1718.2
1733.9
13.9 1771.8
13.5 1785.3
Volume:
Issue:
Date:
1
9
September 3, 2009
Potato Bytes
Klamath Basin Research and Extension Center
6941 Washburn Way
Klamath Falls, Oregon 97603
(tel) 541-883-4590 (fax) 541-883-4596
http://oregonstate.edu/dept/kbrec
Brian A. Charlton, Research and Extension Agent –541-591-1255
p-days
Total P-Day Accumulation
Estimated Emergence - September 2
800.0
700.0
600.0
500.0
400.0
300.0
200.0
100.0
0.0
'May 15
'June 1
'June 15
2004 2005 2006 2007 2008 2009
Klamath Falls Historical P-day Accumulation
(May 1 - September 15)
840
820
800
s780
y
a
d
P
760
P-days
740
720
700
Year
Potato Bytes published by: Brian A. Charlton, Research and Extension Agent 541-591-1255
Darrin Culp, Fac. Res. Asst 541-891-0784