Cotton Diseases in 2019 - plantmanagementnetwork.org · Cotton Diseases in 2019 Terry Wheeler Texas...
Transcript of Cotton Diseases in 2019 - plantmanagementnetwork.org · Cotton Diseases in 2019 Terry Wheeler Texas...
Cotton Diseases in 2019
Terry Wheeler
Texas A&M AgriLife Research
Lubbock
• Seedling Diseases: Poor root growth and emergence north and east of Lubbock. Probably due to cool and wet conditions. Not necessarily seedling disease but contributed.
• Fusarium Wilt: To be covered by Cecilia Monclova-Santana
• Nematodes: Significant problem in 2019
• Bacterial blight: No problems in 2019
• Verticillium wilt: Probably none to minimal losses in 2019
Lamesa: Root-knot Nematode Reproduction
0
5000
10000
15000
20000
25000
30000
35000
40000
PX
5C
05
W3
FE
PX
5C
45
W3
FE
PX
5E3
4W
3FE
PX
3D
43W
3FE
PH
Y3
20W
3FE
PX
2B
14W
3FE
PX
5D
28W
3FE
PX
5E2
8W
3FE
PH
Y4
80
W3
FE
PH
Y5
80
W3
FE
DP
17
47N
RB
2X
F
DP
18
23N
RB
2X
F
FM1
911
GLT
ST4
94
6GLB
2
NG
395
6B3
XF
CG
917
8B3
XF
NG
399
4B3
XF
PH
Y4
90
W3
FE
DP
18
51
B3
XF
ST5
70
7B2
XF
DP
15
22
B2
XF
CG
960
8B3
XF
DP
16
46
B2
XF
NG
493
6B3
XF
NG
468
9B2
XF
DP
18
20
B3
XF
FM2
398
GLT
P
FM2
574
GLT
DP
19
09X
F
NG
364
0XF
NG
477
7B2
XF
Ro
ot-
kno
t n
em
ato
de
/5
00
cc
soil
Phytogen (PHY, PX)Deltapine (DP)Fibermax (FM), Stoneville (ST)NexGen (NG)Croplan Genetics (CG)
Nocontrol
Vydate
PropulseAt-Plant in the furrow
AgLogic 15G
Chemical Control in a Reniform Fields
0
200
400
600
800
1000
1200
1400
1600
1800
2000
PX
5E2
8W
3FE
DP
184
0B
3X
F
PX
5E3
4W
3FE
PX
3D
43
W3
FE
PX
3D
32
W3
FE
DP
17
47
NR
B2X
F
PX
3B
07
W3
FE
NG
35
00
XF
NG
39
56
B3
XF
PH
Y49
0W
3FE
DP
161
2B
2X
F
NG
37
80
B2
XF
NG
45
45
B2
XF
DP
18
22
XF
NG
49
36
B3
XF
DP
184
5B
3X
F
NG
39
30
B3
XF
ST5
60
0B
2X
F
FM2
49
8G
LT
NG
46
89
B2
XF
DP
191
6B
3X
F
PH
Y32
0W
3FE
DP
18
23
NR
B2X
F
DP
152
2B
2X
F
DP
182
0B
3X
F
FM1
91
1G
LT
ST4
94
6G
LB2
NG
47
77
B2
XF
FM1
83
0G
LT
DP
164
6B
2X
F
PH
Y48
0W
3FE
ST5
70
7B
2X
F
Re
nif
orm
ne
mat
od
es/
10
0 c
m3
soil
Lubbock: Reniform Nematode Reproduction in Varieties
Phytogen (PHY, PX)Deltapine (DP)Fibermax (FM), Stoneville (ST)NexGen (NG)
* * * *
Reniformresistant
varieties
PX3D32W3FE NG 3930B3XFFM 1911GLT
PX5E34W3FENG 3930B3XF DP 1612B2XF
PX3D43W3FEFM 1830GLT Different test
PX5E28W3FEDP 1845B3XF DP 1522B2XF
PHY 480W3FEST 5707B2XF DP 1820B3XF
ST 4946GLB2NG 4545B2XFDP 1522B2XF
A comparison of three reniform susceptible varieties (the camera angle is not causing the middle variety to look better than the flanking varieties).
Varieties with Reniform nematode resistance are very close to being available
Chemical control does not appear to be as effective as the new resistant varieties.
Verticillium Wilt
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
FM2
57
4G
LT
FM2
33
4G
LT
FM1
91
1G
LT
NG
47
77
B2
XF
ST5
60
0B
2X
F
NG
46
89
B2
XF
NG
36
40
XF
NG
47
92
XF
NG
39
30
B3
XF
NG
49
36
B3
XF
FM2
39
8G
LTP
CG
95
98
B3
XF
DP
18
40
B3
XF
ST5
70
7B
2X
F
FM2
49
8G
LT
FM1
83
0G
LT
DP
16
12
B2
XF
NG
29
82
B3
XF
ST4
55
0G
LTP
DP
18
51
B3
XF
DP
18
45
B3
XF
DP
19
48
B3
XF
NG
39
94
B3
XF
DP
19
16
B3
XF
CG
96
08
B3
XF
DP
19
09
XF
DP
18
35
B3
XF
Wilt
inci
de
nce
(%
) Deltapine (DP)Fibermax (FM), Stoneville (ST)NexGen (NG)Croplan Genetics (CG)
Incidence of Verticillium wilt in Hockley co.
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
FM2
57
4G
LT
NG
39
30
B3
XF
NG
39
56
B3
XF
FM2
33
4G
LT
FM2
39
8G
LTP
FM1
91
1G
LT
PH
Y2
10
W3
FE
FM1
62
1G
L
FM1
32
0G
L
FM2
32
2G
L
DP
18
22
XF
NG
36
40
XF
PH
Y2
50
W3
FE
NG
35
00
XF
ST5
60
0B
2X
F
DP
16
12
B2
XF
NG
37
80
B2
XF
CG
95
98
B3
XF
CG
91
78
B3
XF
DP
18
20
B3
XF
NG
29
82
B3
XF
CG
96
08
B3
XF
DP
19
09
XF
DP
19
08
B3
XF
Ve
rtic
illiu
m w
ilt in
cid
en
ce
Phytogen (PHY, PX)Deltapine (DP)Fibermax (FM), Stoneville (ST)NexGen (NG)Croplan Genetics (CG)
Wilt incidence at a test near Plainview
0
10
20
30
40
50
60
70
80
90
100
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
%
Cotton Varieties (%) planted that are susceptible to Bacterial Blight.
GA MS TX
0
10
20
30
40
50
60
70
80
90
100
Bac
teri
al b
ligh
t in
cid
en
ce (
%)
Performance of some new varieties when inoculated withXanthomonas citri pv. malvacearum
Resistant
Partiallyresistant
Partiallysusceptible
Moderatelysusceptible
Susceptible
I appreciate the funding sources for these projects including:
Texas Cotton State SupportPlains Cotton Improvement Program
USDA-NIFA #TEX09672
Producers who donated their land area for these research projects are: Ron Graves, Glenn Schur and Larry Smith