PEANUT Assess Disease Risk in Your Field and Develop a Peanut …blog.extension.uga.edu ›...
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PEANUT Assess Disease Risk in Your Field and Develop a Peanut Rx
This worksheet will lead you through the four-step process of determining your disease risk level in order to customize a Peanut Rx™ for your individual field. Use the reverse side of this worksheet with the assistance of your Bayer representative to develop a program specifically for your field.
For each of the risk index factors, identify which option best describes the situation in your field and add the index value associated with each choice to obtain your overall disease risk value. This worksheet does not contain all of the notes that accompany each factor included in the 2017 Peanut Rx. To view the complete 2017 Peanut Rx, visit the University of Georgia peanut web site at www.ugapeanuts.com.
Step 1: Assess Your Disease Risk
' . . .
" .JI- ~ Bailey' 10 15
Flortda-07"2 10 20
Flortda Fancy' 25 20
FloRun™ "107'2 20 25
FloRun™ '157"U 25 25
Georgia--OGG I 10 20
Georgia-07W 10 20
Georgia-09B2 I 20 25
Georgia-12v• 5 15
Georgia-13M'~ 10 30
Georgia-14N'2.' 10 15
Georgia Green 30 20
Sullivan'~ 10 20
Tiftguard" 10 15
TUFRunner™ ·295·u 10 25
TUFRunner™ '511"' 20 30 ..... t • l l"! • :.
8r li71l" ''l'll . ~ ~.' . Pnorto May 1 I 30 o May 1-May 10 15 5
May 11-May 31 5 10
June 1-June 10 I 10 15
After June 10 I 15 15
- ... . . ... "'°l!I• '.': :;J -,~
~ lti
Less lhan 3 plan ls per foot 25 NA
3 to4 plants per foot (tor•onetm- spotted will 15 NA oamls greater than 25}
3 to 4 plants per foot (for 11arieties with spotted wit I 10 NA nnUJts less than 25)
More lhan 4 plants per foot ' 5 I NA
At-Plant Insecticide
(fu" 10
I 15
20
20
20
20
15
25
10
25
15
25
15
15
20
15
~
""'" 10
5
o o o
~-'W
o
I o
o
I 5
Step 2: Calculate Your Severity Points Fill in following table to calculate your seventy points for eaCh of the four major peanut diseases given the 10 determining factors . Total each colul1Yl to establish your disease index vatues.
. ll .. H f:. • . -~~ ' ' rl!'.L;;:1;;.~.A1;:~ 1';];,r.lf. ~~I . ~~':lll'r.'l
Peanut Vartety
Planting Date
Plant PODulation -At-Plant Insecticide - -Row Pattern
T illage
aassic Herbicide - -Crop Rotation -Field History -Irrigation I -- I I
Your Total Index Value I i Step 3: Interpret Your Index Values Once you've calculaled your index values. utilize lhe table below to interpret your rtsk level.
~· . ' High Risk
Moderate Risk
Low Risk
In a year when tomato spotted wilt virus incidence is high statewide or in your region, even fields with a low rtsk level may experience significant losses. Consider the foll<ming reconvnendations to reduce your spotted wilt rtsk level: 1 - Use less susceptible varieties. 2 - Adjust your planting date. 3 - Consult lhe complete Peanut Rx for additional options lhat may provide limited benefit
Step 4: Develop your Peanut Rx Once you have calculated your tolaf risk for each peanut disease, umize the most conservative fungicide program as your guide for customizing a per field prescription spray program wilh lhe assistance of your Bayer CropScience representative. Bayer CropScience reconmended disease rtsk spray sChedules for eaCh risk level are induded on the reverse side of this worl<sheel 1 Adequate ~arch dat31s not av3bbJe for al vaneties wdh repards to d diseases. Additional varietie.s \WlJ be inchJded as data to suppotf the assignm911t of an indox valJe are avalfablo. 2High ole1e variety. lVa<Jebes Bailey have inaeased resistM>Ce to C)'fftdrocladium black IOl (CSR) Chan do olherv.n.ms commonlyplanlr:d ~ Gecvp 'rt1gu1rd and Georgia 1LN l'lawr excellent resistance to the peanut root·knot nematode 5Georgia-12Y appears to have increased risk to Rhizoctoma l1tnb rot and prtteaullOl'l.S should be taken to ptOted against this ct:.sease
(a:!_,~:RJ Science For A Better Life -x_,!./
Field Name: -------------~~~-~--~
Planting Date: _______ _
Plant 15 30 46 60 75 90 105 120
•
0 esOLUTE' ~ ... ~ ... 3.5oz PROVOST" PROVOST' Chlorothalonil -OR- ;;:n Da:,"':1 OPTI OPTI
'\r """"~ -- 1.5 pt Chlorothalonil 10.7 oz .?:; n~yr. 10.7 oz
1.5pt
l~owRV ~BSOLUTE' ~- ~- Chlorothalonll 3.5 oz PROVOST" Non Group 3 PROVOST"
- OR ,.. 2:1 u .. _y'":r OPTI ?'. D;-1,n White Mold ;1 J" OPT I 1.5 pt Chlorothatonll 10-10.7 oz Fungicide'' 10-10.7 oz
1.5 pt
r:
0 esOLUTE' ~ ... ~- Chlorothalonil 3.5 oz Chlorothalonll ,
PROVOST" Non Group 3 PROVOST" Non Group 3 1.5 pt -OR·· 1.Spt OPTI \; White Mold OPTI White Mold
Chtorothalonil 10-10.7 oz Fungicide"' 10-10.7 oz Fungicide" 1.5 pt
Chlorothalonll ~BSOLUTE ~- ~ ... Chlorothalonil 1.5pt 3.5 oz PROVOST" Non Group 3 PROVOST" Non Group 3 1.5 pt ljQ; ... '1 ·-..(>R- -OR-- OPTI White Mold OPTI White Mold ~ De
Chlorothalonil 10.7 oz Fungicide"' 10.7 oz Fungicide" 5.7 oz Banded 1.5pt
~· .._ 5.7 oz In-Furrow
PROPULSE PRoVQSt· -· Chlorothalonil Non Group 3 PROVOST" Non Group 3 -tti C~:~1~• OPTI White Mold OPTI White Mold 1.5 pt
13.6 oz Fungicide" - '~-: 10.7 oz ~ 1;- .
Fungicide" 10.7 oz
-•, m>''ELUM" cl> TOTAL
18 oz In-Furrow
I ··-- --- - I Your
Program
See reverse side to assess your Peanut Disease Risk Index
Programs developed with the cooperation of:
UF FwitIB.A •!FAS " • UGA
extension ~x.t~n.~.i.9.o U N I V f Ill l IT Y0
MISSISSIPPI STATE
l-m/c/s 1v1//1 a /Jmtorv of 01 tlumt frnrn r:vtmclroclad11111113/ar.A l~ol ICRR! s/Jo11/cl use I/Jr> naver CRR 1!1sm.o.0 ma11Mm111e11t pro9rn111 couplull w11/1 a CBR resistant pen11ut vanety • Fo1 r{'s1s/,111ce man."lgeme11/. •:JtOl\'C'IS s/1011/d 1otalt" 11't/1111011-0MI (f-11n91c1de C:~ro11p j) rung1c1cfes Do not usr. other DMI f1111g1c1des sucll ns tclwconazole Iii these trmings If a grower cllooses to use a strobilunn pinclucts suc/1 1s /Jyr,1, :/os/rot•m 01 111n.v 1';:;/ro/l:n m f11t''.'e tm1111i1~ /Ill'. 11·11'1 othe1 11011-r>MI f1111g1ocles sue/I as chlorotlmlolllf due to cl1seasn ros1stn11ce. Cootact your local Bayer rep for more mformal1011
U111!1•1 P1•,11111t R1t B.1yN hr:iurl h1111u• "'"'H•tf' lh•" only fum11c-ir1•··; lh."'I m1v h• l1'lNt 111,1 fllO":•'' Pl~'flr.m1 tu qu;ihly lnr O:wf'1 ·;111ulmt l'rn1J11r111rrliirm:'lncrpwh•c:t•"'\
•n1; P:tyf'I C11111';nl'ltfl' LP. T 11.J Al•·" 1111,.•1 (ltll'P P•· u. h lo.u•ril" P.tt1 rlC 2;; n•1 Al •V' 101d mcl lnll "1l.1h•·l 111•J1t1•\tr•o· 0;\~'N' lh•• B11-v•·1 C1f'I""' J'1.,!111.- Ptnv~l • Ah·.1 .. uh • Vt 111111 Tol~l ~n·l•I P11 ... ~1I·.•~ •.lfr•11>1'11':ll'fl'rl
fl,1,J .. 111.11 .. <, of B·lVl'I Tiu• p .. ,UUll f.;)C ltM)'I .nul 111 .. 1JGf\ 1:x11·11· 1011 l11rw. o\11' .1 11;1<1. ·11111 .. (tf Th Ihm•• ..-.• 1.,nf 11;p111fll1i Tiii' Unt\•u-:.11., 111 Flmtd:i IF/\~ h>(lflr . • 11n1l1·lll:'!lkOf ll11• UnrJ(! I •ly ,,1 rl<iwl:l Tiu~ Al.ilMnn f::flCIP10tl ln•111 i; :1 tr:idf'tn:'Hk
nl ,,uh11111 Ut11VPl<11V llll' t.11·~·.1· ipp! S t.ll•· ll!llV•·t ···•vlno,, ,, .1 t1.1d1·m,l/~ ,,, r 11· " 1 l•1p~)· ~t . 11t• l IH1 1:1 rr.-fy Nol .itl 1•1odttr t•. ;Ill' f'. ll! lf"ll!IV l•'!W'·h'll'll lnr <::iii• nl 11'°"1' Ill .111 ~lnlr~.
Fm add1ll{lll>1I ~,10!1111I1111rnm.1111M1 1 .1tl tnU lt1•1• I t.l'.i'l 9<'J nAt'FP 1 I F'f~ 1102 70"':71•>l1·1·11f1>UI W1•hq" ,1t \·,••.w fl1yt··11.,.1op~r 11•11f"1•, 11n1
4 Science For A Better Life
Disease Risk Spray Schedules - 2017 ~
Field Name ________ _
--..
PEANUT~ " rp .__ ,
Planting Date ______ _
1. ·~,r LEAF SPOT LEAF SPOT I WHITE MOLD I LIMB ROT LEAF SPOT
~ 30 45 60 75 90 105 120
~ Chlorothalonil Chlorothalonil CONVOY 21 fl oz+ Chlorothalonil CONVOY 21 fl oz+ Chlorothalonil Chlorothalonil
r:mm 1.5 pts 1.5 pts Chlorothalonil 1.5 pts 1.5 pts Chlorothalonil 1.5 pts 1.5 pts 1.5 pts
Chlorothalonil Chlorothalonil CONVOY 13-16 fl oz +
CONVOY 13-16 fl oz+ CONVOY 13-16 fl oz +
CONVOY 13-16 fl oz+ Chlorothalonil ~ ~ 1.5 pts 1.5 pts
Chlorothalonil 1 pt + Chlorothalonil 1.5 pts
Chlorothalonil 1 pt + Chlorothalonil 1.5 pts 1.5 pts
Topsin 5-10 fl oz Topsin 5-10 fl oz
Chlorothalonil Chlorothalonil CONVOY 26-32 fl oz + Tebuconazole 7.2 fl oz+ CONVOY 26-32 fl oz + Tebuconazole 7.2 fl oz +
Ch lorothalonil ~ ~ 1.5 pts 1.5 pts
Chlorothalonil 1 pt + Chlorothalonil 1 pt Chlorothalonil 1 pt + Chlorothalonil 1 pt 1.5 pts
Topsin 5-10 fl oz OR Topsin 5-10 fl oz OR
Priaxor 6-8 f l oz Priaxor 6-8 fl oz
'Days After Planting.
Notes: Use higher rate of CONVOY if white mold risk increases to High Risk category. CONVOY only controls soilborne diseases (Sclerotium ro/fsii-white mold; Rhizoctonia solani-limb rot). A foliar disease spray program must be added for management of leaf spot.
See reverse side to assess the Peanut Disease Risk Index developed by:
UNIVERSITY OF GEORGIA
NICHINO AM ERIC/\
UNIVERSITY OF FLORIDA
AUBURN UNIVERSITY
MISSISSIPPI STATE UNIVERSITY
Peanut Rx™ is a trademark of University of Georgia.
CLEMSON UNIVERSITY K;BNVQY.
©2017 Nichino America, Inc. All rlghls reserved. Convoy and Nichino America logo are registered lrademarks of Nichlno America, Inc. Priaxor Is a regislered lrademark of BASF. Thimel is a reglslered 1rademark of Amvac Chemical Co<poration. Topsin is o registered lrademark of Nippon Soda Company Lid. Classic Is a reglslered lrademark of E.I. du Pon1 da Nemours and Company. Always read and follow label direclions. f 888·740·7700 I www.nlchino.ne1
Develop a PEANUT Rx For each of the following factors that can influence the incidence of tomato spotted wilt virus (TSWV) or fungal diseases, the grower or consultant should identify which option best describes the situation for an individual peanut field. An option must be selected for each risk factor unless the information is "unknown". A score of "O" for any variable does not imply "no risk", but that this practice does not increase the risk of disease as compared to the alternative. Add the index numbers associated with each choice to obtain an overall risk index value. Compare that number to the risk scale provided and identify the projected level of risk.
PEANUT~ -......,, r;z .._
~~ co i
PEANUT VARIETY
Georgia Green 30 20 FloRun 157 25 25 Florida Fancy 25 20 TUFRunner 511 20 30 Georgia-098 20 25 FloRun 107 20 25 Georgia-13M 10 30 TUFRunner 297 10 25 Georgia-OGG 10 20 Florida-07 10 20 Georgia-07W 10 20 Sullivan 10 20 Tifguard 10 15 Georgia-14N 10 15 Bailey 10 15 Georgia-12Y 5 15
PLANTING DATE
Priorto May 1 30 0 May 1 to May 10 15 5 May 11 to May 25 5 10 May 26 to June 10 10 15 After June 10 15 15
PLANT POPULATION (final stand, not seeding rate)
Less than 3 plants per foot 3 to 4 plants per foot' 3 to 4 plants per foot' More than 4 plants per foot
25 15 10 5
NA NA NA NA
' only for varieties with a risk to spotted wilt of more than 25 points ' for varieties with 25 points or less for risk to spotted wilt
AT-PLANT INSECTICIDE
None 15 NA Other than Thimet 20G 15 NA Thimet 20G 5 NA
ROW PATTERN
Single Rows Twin Rows
TILLAGE
Conventional Reduced
25 20 20 15 25 20 25 20 20 15 15 15 15 15 10 10
10 5 0 0 0
0 0 0 5
NA NA NA
unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown
0 0 0
5 5
NA NA NA NA
NA NA NA
The Peanut Disease Risk Index, developed by researchers and extension specialists at University of Georgia, University of Florida, Auburn University, Mississippi State University, and Clemson University is officially known as "PEANUT Rx." To view the fully updated 2017 version of Peanut Rx by the authors based upon data and observations from the 2016 season and access the online calculator, visit www.ugapeanuts.com.
NICHINO AfvlERICJ\
CLASSIC- HERBICIDE
Yes 5 NA No 0 NA
CROP ROTATION WITH A NON-LEGUME CROP
0 1 2 3 or more
FIELD HISTORY
No Yes
IRRIGATION
No Yes
. "'
NA 25 NA 15 NA 10 NA 5
CALCULATE YOUR RISK Add your index values from:
Peanut Variety Planting Date Plant Population At-Plant Insecticide Row Pattern Tillage Classic Herbicide Crop Rotation Field History Irrigation
Your Total Index Value
High Risk 2':115 65-100
Medium Risk 70-110 40-60
Low Risk :565 10 - 35
Choose a Peanut Rx Spray Program
25 20 10 5
55-80
30-50
10-25
20 15 10 5
TBD
TBD
TBD
After determining your risk level for each fungal disease, use the most conservative fungicide program as a base for developing your per-field prescription spray program.
Count on DuPont to help you deal with the unexpected
Do Pont™
fungicide
21-0ay Interval, 4 to 5 Total Applications
(40 OAP Start) (60 OAP) (80 OAP) (100 OAP) (120 OAP)
!-,.,.--,.-·-~-~-·
iltii';irnWP ';··:;;~~~"''
r.:ci' ,X~!~j 1st Spray I 2nd Spray
Tebuconazole 7.2 fl oz/A+ I Fontelis'" 16 fl oz/A Chlorothalonil 16-24 fl oz/A
1 5•h spray only if needed - 120 days
3rd Spray I 4th Spray
Tebuconazole 7.2 fl oz/A+ I Fontelis'" 16 fl oz/A Chlorothalonil 16-24 fl oz/A
21-0ay Interval, 5 Total Applications
(30-35 OAP Start) (50-55 OAP) (70-75 OAP) (90-105 OAP)
Moderate Risk 1st Spray 2nd Spray
Tebuconazole 7.2 fl oz/A+ I Fontelis'" 16 fl oz/A Chlorothalonil 16-24 fl oz/A
3rd Spray 4th Spray
Tebuconazole 7.2 fl oz/A+ I Fontelis'" 16 fl oz/A Chlorothalonil 16-24 fl oz/A
14-0ay Interval, 7 Total Applications
5th Spray1
Chlorothalonil 24 fl oz/A
(110-120 OAP)
5th Spray (FINAL)
Chlorothalonil 24 fl oz/A
(30 OAP Start) (45 OAP) (60 OAP) (95 OAP) (109 OAP) (125 OAP)
1st Spray 2nd Spray 3rd Spray 4th Spray
Tebuconazole 7.2 fl oz/A+ I Tebuconazole 7.2 fl oz/A+ I Fontelis'" Chlorothalonil 16-24 fl oz/A Chlorothalonil 16-24 fl oz/A 16 fl oz/A
Fontelis'" 16 fl oz/A
14-0ay Interval, 6 Total Applications
(45 OAP Start) (60 OAP) (7 5 OAP) (90 OAP)
1st Spray 2nd Spray 3rd Spray 4th Spray
5th Spray
Fontelis'" 16floz/A
(105 OAP)
5th Spray
Headline 9 fl oz/ A Fontelis'" 16 fl oz/ A Fontelis'" 16 fl oz/ A Fontelis'" 16 fl oz/A Chlorothalonil 16-24 fl oz/A
OAP = days after planting Low-Risk Program sprays BEGIN at 40 days after planting and are continued on 21-day Intervals. Medium-Risk Program sprays BEGIN at 30 to 35 days after planting and are continued on 21-day Intervals. High-Risk Program Option 1 sprays BEGIN at 30 days after planting and are continued on 14-day spray intervals. High-Risk Program Option 2 sprays BEGIN at 45 days after planting and are continued on 14-day Intervals. Make no more than 3 sequential applications of DuPont'" Fontelis'" fungicide before switching to a fungicide with a different mode of action. Programs developed through the cooperation of UGA, UFL, Auburn and Mississippi State.
PEANUT ~
6th Spray 7th Spray
Chlorothalonil 16-24 fl oz/A
Chlorothalonil 16-24 fl oz/ A
(120 OAP)
6th Spray
Chlorothalonil 16-24 fl oz/A
l'rflj AUBURN UNIVF.RS I TY 1i COLLEOli OP ACRJCULTUP.E
tfi THH VN I VllR.S I TY OF OEOJ\0 1 .A
COLLEGE OP AGRICULTURAL & • ENVIRONMBNTAL SCIBNCBS
Develop a PEANUT Rx For each of the following factors that influence the incidence of TSWV or fungal diseases, the grower or consultant should identify which option best describes the situation for each peanut field. An option must be selected for each risk factor unless the information is " unknown." A score of "O" for any variable does not imply "no risk", but that this practice does not increase disease risk. Add the index numbers associated with each choice to obtain an overall risk index value. Compare that number to the risk scale provided and identify the projected level of risk.
PEANUT
,.._ .. "'
TSWV Leaf Spot Soil-borne Disease Points
Variety: Points Points White Mold Limb Rot
Aavorunner 458 or Rorunner 50 unknown unknown unknown NC-V 11 35 30 30 unknown AT-215 30 30 30 unknown Georgia Green 30 20 25 unknown Rorida Fancy 25 20 20 unknown Georgia-098 20 25 25 unknown RoRun 107 20 25 2 unknown Georgia Greener 10 20 20 unknown Georgia-02C 15 20 10 unknown Georgia-06G 10 20 20 unknown Rorida-07 10 20 15 unknown Georgia-07W 10 20 10 unknown Tifguard 10 15 15 unknown Bailey 10 15 10 unknown Georganic 5 10 10 unknown
TSWV Leaf Spot Soil-borne Disease Points Plant Stand: Points Points White Mold Limb Rot
Less than 3 plants per foot 3 to 4 plants per foot• 3 to 4 plants per foot' · More than 4 plants per foot
25 15 10 5
NA NA NA NA
0 0 0 5
' Only for varieties with a risk to spotted wilt of more than 25 points 'For varieties with 25 points or less for risk to spotted wilt
NA NA NA NA
TSWV Leaf Spot Soil-borne Disease Points Insecticide Used: Points Points White Mold Limb Rot
None Other than Thim et 20G or Phorate 20G Thimet 20G, Phorate 20G
15
15 5
NA
NA NA
NA
NA NA
The Peanut Disease Risk Index, developed by research and extension faculty at the University of Georgia, the University
NA
NA NA
of Florida, Auburn University, and Mississippi State University is officially known as "PEANUT Rx." To view the fully updated 2012 version of PEANUT Rx by the authors based upon data and observations from the 2011 season, and access the online calculator, visit www.ugapeanuts.com.
* Fontelis~ is not registered for use on peanuts in California. White mold is the common name for sclerotium rolfsii and southern stem blight
' Years Between TSWV Leaf Spot Soil-borne Disease Points Peanut Crops: Points Points White Mold Limb Rot
0 1 2 3 or more
Peanut Variety
Planting Date
Plant Population
At-Plant Insecticide
RowPattem
Tiiiage
Classic'" Herbicide
Crop Rotat ion
Field History
Irrigation
Your Total Index Value
..
Risk Category:
High Risk
Medium Risk
Low Risk
NA NA NA NA
TSWV Points
"'115
70-110
s65
25 15 10 5
25 20 10 5
20 15 10 5
Leaf Spot Soil-borne Disease Points
Points White Mold Limb Rot
65-100 55-80 TBD
40-60 30-50 TBD
10-35 10-25 TBD
Choose a PEANUT Rx Spray Program After determining your risk level for each fungal disease, use the most conservative fungicide program as a base for developing your per-field prescription spray program.
Thimet 20G is a restricted-use pesticide. Fontelis~ is not registered for sale or use in New York. Contact your DuPont retailer or representative for details and availability in your state. This reference guide is not intended as a substitute for the product label for the product(s) referenced herein. Product labels for the above product(s) contain important precautions, directions for use and product warranty and liability limitations that must be read before using the product(s). Applicators must be in possession of the product label{s) at the time of application. Always read and follow all label directions and precautions for use when using any pesticide alone or in tank-mix combinations. The DuPont Oval Logo, DuPont"', The miracles of science-, Classic• and Fontelis~ are trademarks or registered trademarks of DuPont or its affiliates. PEANUT Rx'" is a trademar1<. of The University of Georgia. Headline is a registered trademar1<. of BASF Corporation. Thimet is a registered trademark of Amvac Chemical Company. Copyright© 2012-2013 E.I. du Pont de Nemours and Company. All Rights Reserved. 3/13 Reorder No.: K-26598-1 {Replaces K-26598 and K-25538)
~~
PEANUT D-~~ ·x
tf Tilt Bravo· 21 days \!Elatus· 21 days \.!Elatus· 21 days ,;T eravo· 1.5 pt
+ 2.25 pt 9.5oz 9.5oz ~ Alto• 5.5 oz
-,;rf eravo· 1.5 pt
\JElatus· t{TiltBravo· \!Elatus· 4Teravo' 1.5 pt
+ 21 days 21 days + f.... Alto• 5.5 oz 9.5oz 1.5 pt 9.5 oz J,... Alto" 5.5 oz
\.!"' Elatus· (J-1eravo· \.1'Elatus· ., TBravo· \!Elatus· Jl{Bravo· 1.5 pt
+ 7.14 oz 1.5 pt 7.14 oz 1.5 pt 7.14oz A Alto• 5.5 oz
#(Tilt Bravo· f1'::r{8ravo' 1.5 pt
~Elatus· tf Tilt Bravo· \.,. Elatus· 1, 1eravo· 1.5 pt l!'Teravo· + +
1.5 pt J,... Alto• 5.5 oz 9.5oz 1.5 pt 9.5oz ,,,,,.. Alto• 5.5 oz 1.5 pt
Assess Disease Risk in Your Field and Develop a Peanut Rx This worksheet will leacl you through the four-step process of determining your disease risk level in order to customize a Peanut Rx"' for your individual field using the reverse side of this worksheet and with the assistance of your Syngenta representative.
For each of the risk index factors, identify which option best describes the situation for your fielcl and add the index value associated with each cl1oice to obtain your overall disease risk value. This worksheet does not contain all of the varieties included in the 2016 Peanut Rx or the notes that accompany each factor. To view the complete 2016 Peanut Rx, visit the University of Georgia peanut Web site at www.ugapeanuts.com.
Step 1: Assess Your Disease Risk
Variety Selection
Varicty1 Spotted Wilt Leaf Spot Soil-borne Disease Points Points Points White Mold
Solley' 10 15 10 Florida-072 10 20 15 Florida Fancy' 25 20 20 Fl0Runm 11072 20 25 20 Georgia-OGG 10 20 20 Georgia-07W 10 20 15 Georgia-0982 20 25 25 Georgia-12Y 5 15 10 Georgia-13M1,2 10 30 25 Goorgla-14N"'' 10 15 15 Georgia Green 30 20 25 Georgia Greener' 10 20 20 Tifguardi 10 15 15 TUFRunnerm•297•u 15 25 20 TUFRunner11·''727'2 20 15 15 TUFRunner1"''511 •1.2 20 30 15 Planting Date
Peorluts are planted: Spotted Wilt Leaf Spot Soil-borne Disease Points
Points Points White Mold Limb Rot Prior to May 1 30 0 10 0 May 1 lo May 10 15 0 5 0 May 11 to May 31 5 5 0 0 Juno 1loJune10 10 10 0 5 Alter June 10 15 10 0 5 Plant Population (final stand, not seeding rate)
Plant stand: Spotted Wilt Leaf Spot Soil-borne Disease Points
Points Points White Mold Limb Roi Less than 3 plants/ft 25 NA 0 NA 3 lo 4 plants/It {3) 10(15) NA 0(0) NA More than 4 plants/ft 5 NA 5 NA At-plant Insecticide
Insecticide used Spotted Wilt Loaf Spot Soil·borne Disouse Points
Points Points White Mold Limb Rot None 15 NA NA NA Other than Thimet 20G 15 NA NA NA Thlmot20G :; NA NA NA Row Pattern
Peanuts are planted in: Spotted Wilt Leaf Spot Soil-borne Disease Points
Points Points White Mold Limb Rot Single rows 10 0 !> 0 Twin rows 5 0 0 0 Tillage
Tillage type Spotted Wilt Leaf Spot Soil-borne Disease Points
Points Points White Mold Limb Rot Conventional 15 10 0 0 Reduced 5 0 5 5
Classic• Herbicide
Classic herbicide usage Spotted Wilt Lcnf Spot Soil-borne Disease Poinls
Points Points White Mold Limb Rot Classic applied 5 NA NA NA No Classic applied 0 NA NA NA Crop Rotation (with a non-legume crop) Years between Spotted Wilt Leaf Spot Soil-borne Disease Points peanut crop Points Points White Mold Limb Rot 0 NA 25 25 20 1 NA 15 20 ~5
2 NA 10 10 10 3ormore NA 5 5 5
Field History Have you had n problem Spotted Will Leaf Spot Soil-borne Disease Points controlling these diseases? Points Points White Mold Limb Rot No NA 0 0 0 Yes NII 10 15 10 Irrigation Ooes the field Spotted Wilt Leof Spot Soil-borne Disease Points receive irrigation? Points Points White Mold Limb Rot No NA 0 0 0 Yes NA 10 5 10
'Adequate research data is not a\ilatlrtb1e for all varieties \'/Jltl rn~1ards 10 a!I discilscs. Aclthtion;il varJclu1s will be 1ncludcd as tJata to support tlrn nss1gnmcnt of a11 1ntJc'< vnluc are 11vailalJlc. High OICIC varicly Varielics Georgia Greener and Bailey have 111crcasco resistance lo C}1mdroc1Mwm black rot (CBRi tMn do other vrui(l!ics commonly planted 111 Georgia.
, T1f9uard has cxccllont rcsl!;loncc to the peanut root-knot nematode.
Step 2: Calculate Your Severity Points
Fill in the following table to calculate your severity points for each of the lour major peanut diseases given the 1 O determining factors. Total each column to establish your disease index values.
Variety Planllng Date Plant Population At-plant lnseclic1de Row Pallern fillngc Classic Herbicide Crop Rolalion Field History Irrigation Your Total Index Value
Spotlcd Wilt Loaf Spot White Mold Rhizoctonia Limb Rot
Step 3: Interpret Your Index Values
Once you've calculated your index values, utilize the following information to interpret your risk level situation.
S11otlcdWilt Leaf Spot White Mold Rhizoctonia
Limb Rot Low Risk ,·,55 10-35 10-25 TBD Moderate Risk 70 110 40-60 30-50 TBD Higll Risk >. 115 65-100 55-80 TBD
In a year when tomato spotted wilt virus incidence is high statewide or in your region, even fields with a low risk level may experience significant losses. Consider the following recommendations to reduce your spotted wilt risk level:
• Use less susceptible varieties. • Adjust your planting date. • Consult the complete Peanut Rx for additional options that may
also provide limited benefit.
Step 4: Develop Your Peanut Rx
Once you have calculated your total risk for each fungal disease, uti lize the most conservative fungicide program as your guide for customizing a per field prescription spray program with the assistance of your Syngenta representative. Syngenta recommended fungicide spray programs for each risk level are included on the reverse side of this worksheet.
Programs developed through the cooperation of
ffi TUI-: U S I Vl-.~SITT OF liF.OR<ili\
COLl .. l!GE OF A GRICULTURAL & ENVIRON ME NTAL SCIENCES
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• MISSISSIPPI STATE UN I V I II I I t '•
EXTENSION SERVICE
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Field Name: Plant Date: Disease Risk Fungicide Worksheet - ---- ---·--- --
PEANuT 2015
Moderate Risk ! Program
Leaf Spot Leaf Spot Leaf Spot
White Mold Limb Rot
Program Start: 45 days after planting.
Echo' Mazinga" CP - Muscle' AD/ funaldde Co-Pack funzlddo
24 01/A [cho1+7.201/A Mazinoa CP 32 01/A
1Add Echo 720 Fungicide to spray tank to supply 24 oz/A
Program Start: 40 days after planting.
Leaf Spot
• r
Muscle'M:JV -- Muscle' M:JV Funakklo
Echo' Mazinga" CP fun,SCid• Co-Padc. fi.w'l&lddo
1601/Afcho+ 7.201/AMa1ingaCP 32 01/A 32 01/A
•use Muscle ADV as an alternate to Echo Tetraconazole depending on white mold pressure.
Program Start: 30 days after planting.
Leaf Spot White Mold
Limb Rot Leaf Spot Leaf Spot
- MJnilddo Muscle' ADV Muscle' AD/ Funt!ddo
32 01/A
,, .. • Muscle' ADV - Fun&'d<fo
32 01/A -32 oz/A
- ;;;n·t I mm.il~I Echo' Mazinga·· CP Funpdde Co-Pack
16 01/A fcho + 7.2 01/A Mazinga CP1
High Risk Program
Echo' Mazinga" CP ~ Echo' Mazinga· CP ~ Muscle'ACN ~ Muscle' ACN ~ Muscle'ACN ~ Muscle'ACN ~ liP'B Mal1\dt>Co-r.cll ~ fvrckld.Co-hc~ ~ ~ ........,,.. Fl.ll'l(fclde ~ F...,,~ ........,,.. ~Ide ~ · - •
16 01/A fcho + 7.2 01/A Ma1inga CP 16 01/A fcho + 7.2 oz/A Ma1inga CP 32 01/A 32 oz/A 32 01/A 32 01/A 24 01/A
Your Program
Echo Mazinga CP is provided in a dual-chambered container containing a standard-use ratio of 16 oz. Echo chlorothalonil
and 7 .2 oz. Mazinga CP tetraconazole. Muscle ADV is a pre-mix
combining a standard-use ratio of Echo chlorochalonil
and Muscle tebuconazole.
Programs developed through the cooperation of: I fi1 "" '''""""' '" '""'"" Cou.roam AGKICVJ.TURAJ.~
E N\ ' I RONM EN'tAL SCll\NCf.S
~-Sipcam __.\,,'") ri
The Natural Choice'"
www.sipcamadvan.com 800-295-0733
''.'2015 S1pcam Agro USA, Inc. Er.ho and Muscle arr. registored lrademarks of S1pca111 Agro USA. Inc. MaZtn\la CP is a trademark of S1pcam Awa USA, Inc. The Natural Choice 1s a trademark of Advan LLC. Peanut Rx is a trademark of the Un1v1Jrs1ty of Georgia. ,,, Tl11met 20G is a registered trodr.m;:irk of Amvac Chemicnl Corporntion Classic 1s a registered trademark of E.L du Pont dr. Nemours :rnd Company. Unrvorsity logos arc registered trademarks of their res er.five universities_ Al
THE NATURAL CHOICE - - - -- --
Calculate risk to determine fungicide program. PEANUT~ This Universicy of Georgia Peanuc Rx1
M worksheet enables you co determine peanuc disease risk levels and select or develop the appropriate SipcamAdvan fungicide program - detailed on the reverse side. For complete foocnores and information, click on u20 15 UGA Peanuc Produccion G uide" ac www.ugapeanuts.com. 2015
Step One ... assess disease risk. . .
Variety' Spotted Will Leal Spol Soil-Borne Disease Points
Poinls Points While Mold Bailev' 10 15 10 Florida-07' 10 20 15 Florida Fancv' 25 20 20 AoRun" '107., 20 25 20 Georoia-06G 10 20 20 Georoia-07W 10 20 15 Georoia-098' 20 25 25 Georaia·12Y' 5 20 15 Georoia Green 30 20 25 Georaia Greener' 10 20 20 Tifouard' 10 15 15 TUFRunner" '727' .. 15 15 15 TUFRunner"' '511 '" 20 30 15
Planting Date
Peanuls are planted: Spotted Will Leal Spot Soil-Borne Disease Points Points' Points While Mold Limb Rot
Prior to Mav 1 30 0 10 0 Mav 1 to Mav 10 15 0 5 0 Mav 11-Mav 31 5 5 0 0 June 1-June 10 10 10 0 5 After June 10 15 10 0 5
Plant Population (final stand, not seeding rate)
Plan! Sland: Spotted Will Leal Spot Soil-Borne Disease Points
Points' Points White Mold' Limb Rot Less than 3 olants oer foot 25 NA 0 NA 3 to 4 plants per foot' 15 NA 0 NA 3 to 4 plants per foot' 10 NA 0 NA More than 4 olants Per foot 5 NA 5 NA
At-Plant Insecticide
Insecticide used: Spotted Will Leal Spot Soil-Borne Disease Points
Points• Points While Mold limb Rot None 15 NA NA NA Other than Thimeie 20G 15 NA NA NA Thimet 20G 5 NA NA NA
. ; l ~ .
Peanuls are planled in: Spotted Will Leal Spot Soil-Borne Disease Points Points Points While Mold I Limb Rot
Sinole rows 15 0 5 I 0 Twin rows 5 0 0 I 0
Tillage
Tiiiage: Spotted Will Leal Spol Soil-Borne Disease Points
Points Points" WhileMold I Limb Rot Conventional 15 10 0 I 0 Reduced'° 5 0 5 I 5
.. Spotted Wilt Leal Spot Soil-Borne Disease Points
Points Points WhiteMold I Limb Rot Classic Aoolied 5 NA NA I NA No Classic Aoolied 0 NA NA I NA
Crop Rotation with a Non-Legume Crop
Years Between Peanut Cropsu Spotted Wilt Leal Spot Soil-Borne Disease Points Points Points While Mold Limb Rot
0 NA 25 25 20 1 NA 15 20 15 2 NA 10 10 10 3 or more NA 5 5 5
Field History Previous disease problems in Spotted Wilt Leaf Spot Soil-Borne Disease Poinls the field?" Points Points WhiteMold I Limb Rot NO NA 0 0 I 0 YES NA 10 15 I 10
Irrigation Does the field Spotted Will Leal Spot Soil-Borne Disease Poinls receive irrioalion? Poinls Poinls WhileMold I Limb Rot NO NA 0 0 I 0 YES NA 10 5 I 10
tep Two . calculate disease r1~k.
Add your index values from:
Peanut Variety Planting Date Plant Population At-Plant Insecticide Row Pattern Tiiiage Classic" Herbicide Crop Rotation Field History Irrigation
Yot1r Total Index Value
Spolled Wilt Leal Spot White Mold
Step Three .. . interpret disease risk.
Calculale your poinls and use I Spotted Will I lhis chart to delermine risk. Points
Leal Spol ! While Mold I Points Points
Low Risk I ~ 65 I 10-35 I 10-25 I
Rhizoctonia Limb Roi
Limb Rot Points
TBD
Low Risk for fungal diseases: These fields are likely to have the least impact from fungal disease. Growers have made the management decisions which offer maximum benefit in reducing the potential for severe disease; these fields are strong candidates for modified disease managemenl programs that require a reduced number of fungicide applications.
Moderate Risk I 70-110 I 40·60 I 30-50 I TBD
Moderate Risk for fungal diseases: Growers can expect better performance lrom slandard fungicide programs. Reduced fungicide programs in research studies have been successfully implemented when conditions are not favorable for disease spread.
High Risk I ? 115 I 65·100 I 55-80 I TBD
High Risk lor fungal diseases: Growers should always use lull fungicide inpul program in a high-risk situation.
Step Four ... develop a program.
Afcer incerprecing risk, refer ro che fungicide programs on the reverse side and consulc your SipcamAdvan d istribucor. 1 Adequate research data is not available for all varieties with regards to all diseases. Additional varieties
will be included as data to support the assignment of an index value are available. 2 Varieties Georgia Greener and Bailey have increased resistance lo Cynlindrocladium black rot (CBR)
than do other varieties commonly planted in Georgia.
3 High oleic variety.
4 Tdguard has excellent resistance to the peanut root-knot nematode. 5 Only plant during conditions conducive to rapid, uniform emergence. Less than optimum conditions
at planting can result in poor stands or delayed, staggered emergence, both of which can contribu1e to increased spotted will. Nole: a twin rr1W is considered to be one row for purposes ol determining number of plants per toot of row
6 It is known that closer planted peanuts tend to have an increased risk to white mold. 7 This category (15 risk points for spotted wilt) is only for varieties with a risk to spotted will of
MORE THAN 25 POINTS.
8 This category (10 risk points for spotted wilt) is tor varieties with 25 points or less tor risk lo spotted will.
9 An insecticide's inHuence on the incidence of TSWV is only one factor to consider among many when making an insecticide selection. In a given field, nematode problems may overshadow spotted wilt concerns and decisions should be made accordingly.
10 for fungal diseases, this does not apply for reduced tillage situations where peanut is following directly behind peanut in a rotation sequence. Limb rot can exist on some types or crop debris and use the organic matter as a bridge to the next peanut crop.
11 "Funky" or "irregular" leaf spot lends to be more severe in conservation tillage, though this malady is not typically associaled with yield losses.
12 Use of Classic Herbicide is not recommended for fields planted to Georgia-066. Research has documented a slight, yet consistent, yield reduction when Classic Herbicide is applied specitically lo Georgia-OGG.
13 All crops other than peanut are acceptable in a rotation lo reduce leaf spot. Cotton and grass crops 1·~11 reduce the severity ol while mold. Rhizoctonia limb rot can still be a si~nilicant problem, especially with cotton, under a longer rotation with favorable conditions, e.g. heavy vme growth & irrigation/ rainfall. Rotation with soybeans can increase risk to while mold, Rhizoctonia limb rot, and CBR. Rotation with grass crops will decrease the potential risk ol limb rot; tobacco and vegetables will not Note Iha! rotation ol peanuts w~h soybeans may lower the risk tor leaf spol diseases, but ii does not reduce lhe risk to CBR or peanut root-knot nematodes and only has minimal impact on risk to white mold or to Rhizoctonia limb roL
14 "YES" would be appropriate in fie lds where leaf spot and/or soil-borne diseases were a problem in the field despite use of a good fungicide program.