Download PEANUT NEMATODE CONTROL

South Carolina Pest Management Handbook for Field Crops - 2017
PEANUTNEMATODECONTROL
DanAnco,ExtensionPeanutSpecialist
JohnD.Mueller,ExtensionPlantPathologist
Fortunately,nematodeshavebeenarelativelyminorproblemonpeanutsinSouthCarolina.Peanutroot‐knot(race1)
nematode is capable of causing severe losses, but economic injury has been very rare. Lesion nematode frequently
causeshullinjuryongreenpeanutsandcancauseyieldreductionunderextremelyhighpopulations.Stingnematodeis
rarely found in peanut fields in South Carolina, but when observed damage can be severe even at relatively low
populations.Hullinjuryfromnematodeinfectioncanalsoleadtoincreasedfungalcolonizationanddiseaseofpods.
NematodemanagementisnotrecommendedforpeanutsinSouthCarolinaunlessinjuryordamagetopeanuts
hasbeendocumented.Croprotationandresistancearethemosteconomicalanddesiredmanagementstrategiesfor
minimizing nematode problems. A nematode resistant variety (Georgia 14N, Tifguard, TifNV‐High O/L) is
recommendedforfieldswithadocumentedhistoryofpeanutroot‐knotnematodeinjuryonpeanut.Afumigantlike
TeloneII(field‐wide:6–9gal/A,in‐row:4.5–6gal/A)orVapamHL(6.61floz/100linearrowft)applied2weeksata
depthof12”priortoplantingcanbeusedtosuppressnematodes.Alternatively,VelumTotal(18floz/A)canbeapplied
in‐furroworthrough root‐zone chemigationto manage nematodesnearthetaproot. Propulse(13.6 fl oz/A)can be
appliedatpegging(~45DAP)tomanagenematodesinthefruitingzonebutmustbewateringintobeeffective(0.10–
0.25 in/A water). AgLogic 15G (aldicarb) (7 lb/A at‐planting, with an optional pegging application at 10 lb/A) has
recentlybeenapprovedforuseinnematodemanagement,thoughcurrentsupplymaybelimited.
PeanutsareanexcellentrotationcroptosuppressReniform,SouthernRoot‐knotandColumbialancenematodesin
cotton.
FieldCropHostsforCommonNematodes
Root‐knot
Peanut Peanut
Renifor
Crop
Southern race1 race2 Northern Lesion Lance Soybeancyst Sting Ring
m
Peanut
‐
+
‐
+
+
‐
‐
±
+
‐
Cotton
+
‐
‐
‐
+
+
‐
+
+
+
Corn
+
+
+
+
+
+
‐
+
±
‐
Soybean
+
+
+
+
+
+
+
+
±
+
Tobacco
+
+
+
+
+
‐
‐
‐
+
+
Small
+
+
+
+
+
+
‐
+
+
‐
grain
‐(wheat)
Grain
+
+
+
?
+
?
‐
+
‐
‐
sorghum
Tomato
+
+
+
+
+
‐
‐
+
+
?
+indicateshost;‐indicatesnon‐host;±indicateshostreactioncanvarybasedonpopulation.AdaptedbyJ.D.
Muellerfrom:Powell,W.M.1990.PlantsusceptibilitytomajornematodesinGeorgia.Univ.ofGeorgiaExtension
Bulletin904;andDickerson,O.J.,J.H.Blake,andS.A.Lewis.2000.NematodeguidelinesforSouthCarolina.Clemson
Univ.ExtensionCircular703.
202