Factors to Consider When Choosing a Product for Corn Rootworm Protection*
Insecticide Class
Organophosphates
Pyrethroids
Fiproles
Nicotinoids
Transgenic
Chemical Name
chlorethoxyphos
chlorpyrifos
tebupirimphos
& cyfluthrin
bifenthrin
tefluthrin
fipronil
clothianidin
Cry3Bb1
Trade Name & Formulations(s)
Fortress 2.5G
Fortress 5G
(SmartBox)
Lorsban 15G
Lorsban 4E
generics
Aztec 2.1G
Aztec 4.6G
(SmartBox) generics
Capture 2E
Force 3G
Regent 4SC
Poncho 1250
(treated seed)
YieldGard RW
Factors:
Performance: test plots - band application
 Root damage rating1
 RootConsistency of performance (%)2
Fortress 5G
0.21
92
Lorsban 15G
0.26
83
Aztec 2.1G
0.20
91
Capture 2E
0.34
68
Force 3G
0.24
84
n/a
n/a
n/a
Performance: test plots - infurrow application
 Root damage rating1
 Consistency of performance (%)2
Fortress 5G
0.26
77
Lorsban 15G
0.27
81
Aztec 2.1G
0.18
92
Capture 2E
0.40
59
Force 3G
0.26
76
Regent 4SC
0.45
71
n/a
n/a
Performance: test plots - treated seed
 Root damage rating1
 Consistency of performance (%)2
n/a
n/a
n/a
n/a
n/a
n/a
Poncho 1250
0.36
81
n/a
Performance: test plots - genetically modified
 Root damage rating1
 Consistency of performance (%)4
n/a
n/a
n/a
n/a
n/a
n/a
n/a
YGRW
0.11
94
Technical information
 Registered for use at cultivation
 Registered for popcorn/seed corn/sweet corn
 Human hazard (signal word)
  Granular formulation
  Liquid formulation
 Restricted-use pesticide
 Labeled for control of other soil pests at the rootworm rate3
  billbugs
  cutworms
  nematodes
  seedcorn beetle
  seedcorn maggot
  white grubs
  wireworms


N
PES

D
n/a
Y

N
Y
N
N
Y
Y
Y


Y
E

C
W
N

Y
Y
N
Y
Y
Y
Y


N
PES

W
n/a
Y

N
Y
N
Y
Y
Y
Y


N
PES

n/a
W
Y

N
Y
N
Y
Y
Y
Y


Y
PES

C
n/a
Y

N
Y
N
Y
Y
Y
Y


N
E

n/a
W
Y

Y
N
N
Y
Y
Y
Y


n/a
PS

n/a
n/a
N

N
Y
N
N
Y
Y
Y


n/a
n/a

n/a
n/a
N

N
N
N
N
N
N
N

*Key to symbols: n/a = not applicable, D = danger, W = warning, C = caution, Y = yes, N = no, P = popcorn, E = seed corn, S = sweet corn.
1Average root damage rating (Node Injury Scale 0-3) where damage in the untreated plots exceeded 0.25 or greater that will likely predispose plants to significant yield losses. The untreated plots averaged 1.47.
2Percentage of root masses where damage rating was less than or equal to 0.25 when the untreated equaled or exceeded 0.25. Tests from 2002-2006.
3Insecticide not included if label states “for suppression,” “reduction of,” “aids in control,” or “control of light to moderate infestations only.”
42004-2006 Data only.