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 & Formulation(s)
Fortress 2.5G
Fortress 5G
(SmartBox)
Lorsban 15 G
Lorsban 14E
generics
Aztec 2.1G
Aztec 4.6G
(SmartBox)
Capture 2E
Force 3G
Regent 4SC
Poncho (treated seed)
YieldGard RW
Factors:

Performance: test plots- band application
  Root damage rating1
  Consistency of performance (%)2

Fortress 5G

2.2
95

Lorsban 15G

2.4
77

Aztec 2.1G

2.1
100

Capture 2E

2.4
81

Force 3G

2.2
100

n/a

n/a

n/a
Performance: test plots - infurrow application
  Root damage rating1
  Consistency of performance (%)2
Fortress 5G

2.1
98
Lorsban 15G

2.3
80
Aztec 2.1G

2.7
95
Capture 2E

2.4
81
Force 3G

2.2
100
Regent 4SC

2.6
72
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
2.1
75
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

2.1
88
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
ES


C
W
N


Y
Y
N
Y
Y
Y
Y

N
PES


W
n/a
Y



N
Y
N
Y
Y
Y
Y

N
PE


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
N
N
N

n/a
n/a


n/a
n/a
N



N
N
N
N
N
N
N

*Key to symbols: -- = inadequate information, n/a = not applicable, D = danger, W = warning, C = caution, Y = yes, N = no, P = popcorn, E = seed corn, S = sweet corn.
**See "Insecticide/Herbicide Plant Interaction" on page 5
1 Average root damage rating (Hills and Peters 1-6 scale) in 11-20 tests over five years (2000-2004), where damage in the untreated plots exceeded 3.0 or greater will likely predispose plants to significant yield losses. The untreated plots averaged 4.3.
2 Percentage of root masses where damage rating was less than or equal to 3.0 when the untreated equaled or exceeded 3.0. Tests from 2000-2004.
3 Insecticide not included if label states “for suppression,” “reduction of,” “aids in control,” or “control of light to moderate infestations only.”
4 2004 Data only.
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