FAW prefers corn in the whorl stage causing foliar injury very similar to that of the true armyworm.
In general, FAW is not a problem on field corn, but in an outbreak year it may cause significant damage to corn and is difficult to control in contrast to common armyworm which is relatively easy to control.
If fall armyworm is found, 20 plants should be checked in 5 areas of the field (100 plants).
Rescue treatment is warranted when 25% or more of stand is found infested with larvae present. Severity of damage observed is a primary criteria for determining the need for treatment.
Fall armyworm is more difficult to control than common armyworm, thus expense and potential efficacy of treatment should be taken into consideration.
Ambush* @ 6.4 to 12.8 fl oz/A
Capture* EC @ 2.1 to 6.4 fl oz/A
Lannate*@ 0.23 to 0.45 lb a.i./A
Lorsban* 4E @ 1 to 2 pt/A
Mustang* @ 2.9 to 4.3 fl oz/A
Pounce* 2EC @ 4 to 8 oz/A or 25WP @ 6.4 to 12.8 oz/A
* Use is restricted to certified applicators.
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