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North Dakota Small Grain Production ... Assuming a crop price of $6.00 per bushel and a spraying cost of $10.00 per acre ($6.50 for an insecticide and $3.50 for the application cost), the economic threshold would be three bertha armyworm larvae per square foot.
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www.ag.ndsu.edu/procrop/rps/bertha08.htm
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Native to North America, the armyworm can be found east of the Rocky Mountains, reaching northward into southern Canada. Armyworms get their name from their behavior of moving across fields in an army-like fashion.
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ipm.illinois.edu/fieldcrops/insects/armyworm/index.html
ipm.illinois.edu/fieldcrops/insects/armyworm/index.html
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Army worm - Wikipedia, the free encyclopedia
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The Fall Armyworm ( Spodoptera frugiperda ) is part of the order of Lepidoptera and is the caterpillar life stage of a moth. It is regarded as a pest and can wreak havoc with crops if left to mult...
en.wikipedia.org/wiki/Army_worm
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Armyworm, Pseudaletia unipuncta ... Armyworms often invade grasses in wet areas and may become most abundant after flooding has occurred. Plants that have lodged to make a dense canopy are often infested with the highest numbers. This species is a true armyworm;
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entoplp.okstate.edu/ddd/insects/armyworm.htm
entoplp.okstate.edu/ddd/insects/armyworm.htm
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Armyworm (Pseudaletia unipuncta). All images, unless otherwise noted, were created by staff from the University of Nebraska Department of Entomology. ...
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entomology.unl.edu/images/smgrains/armyworm/armyworm.ht...
entomology.unl.edu/images/smgrains/armyworm/armyworm.htm
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February 2 ,1999 Do you have any suggestions on Army Worms that took over the Tri-Cities this fall??? our yard looks very bad as do many, Rick is going to put down sod. Any preventive advice would be appreciated!!! ... Armyworms are actually the caterpillar life stage of a moth. ... A frost may kill the larvae off,
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www.thegardenhelper.com/armyworm.html
www.thegardenhelper.com/armyworm.html
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click to enter...
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www.armywormwine.com/
www.armywormwine.com/
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Armyworms typically have black stripes on the four paris of larger prolegs ... ; Related images:; Armyworm; Armyworm; Fall Armyworm; Yellowstriped Armyworm; ... Entomology Image Gallery > Butterflies and Moths > Armyworm...
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www.ent.iastate.edu/imagegal/lepidoptera/armyworm/069ar...
www.ent.iastate.edu/imagegal/lepidoptera/armyworm/069armyworm.html
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6 Fall Armyworm / Boll Worm Early Instar Species Determination ... 7 Suggestions for Identifying Small Fall Armyworm Larvae ... Early planting of corn is the most effective management option for fall armyworm. In cotton control of this pest with insecticides is very difficult due to the proximity of damaging populations.
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wiki.bugwood.org/Fall_armyworm
wiki.bugwood.org/Fall_armyworm
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