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Encyclopedia > Cotton bollworm

A cotton bollworm is a common term for any larva of a moth that attacks the fruiting bodies of the cotton plant. The two most important species are: A larva (Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians). ... A moth is an insect closely related to the butterfly. ... Cotton is a soft fibre that grows around the seeds of the cotton plant, a shrub native to the tropical and subtropical regions of both the Old World and the New World. ...

  • The American Cotton Bollworm or Corn Earworm (Helicoverpa zea)
  • The African Cotton Bollworm or Tomato Grub (Helicoverpa armigera)
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  Results from FactBites:
 
Bt Cotton -- Another Magic Bullet? (3171 words)
Bt cotton was heralded for its environmental and human health benefits and as a step towards sustainable agriculture since, according to Monsanto, farmers could significantly reduce insecticide use.
Bollworms were also more difficult to scout because in some cases the Bt cotton canopy was denser, the first fruit-set stage was more compressed, or the behavior of the pests changed.
The cotton bollworm problem is the first major test of EPA's resolve to follow through on the resistance management requirements of conditional registrations for Bt crops.
Crop Profiles (5712 words)
Cotton varieties with the Bt gene are not widely used (<1% of the acreage) because of the high seed costs and growers generally achieve economic control of the bollworm/budworm complex with insecticides.
The primary insect pest of cotton in Missouri is the boll weevil.
Approximately 50% of the cotton acreage is inter-planted to winter wheat primarily to suppress wind erosion and sand injury to young seedlings.
  More results at FactBites »


 

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