Understanding thepassage
Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year.
•Planting of cotton, which is bioengineered to produce its own insecticide against bollworms, sustained little bollworm damage.
•Bollworms are a major cause of crop failure.
•These cotton plantations have barely suffered any damage from bollworms in the past.
•But this year has been different.
...
Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year.
•Planting of cotton, which is bioengineered to produce its own insecticide against bollworms, sustained little bollworm damage.
•Bollworms are a major cause of crop failure.
•These cotton plantations have barely suffered any damage from bollworms in the past.
•But this year has been different.
...
