Scientists have made genetic modifications to cotton to increase its resistance to insect pests.

科学家对棉花进行了基因改造，以增强其对害虫的抵抗力。

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This provided good corn germplasms for our breeding research on resistance to insect pests.

为我国抗病虫育种提供了较好的种质资源。

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Therefore people have to study the pest resistance, and insect pests resistance to insecticides is the most active study in this area.

为此，人们不得不进行有害生物抗药性的研究，而害虫抗药性的研究则一直是有害生物抗药性研究中最活跃的领域。

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There are two major traits among these GE crops: resistance to certain insect pests, and resistance to a weed-killer called glyphosate.

VOA: standard.2010.04.15

Some of the characteristics that scientists genetically implant into crops such as resistance to insect pests could make them as successful off the field as on it.

ECONOMIST: Development and the environment

Insect resistance, however, might be expected to be as much of an advantage in the rough and tumble of the wild as in the cosseted environment of the farmer's field.

ECONOMIST: GM crop plants are less weed-like than weedy

However to date, the only widely used traits developed by genetic modification are herbicide tolerance and Bt insect resistance.

BBC: UK urged to lead on future food