*Protection and use of natural enemies* * Protection of wheat fields Natural enemies Wheat fields in the vast majority of wheat areas are wintering grounds for various natural enemies and breeding bases for early spring. They are the main source of natural enemies in cotton fields. If natural enemies in wheat fields are not protected, natural enemies are protected in cotton fields. it is invalid. Because natural enemies do not have a source. ※ Improve farmland operations Irrigation of cotton fields should be done with furrow irrigation as far as possible to avoid flooding. The cotton fields fertilize more farmyard manure, maintain and improve the soil structure, which is conducive to breeding and habitat of natural enemies.
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