Why do wheat leaves curl?

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We need to consider these things to find out why:

1. In wheat, it can be caused by a mite or a lice attack. For this, the affected leaves should be carefully opened and examined with the help of magnifying glass.
2. It may also be due to the shortage of water in the crop.
3. Climate change, which can be caused by sudden daytime temperatures and nighttime conditions such as cold or drought.