Ladys finger crop after having encounter fertilizer it gets white layered and affects the growth of plant kindly suggest me ideas to yield better

Gokul It’s for Powdery Mildew Please click the green link to see the details information. Thank you.

Мучнистая роса нужно использовать фунгицид на основе меди

For this problem you can use a milk solution 5-10% (water and milk) to promote the control

Bordeaux mixture and copper fungicides are a good solution to treatment too