Teacher, what medicine should cucumber black star use? It's already uploaded.

The cucumber in the picture is physiological dryness caused by gas loss or improper ventilation.

Cucumber scab can be controlled by spraying difenoconazole, pyraclostrobin, myclobutanil, flusilazole, tebuconazole and diniconazole. , spray/kloc-0 every 7- 10 days, 2-3 times in a row, and pay attention to alternate medication.