My sister is mine
After Yu Dong succeeded in selling the vegetables for a high price, she decided to earnestly work harder for the villagers. She couldn't tell them that there was going to be a locust plague lest the matter was spread all over the town and other villages.
If everyone found out that there was going to be another plague, then it might lead to another round of hoarding something that Yu Dong did not wish to happen.
She carefully considered everything and thus started loaning out money to the villagers to create greenhouses to protect their crops. She couldn't stop them from growing vegetables, which was why she held a meeting and announced that if they wanted to sow the seeds then they needed to build a greenhouse over their fields.