Zhao Qinghuai eventually returned to the army, which didn't surprise Lin Ying at all. Because she knew he belonged there.

However, what concerned her was that Shan Yubang had given Zhao Qinghuai a document when he left, suggesting he had received something important. Most importantly, he glanced at Haoyu before leaving.

Lin Ying had gotten used to Zhao Qinghuai leaving again. Especially after Zhao Qinghuai himself confirmed that the armor he wore could stop bullets.

Lin Ying felt even more relieved.

Life went on, and after a year of research, Lin Ying finally developed a pesticide that was long-lasting in its insect-repellent and pest-controlling effects and did not harm crops.

This was a solution she found after constantly browsing various online marketplaces.

No matter what kind of medicine it is, whether it's traditional Chinese medicine or chemical medicine, sprinkling it on the ground will only have a temporary effect. It will evaporate after a while.

Therefore, Lin Ying only needs to solve the problem of making the drug's effects last longer.

Lin Ying saw a volatile disinfectant being sold in a shopping mall and then improved upon it to create this new type of insect repellent pill.

This pill doesn't need to be buried in the ground. Instead, simply put it in a cloth bag and hang it in the ground. One pill can keep out insects within a radius of fifty meters, and it can last for a year even with wind and rain.

After Lin Ying finished making it, she was very happy and went to find the commander of the farm.

The commander hadn't expected Lin Ying to create something like this, but ultimately abandoned the project due to cost issues. The reason was simple: growing grain does require spraying pesticides several times a year, but pesticides are much cheaper. In other words, the cost of pesticide pills is more than three times that of pesticides.

With the current economic difficulties, we should still try to save money wherever possible.

Lin Ying felt a little regretful after hearing the commander's words, but she also understood what he meant.

"It's okay. I just felt a little guilty that the farm gave me so much grain back then. I don't know much, but I just wanted to help everyone."

The commander smiled and said, "It's enough that Comrade Lin Ying has this intention. From now on, you just need to live your own life well, that's better than anything else."

Lin Ying naturally sensed the distance in his words and smiled, "In that case, I won't disturb the Commander's time any longer."

Lin Ying actually felt quite embarrassed; it's true that you can't make a sale by being too eager. This was the first time she had ever taken the initiative to do this. She never expected to be rejected.

After returning home, Lin Ying was still a little disappointed, but she quickly adjusted her mindset. She thought that since the farm couldn't use it, maybe she could try promoting it in the village. If it could help protect the village's crops from pests and allow everyone to harvest more grain, that would be good.

So she showed the village chief the insect repellent pills she had developed, and explained in detail their effects and how to use them. The village chief's eyes lit up immediately, and he repeatedly praised Lin Ying, saying, "Lin Ying, this is truly a wonderful thing! If our village used this, the crop yield would definitely be better. I just wonder what the cost is?"

Lin Ying smiled and said, "Village chief, the cost is a bit higher than ordinary pesticides, but its effects are long-lasting. One pill can last for a year and can cover an area of ​​fifty meters in radius. In the end, it's actually quite cost-effective."

After listening, the village chief stroked his chin and pondered for a while, then said, "Hmm, what you said makes sense, but most people in our village make a living by hunting. As you know, farming is not a good option either."

"Everyone's a bit strapped for cash, so if the price is too high, it might be difficult to promote."

Lin Ying nodded, understanding the situation, and said, "Village Chief, I know everyone is having a hard time. How about this, I'll distribute this first batch of pills to everyone for free to try first and see how they work. If they really work, then we can discuss what to do next."

Upon hearing this, the village chief quickly waved his hand and said, "No way! You put a lot of effort into developing this, how can we let you use it for free? Here's what we'll do: I'll go and call a meeting to discuss this with everyone and see what you all think. If you're willing, we can pool our money and give you some of the cost."

Lin Ying quickly said, "Village chief, really, there's no need. I just wanted to help everyone, I wasn't thinking about making money. Please don't make things difficult for me."

The village chief looked at Lin Ying with gratitude and said, "Lin Ying, you are so kind. I thank you on behalf of everyone. I will go and arrange the meeting now."

Not long after, the village chief gathered all the villagers together and explained in detail about the insect-repelling pills developed by Lin Ying. The villagers discussed it animatedly; some thought it was a good product, while others worried it wouldn't work and they'd be wasting their money. At this point, several villagers who were close to Lin Ying stood up and said, "Comrade Lin Ying always treats us with utmost care and dedication. What she makes can't be bad; I'm willing to give it a try."

With these individuals taking the lead, many villagers followed suit, expressing their willingness to give it a try.

Lin Ying was overjoyed by everyone's support: "In that case, I'll tell you about some simple medicinal herbs so you can go up the mountain to collect them yourself. Except for some herbs that you need to buy at the pharmacy, you can save a lot of money by collecting the rest yourself."

Hearing Lin Ying say this, the villagers were much happier: "We can live in the mountains to collect herbs, which will make it convenient!"

"The medicinal herbs can only be harvested after the snow melts. Until then, use the ones here. You can give them to me after everyone has harvested their herbs."

Everyone agreed with Lin Ying's suggestion.