Pesticides can be purchased online. There are many websites such as some chemical trading platforms or Alibaba. Our company sells reagents and just settled in Hualang Chemical Mall at the end of last year. I see that they also sell pesticides on their website. There are many categories and the prices are relatively low. However, if you want to buy, it is best to compare multiple suppliers or go to other websites to compare. It is best not to buy directly on the details page, but to make inquiries, which will be more cost-effective. If you have time, you can go and have a look, just search "Hualang" on Baidu.