Hello, i'm guo of the teacher's team. This issue is about cabbage. The day before, a master told me that three days after they had planted this year's cabbage, they didn't see it, and that all went to the ground without it, which was actually a pest. What kind of pest is this? The snails don't know why。
A few days ago, growers told us that snails crawled on the corn and bit the corn wire, directly affecting the pollination of the corn. This year, snails are especially powerful. Just looked at this cabbage field. It's harmless. Why isn't there a snail on this land, and there are snails on the old man's land? The simple reason is that this year's cabbage is constantly using pesticides to prevent snails。
There are indeed more methods to combat snails, mainly the awareness to combat snails in advance. The more widely used pesticide is tetraacdehyde, which is powdered and granular. Particle agents may be selected for sowing in cabbage seedlings or sprayed with powdered water. Any pesticide has its validity and should preferably be sprayed once in seven to ten days。
Another approach is the use of grass-wood ash, which can spread over the leaves of cabbage, preventing snails and killing bacteria. A week can be spread around the nursery, which prevents snails from entering. Any pesticide or physical method is used earlier。
This concludes our programme for today, and i hope that you can enjoy it and help us. I'll see you next time。
