Hi Olga. You're absolutely right, the leeks in the photo look miserable.
I will tell you the possibility that this situation may have its origin, and the solution is in your hands. The “grass” plant you refer to is a postillon (Arum maculatum) but there is also the sapelar (Stellaria media) and I would say that there are also some carrots (Daucus carota). And yes, the leek likes the art of grass, because he's a humid lover. The most important thing is to have a deep, fresh land, and a lot of manure, with manure or old pit. As I see in the photo, the ground is regular. The emergence of Ilarrondoa also indicates that the land has not been prepared in depth. And finally, to have a couple of months, despite the circumstances, they're not that bad ... Next time, if possible, change by the end of June or early July.
Hello. You are advised to make a treatment with white cochineal plague tobacco. Can it be done with cigars or cigars, or does it have to be grass? In what proportion? And finally, I've bought larvae from black-haired grandmothers, because I've heard that they eat cochineals and... [+]