When growing from seed we recommend our Optimum Seed treatment, when growing from sets it is possible to use Optimum Bulb during planting. When the leaves are big enough we recommend to follow up with Optimum Leaf for the very best results. We know that onions & shallots that are treated with Optimum will grow bigger and uniformer. But very interesting is that they will produce more dry matter, which is very important for storage and peeling.
We have also noticed that onions treated with Optimum can be harvested earlier which makes it especially interesting for area's where the growing season is short.
In most cases farmers will stop spraying conventional disease treatments when they have started working with Optimum Leaf. A big step towards sustainable agriculture without compromising on yield, quality and profit.