Growing onions is not a difficult task, but unforeseen circumstances, such as pests, can interfere.
To know how to fight, you need to have an idea of the insect pests that each crop has its own. As for onions, you need to know everything about the onion fly and larvae.
Onion fly
This is a real disaster that winters in the ground and already at the end of spring its adult individuals begin to fly. The female leaves a clutch on the neck of the bulb, and a week later the larvae attack the bulb. This is indicated by wilting and drying greenery.
You can fight it by carefully cultivating the soil and loosening it, fighting weeds and diseased plants. Experienced gardeners also sow onions next to carrot beds and sprinkle the soil with a mixture of tobacco dust and lime during the egg-laying period. Wood ash or sand with mothballs are also used.
If there are worms in the feathers
The yellowish larvae are the offspring of the beetle, which also overwinters in the beds. The larvae gnaw into the stems, which leads to the death of the plants. Up to 10 larvae can live in one bulb.
You need to fight with the same means as with a fly, but add soap and ash. Ash (200 g) is poured with hot water (10 l).
Let it sit for a day, then add 50 grams of laundry soap. The solution is used for spraying.
In addition to pests, neck rot plagues onions.
This mainly concerns the onion harvest. But both the planting material and the soil can be infected. But if you just pay attention, the disease can be noticed during storage - the bulbs become soft and watery. Then, dampness promotes the spread of the disease.
For preventive purposes, seeds are treated with copper oxychloride or 1% Bordeaux mixture.