In early spring, when the first color appears in the gardens, onion flies begin their ominous flight. By the name of these insects, it is not difficult to guess which plants they cause damage to.
If you do not want to remain without a harvest of onions, then you just need to know how to deal with the larvae (worms) of these pests.
Onion fly is an insect laying eggs orOn beds with a bow, or in the aisle, or in the neck of the bulbs themselves. Within about a week, larvae appear from the eggs, which in turn are taken inside the bulbs and eat them from the inside. Onion flies themselves are small (up to seven millimeters), the larvae reach about one centimeter in length.
Methods of combating the onion fly larvae (worms)
The fight against these pests must beginEven when the onion is planted. First of all, the seeds (bulbs) need to be treated with a weak solution of potassium permanganate (prepare the solution and soak the onion for 30 minutes in it). After planting the onion seed beds, pollinate ash (a glass of ash per square meter). If you do not have ash, then you can replace it with sand or dry humus, mixed with a small amount of naphthalene. It is worth remembering that onion flies do not tolerate a sharp odor, so to discourage them in the inter-row can be decomposed tomato tops, wormwood, or millennia. It is useful to spray the beds with the infusion of these same herbs.
If the above procedures were not conducted and the onions were attacked by the larvae, then the following should be done:
- Spray the plants with a specially prepared solution (pour four pounds of tomato leaves into a bucket of water, boil, add a little laundry soap) -
- in a bucket of warm water to dissolve about 300 grams of salt and water the beds. Repeat the procedure after 10-12 days.
It is worth noting that the last method of getting rid of larvae is very effective, but it does not influence the soil in the best way.