The most common vegetable crop grows in every vegetable garden. We need onions at any time of the year for cooking, decorating the table. Rich in vitamins, a natural antioxidant that works against bacteria and viruses, but cannot overcome their worst enemy, the onion fly, whose larvae feast on the pulp of a vegetable, destroying the crop of this culture.
Females, attracted by the smell of onions and taking care of their offspring, lay eggs on the bulb itself or under lumps of earth near the head. After 3 days, the eggs turn into disgusting white worm-like larvae.
They are the main reason for spoiled crops. The larvae nasty imperceptibly - they bite into the onion and penetrate into the vegetable, where they find their favorite delicacy. They climb into the head through the bottom.
Having eaten their fill, the larvae leave their "dining room" and pupate in the soil. After 3 weeks, an adult emerges from the pupa, which again begins its life cycle.
During the season, the onion bed can be attacked by THREE generations of this malicious pest. Damaged onion heads become soft, rot, smell unpleasant and are not at all suitable for eating.
Pest Recognition and Control Measures
You can recognize the appearance of an onion fly by the appearance of the plant.
Plants, inside the heads of which a gang of larvae operates, noticeably lag behind in development. Their lower feathers turn yellow and become sticky, the green part looks drooping and fading.
If you notice such signs in the garden, then urgently start the fight against a dangerous criminal destroying your crop. First of all, remove diseased plants and sprinkle ash over the entire bed.
But there is such a magic remedy, which will forever save your site from this scourge. Effective infusion prepare for the attack as follows:
- Pour 10 liters of settled water into a bucket.
- Add to the water half a teaspoon of boric acid, which is a white crystalline powder.
- Add 3 drops of pharmaceutical iodine with a pipette.
- At the end, add 5 tablespoons of ammonia purchased from the pharmacy.
- Mix the contents well.
- In the evening, pour the solution over the beds.
Ammonia is ammonia. The peculiar smell repels most garden pests, including the onion fly. In addition, ammonia saturated with nitrogen enriches the soil with a useful component and reduces its acidity. This environmentally friendly product is as effective as chemical potent drugs. This composition can be used to process planting material before spring planting in the ground.
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