2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
Onions and garlic have many common enemies among parasites and pathogens. The plantings spoiled by them cause a lot of trouble, and besides, they additionally infect the soil. Let's remember what "ill-wishers" can harm the future harvest and how a gardener can deal with them
Onions and carrots are a great couple
Onion stem nematode is perhaps the most formidable exterminator of onion and garlic plantings. If you allow its appearance in the soil, then it is not advised to grow onion crops for five years in this area. This microscopic white worm can overwinter both in the soil and in the bulbs themselves and even the seeds. Moreover, in the waste of onions and garlic, in dried onions and scales, the infection can continue to live from two to five years. By the way, this should not be forgotten when onion peels are used to prepare nutritious infusions for feeding other plants.
How to recognize a nematode infestation? First of all, it affects the bottom. When the pest is actively multiplying, the bottom cracks. The leaves on these plants wither and wither. They cannot be left in the beds. Diseased bulbs are dug up and burned away from the garden. The fight against the nematode should begin at the stage of preparation for planting. For this, the seedlings and chives are treated with hot water.
Another parasite that causes gardeners a lot of anxiety is the onion fly, or rather its larvae. They penetrate directly into the bulb, and it is very difficult to fight them. To scare away this pest, it is recommended to soak the seed in a solution of any inexpensive anthelmintic before planting. Then, after planting the onions in the beds, they are re-treated with such a solution with watering the garden. This eliminates both the onion fly and the lurker.
Another effective way to scare off onion flies from the beds during the egg-laying period is to sprinkle a mixture of lime and tobacco dust along the plantings. Joint planting of crops that the insect does not like helps to fight the pest. In particular, these include carrots.
To make the onion fly less annoying, experienced gardeners carry out winter planting of onion crops. It is noticed that such plants that have grown stronger during the winter period are often too tough for voracious larvae.
Hydrogen peroxide and ammonia are useful in the garden
This year, spring has saddened us several times with unexpected cold snaps and even frosts. As a result of such bad weather, onions and garlic begin to freeze slightly, and then the feathers turn yellow. You can correct the situation with the help of anti-stress drugs. But you can use a more budgetary option - hydrogen peroxide solution. To do this, take 2 tables for 1 liter of water. spoons of liquid and spray onion crops with this composition over the feather.
An unhealthy type of planting can cause nitrogen deficiency in the soil. Therefore, it is recommended to carry out top dressing in the spring. This can be urea or nettle-based herbal infusion. They start feeding no earlier than the temperature outside the window is higher than +10 degrees C.
Also, feeding is performed with a solution of ammonia. To do this, take 2 tables. tablespoons of the product for 10 liters of water. In addition to the nutritional effect, such a composition cleans the beds from onion flies and lurking proboscis. Re-processing is performed after 10 days.
Downy mildew is among the diseases dangerous to onion crops. You can fight this ailment by spraying with 1% Bordeaux liquid. These activities need to be repeated once a week and a half. But be sure to stop them three weeks before the harvest. As a preventive measure against downy mildew, planting material is recommended to be warmed up before planting in the beds.
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