Every year, many gardeners are faced withthat the onion feather turns yellow. If time does not take action, you can go completely without a crop. This is especially alarming for people who grow onions in large quantities for sale. To choose a way to get rid of this scourge, it is necessary to determine why the onion feather turns yellow. Incorrectly chosen method will not help save the crop, much of which may die.
So why does the onion feather turn yellow?There are three main reasons for this. Two of them are related to the work of pests. We are talking about the onion covertly and the onion fly. How to determine who exactly spoils the bow? It is necessary to carefully examine the damaged plants.
Steamer larvae eat inside onionfeathers are long longitudinal strokes, similar to whitish stripes. And adults eats holes around which white spots appear as the sheet dries. As a result of the activity of these pests, the tips of the onion feathers turn yellow, the feather itself twists and dries out. Winter beetles can spend in untidy onions or topsoil. Therefore, it is recommended to destroy the remnants of onions. If possible, transfer onion crops to 200-300 meters every year so that the beetle does not get to them. If the onion has already suffered from the pest, cut the feathers, leaving only 3-4 cm. Loosen the soil more often, including between the rows.
Why does yellow feather onions?The reason may be an onion fly. Garlic can also be affected by it. If the onions are populated with larvae, it will begin to turn yellow and fade early. At the same time, the onion fly also damages the bulbs, which then rot, and the plant is easily pulled out of the ground. As we can see, the signs of damage by a pest are different from the previous ones, so it is possible to diagnose which ones will have to be eliminated. In this case, we can recommend early sowing of onions, destruction of plants that are already damaged, deep plowing. Sow the onions next to the carrots, with their smell the plants will keep the pests away from each other. Do not leave in place plant residues. You can sprinkle the beds with onions, ash, dust or tobacco dust. Based on national experience, it is advisable to water the onion with saline solution (1 cup per bucket of water) three times, with an interval of 20 days.
Why does yellow onion feather if signspest damage is not? The most common cause is nitrogen deficiency. Abundant rains can lead to the fact that nitrogen compounds will go along with the water into the lower layers of the soil, from where they can not get the onion roots. Therefore, it is recommended to feed onions with nitrogen fertilizers.
Now we know enough to determinethe correct reason why the onion feather turns yellow. If there are no beetle larvae in the feathers and there are flies in the bulbs, it is worthwhile to fertilize the beds with nitrogen-containing fertilizers. And do not forget that by the end of July, yellowing of feathers is associated with the process of natural aging of the plant. If the onions began to turn yellow only during this period, it is not necessary to take any measures. The main thing is to recognize adverse signs in time and establish the reason for their appearance so that the harvest will succeed.
