The mention of leeks will remind people of "poisonous leeks", reminiscent of leeks that use A mixed phosphorus (3911) to irrigate the roots, consumers in the market to see leeks with too thick green leaves do not dare to buy, because everyone has heard that the leeks that use A mixed phosphorus to irrigate the roots not only prevent and control underground pests, but also promote growth.
So, are leeks really watered with A mixed phosphorus, can the leeks on the market be eaten with confidence, and some people consult, now buy leeks, how to choose leeks that have not used pesticides?
The main reason why the hat of the poisonous leek is difficult to take off is because the leek has had such an unforgettable experience.
< h1 class = "pgc-h-arrow-right" > the formation of "poisonous leeks"</h1>
As we all know, leeks generally do not have too large diseases and insect pests, it is reasonable to say that rarely use pesticides, but leeks have a deadly natural enemy, that is, maggots, growers call leek maggots, for the larvae of the late-eyed mushroom mosquito, often accumulated in the leek underground bulbs and young stems.
In particular, the leeks grown in the anti-seasonal greenhouses, the humidity and temperature are suitable for the harm of leeks, and the growers often take the mode of watering and irrigation in the management process, which makes the humidity in the shed more large, forming a vicious circle for the prevention and control of leeks.
Compared with the degree of harm caused by leek insect pests grown in anti-seasonal greenhouses, the harm of open-air leek maggots is correspondingly much lighter.
The use of the so-called 3911 methyl phosphorus irrigation root, it has a good anti-effect on leek maggots, but with the increase in the resistance of leek maggot larvae, the normal dose is difficult to achieve the control effect, the most direct way to solve this problem is to increase the amount of medication.
Therefore, this is also a few years ago frequent outbreaks of eating poisonous leeks and led to poisoning phenomenon, including the author is also a victim, because ate a plate of leek stuffed dumplings in the restaurant, there were symptoms of poisoning, and was sent to the hospital for emergency treatment, since then, scared for many years dare not eat leeks.
In the countryside, there is also a legend that the use of phosphorus mixed with leeks, not only to prevent maggots, because the phosphorus mixture contains phosphorus elements, while there is a phosphorus supplement to the leeks, can make the leek leaves look more dense green, however, this matter has now been proved to be a misleading, phosphorus in the phosphorus in the mixture and phosphorus in the fertilizer compared, is not a level at all, want to supplement phosphorus element, potassium dihydrogen phosphate is not fragrant?
Therefore, the leeks sold on the current market, the leaf color is thick green or yellow-green, and the use of phosphorus has nothing to do with the use of phosphorus, and related to the characteristics of the variety, can be eaten with confidence.
<h1 class= "pgc-h-arrow-right" > the fate of the highly toxic pesticide methion</h1>
With the increase in the country's ban on high-toxic pesticides, as well as the advent of high-efficiency, low-toxicity and low-residue pesticides, the hat of poisonous leeks seems to be able to be taken off, but why people still have not let down their guard against leeks, the author believes that it is mainly related to the lack of sufficient awareness of leek cultivation by consumers.
Everyone remembers the poisonous leeks that poisoned people in the first place, but they did not find that this phenomenon had not happened for many years.
As a highly toxic pesticide, methic phosphorus has been banned from being sold and used in China since October 1, 2020, and its production has been prohibited since October 1, 2023, and as early as 2002, it has been banned as a highly toxic pesticide in vegetables, fruit trees, tea and Chinese herbal medicines.
Nowadays, the pesticide used to control leek maggots, methyl phosphorus has long been out of flavor (poor effect, high toxicity), and more efficient, low toxicity, low residue, and excellent control effect on leeks, nicotine pesticides have occupied the mainstream of the market.
At present, in the cash crop planting area of the agricultural materials store, has not seen the shadow of the pesticide methyl phosphorus, the vegetable wholesale market has also increased the detection of pesticide residues, in the high toxicity and low energy of phosphorus, as well as the punitive force of the market supervision environment, who will try the law by example?
<h1 class= "pgc-h-arrow-right" > how to eat leeks with confidence</h1>
Consumers have always believed that the most direct way to test whether vegetables have pesticides is to see whether there are insect eyes on the leaves (traces after being harmed by pests), harmful insects are harmful to the traces of vegetables, naturally there is no spray pesticide, you can buy with confidence, in fact, this is a misleading, friends who have some understanding of vegetable planting may understand that the reason why vegetables have insect eyes does not mean that pesticides are not sprayed, or it may be that pesticides are sprayed without the expected control effect, but pesticide residues are possible.
Of course, although leeks are vegetables, compared with other leafy vegetables, there will be no pests that harm the leaves, so this method is more inaccessible in the choice of leeks, and the color of leeks is related to the variety, so whether leeks use pesticides in excess, which cannot be identified by the naked eye.
For the identification of whether the leeks have been sprayed with pesticides, it has lost the value of reference through appearance, but some suggestions are still necessary to share with everyone, but where the purchase of anti-seasonal greenhouse leeks, buy home as far as possible with water or alkaline water soaked for several hours and then eat, and the normal season of open-air leeks, it is much safer.