Why salt water can drive away small bugs on vegetables

In fact, the effect of salted water washing vegetables is average, but it has a certain effect on the pesticide participation on the vegetables.

There are generally no adult worms on vegetables, but eggs, which are much more resistant than adults, and sometimes boiling for ten minutes may not necessarily kill the eggs, let alone just wash them.

This is the principle of osmosis and reverse osmosis in physics (or physical chemistry). There are certain electrolytes in living organisms to maintain the balance of the fluid circulation of living organisms. And no matter what kind of organism, it is made up of a large number of cells.

The cell itself is a semi-permeable membrane, and when the concentration of external electrolytes is high in the semi-permeable membrane, the internal water penetrates outward; When the concentration of electrolytes inside is high, the outside permeates the water to the inside. Pickled pickles use the principle of reverse osmosis, which infiltrates the water of vegetables outward and electrolytes inward.

When the saline comes into contact with the small insects, the salt penetrates inward, and the water in the cells in the small insects penetrates outward, eventually causing dehydration and death.

Hello, often remove weeds, reduce the living environment of insects, but also use greenhouse technology to close for 3-5 days, so that high temperature to kill the source of insects, car hunger can be prevented and controlled with pesticides. The main insect pests of limb cabbage are cabbage moths and aphids, which eat mesophyll or suck leaf juice, and finally cause the leaves to dry up and shrink, which will cause death to cabbage. Strengthen cultivation management.

The land should be leveled, the drainage and irrigation system is good, to prevent water accumulation in the field for a long time after rain and irrigation, planting should be carried out on sunny days, and the compost must be used when fertilizing, and disease-resistant varieties must be selected. Remove the diseased plants, destroy them in a centralized manner outside the field, and sprinkle lime around the holes to prevent the spread of germs.

How to quickly wash off the insects in the vegetables:

Prepare a basin of water and add the right amount of salt to the water.

Then soak the insect leaves in salt water, let them sit for a few minutes, and then they can be fished out when the insects float out.

Then soak the vegetable leaves in a clean water bar and wash them, and put them in clean water to rinse off the dirt.

How to wash the pesticides in the vegetables:

Baking soda instant edible alkali: Put an appropriate amount of baking soda in clean water and soak for about 10 minutes. Then, rinse with water 2 to 3 times.

Rice water: Do not pour the rice water, the rice water contains a variety of nutrients, and the decontamination ability is very strong. Usually, the second rice washing water is weakly alkaline, which has an obvious effect on cleaning off pesticide residues.

Vinegar: Vinegar has many functions, not only for flavoring, sterilization, decontamination, but also for effective removal of toxins such as pesticide residues.

Water: Rinse with water for a few minutes, then soak in water for about 15 minutes, but not too long. After soaking, wash it again with water, and you can basically eat it with confidence.

After buying vegetables, let them sit for a while before eating: the residual toxic substances in vegetables and fruits will slowly decompose into non-toxic substances over time. After buying groceries, let them go for a few days before eating, and the poison will drop a lot. However, for fruits and vegetables that cannot be stored for too long, it is better to wash them in other ways.

The concentration of saline is greater than that of the worm cells, so dehydration occurs.