What fruit tree doesn t grow insects without spraying?

1. Yacon.

Yacon, like sweet potatoes and potatoes, grows in the soil and cannot be attacked by insects. This is also the self-protection mechanism that root plants have formed over a long period of evolution.

2. Walnuts. The walnut flesh is protected by a hard shell on the outside, and there is a thick skin on the outside of the shell, so the insects can't eat at all. Some people may say that chestnuts not only have hard shells, but also thorns?

Why aren't chestnuts? Friends who are familiar with chestnuts should know that when chestnuts are almost ripe, the appearance will crack, and when they are not ripe, the shell is soft, so insects are easy to attack.

3. Early ripening peaches. Peaches are very susceptible to worms. Because, it is so delicious, the bugs have been eyeing it for a long time. However, if it is an early-maturing variety and matures in May, the insects have not grown up and cannot be eaten, so there is no need to use pesticides.

Fourth, apricots. Apricots are the first fruit to hit the market in the summer. Due to early maturation, there is also less infestation from insects.

5. Cherries. Cherries ripen in late April, earlier than apricots. In general, there is no need to inject medicine.

Although these fruits have fewer insect pests, it is not excluded that other producers are artificially added during the planting process or preservatives are added during transportation, so more attention should be paid to the selection process.

Hello, the first one is yacon, which is a delicious fruit. Like tomatoes, yacon can be eaten as it can be eaten or used in cooking. Many people eat pear fruits and like to stir-fry meat with yacon, cook hot pot, pork ribs, etc.

Not only can yacon be cooked, but it can also be used to make snacks such as preserved fruits, jellies, and canned food, which is a versatile food. The yacon leaves and petals can be used to make tea, while its stems can be used as fodder. Yacon is different from common fruits in that it grows mainly in the soil, just like peanuts and potatoes.

Therefore, the insect cannot eat fruit at all, so it does not destroy the growth of the fruit and naturally does not need pesticides.

The second type is walnuts, and we often hear commercials on TV saying, "Always drink six walnuts with your brain". Walnut milk is mainly made from walnuts. Walnuts have high nutritional value and are known as the world-famous "four dried fruits" along with almonds, cashews and hazelnuts.

It is rich in protein and fat, and also contains many essential trace elements and minerals such as calcium, phosphorus, and iron, which are beneficial for human health. Many people don't know that walnuts grow in. In fact, walnuts mainly grow on trees, but because the shell of walnuts is too hard for insects to get in, walnuts do not need pesticides, and they can grow healthily.

It's impossible, the fruit is for the worm to eat, and then spread the seed to a distant land.

Hope, thank you.

If this kind of fruit tree, in my memory, this kind of fig is not better, few people have applied medicine, and I have never seen him grow insects.

As far as I know, fig trees don't need to be sprayed, and they don't have bugs, except for Fig, which told me, some other fruit trees seem to have bugs.

In my cognition, it seems that there is no, because all fruit trees will bear fruit, and the fruit is sweet, so it will attract insects, even if it is a fruit tree like figs, which is difficult to produce insects, it will also attract ants during the fruiting period, and it is inevitable that this is.

1. Fruit trees can be sprayed in sunny and windless weather, and the appropriate time is 8-10 am or 4-6 pm.

2. It is not advisable to spray at noon, because the light at noon is strong and the temperature is high, the pests will hide in the backlight, and the amount of activity will be reduced, and the high temperature will also cause the effect to be decomposed.

2. Precautions for spraying fruit trees.

1. Especially for apple trees at the seedling stage.

When spraying, try to use less or no Bordeaux liquid.

pesticides, which are conducive to reducing the incidence of fruit rust.

2. Fruit trees are more prone to aphids and red spiders.

and other insect pests, the back of the leaf needs to be evenly sprayed when spraying.

Summary. 1. Temperature: pests and diseases are more active in 20-30 hours, high temperature in summer, spraying before 10 o'clock in the morning or after 4 o'clock in the afternoon; When the temperature is low in spring and autumn, the medicine is sprayed at noon.

2. Fruit tree growth: before the fruit tree blooms, the fruit preservation drug is used to improve the fruit setting rate and increase the yield of the fruit tree; One week after flowering, it is necessary to inject pesticides to prevent pests and diseases to reduce the possibility of pests and diseases; During the period when the fruit is enlarged, you can spray it once, which can make the fruit pedicle thicker and increase the amount of nutrient transport.

When to apply pesticides to prevent and control the insects in the fruit.

It is necessary to apply medicine when the fruit tree germinates so that there are no insects.

1. Temperature: pests and diseases are more active in 20-30 hours, high temperature in summer, before 10 o'clock in the morning or 4 o'clock in the afternoon, spraying next to the mu; When the temperature is low in spring and autumn, the medicine is sprayed at noon. 2. Fruit tree growth

Before the fruit tree blooms, the fruit preservation medicine is used to improve the fruit setting rate and increase the yield of the fruit tree; After flowering, it is necessary to inject pesticides to prevent pests and diseases around the bend of the tomb to reduce the possibility of pests and diseases; During the period when the fruit is enlarged, you can spray it once, which can make the fruit pedicle thicker and increase the amount of nutrient transport.

Before flowering, before the fruit tree blooms, it is necessary to take fruit preservation medicine, which can improve the probability of fruit setting, increase the yield of fruit trees, and reduce the chance of fruit drop. The type of agent can be a growth regulator, which can regulate the growth of the fruit, the main ones are gibberellin, naphthalene acetic acid, etc., and the concentration does not need to be too high. In addition to the use of growth regulators, it is also necessary to supplement trace elements, the most important of which is boron, which can effectively promote the germination of pollen, help to complete fertilization, and can also be mixed with sugar.

2. After the flowers fall, in the 7-10 days after the flowers wither, it is necessary to inject a pesticide to prevent pests and diseases to reduce pests and diseases.

Fruit trees can be sprayed in sunny and windless weather, and it is not advisable to spray at noon, because the light at noon is strong, the temperature is high, the pests will hide in the backlight, and the amount of activity will be reduced, and the high temperature will also cause the effect to be decomposed, in addition, due to the rapid volatilization of the effect at noon, it is easy to cause poisoning of humans and animals.