Insect photography for the elderly

In life, we will see all kinds of insects. At present, there are more than 6,543,800 species known to mankind.

Speaking of insects, many people may think of some harmful insects. In fact, some insects are beneficial and harmless to the human body. Next, Bian Xiao will introduce six kinds to you.

In life, we will see all kinds of insects. At present, there are more than 6,543,800 species known to mankind.

Speaking of insects, many people may think of some harmful insects. In fact, some insects are beneficial and harmless to the human body. Next, Bian Xiao will introduce six kinds to you.

Six kinds of insects beneficial and harmless to human body

Dragonfly 1

Dragonfly larvae can prey on swallows (mosquito larvae) in water, while adults generally fly in ponds or rivers to prey on flying insects, which are the most common beneficial insects except mosquitoes, flies and other harmful insects.

2, bees

Bees are one of the insect groups that are beneficial to human beings, because in order to get food, bees collect honey during the day and brew honey at night, and at the same time they have to complete the task of pollinating fruit trees all the time. They are important pollinators for crops. They pollinate crops, fruit trees, vegetables, grasses, camellia oleifera crops and traditional Chinese medicine plants, and the yield can be increased by several to twenty times.

According to American reports, the effect of bee pollination on onion yield is very obvious.

At the same time, honey is a commonly used tonic and has the reputation of "milk for the elderly". Royal jelly is a kind of advanced nutrition, which can not only enhance physical fitness and prolong life, but also treat chronic diseases such as neurasthenia and anemia.

3. ladybugs

The life of ladybug larvae is very monotonous, swimming between flowers and plants every day, madly preying on aphids. Adults will prey on any young insect, and aphids are their favorite food. People often collect swarms of ladybugs and sell them to farmers and gardeners to control aphids, mites and other pests.

4. Chrysopa

Chrysopa is a predatory insect, belonging to Insecta Neuroptera. It can effectively prey on many important agricultural pests, such as Chrysopa, Chrysopa, etc., and can still eat more than 100 aphids on average a day. Therefore, people have widely carried out the work of killing pests by using Chrysopa.

5, silkworm

Silkworm is one of the insects that have made the greatest contribution to human beings for a long time. As the main raw material source of silk, silk plays an important role in human economic life and cultural history.

According to legend, as early as 3,000 years ago, Lei Zu, the wife of the Yellow Emperor, began to "raise silkworms and get silk".

Silkworm worms and pupae are edible and have the function of diet therapy.

6. dung beetles

Dung beetles feed on animal feces, which can exceed their own weight within 24 hours, which can accelerate the process of transforming feces into substances that other organisms can use. It is known as the "scavenger of nature" and is beneficial to human beings.

The original species of dung beetles in Australia only like to eat small particles of feces, such as kangaroo feces, and do not like foreign cattle and sheep feces. 1965- 1985 The Commonwealth Scientific and Industrial Research Organization of Australia launched the dung beetle project in Australia, which successfully introduced 23 species of dung beetles from all over the world and improved the pastures in Australia.

In rural areas, insects are very common, especially on crops, and they will do some harm to crops. However, the above small series introduces six kinds of insects that are beneficial and harmless to the human body and can even kill pests.