Dragonflies live near water sources
I think it's really interesting to call dragonflies "dragonfly", with the meaning of dragon as a dragon guarding treasure and princess, waiting for a handsome knight to come and kill, save the treasure and kidnap the princess. .. In fact, dragonflies are also treasure-keeping dragons.
Sometimes we see dragonflies perched peacefully on the banks of the water, as beautiful as a watercolor painting... But that's just our imagination, dragonflies are guarding the treasure which is the water surface they have conquered, and waiting for their princess to come. lay eggs. Any dragonfly that trespasses will be beaten to a pulp.
Dragons are considered the lords of the sky, dragonflies are also the lords in their own airspace. Dragonflies can fly upright in the air, take off like helicopters, change from straight flight to backward flight, turn right and left, increase and decrease altitude...
In the world of flying creatures, only flies dare to compare with dragonflies in terms of flexibility, of course they are far inferior in speed and endurance.
With such skillful flying and gliding skills, can we call dragonflies creatures of the air? But dragonflies prefer water more. As straw farmers, we must thank dragonflies for living near water:
First of all, the appearance of dragonflies lets us know that we are near a water source. Throughout their lives, they do not travel more than a few hundred meters around water.
Dragonflies spend more than 6 months living under water as nymphs. Therefore, the water source where dragonflies live is often a long-term stable water source.
Dragonfly nymphs can only live in clean, clear water. So when there are dragonflies, we have a natural quality control house and can be assured of the quality of the water.
Dragonflies are also one of the most combative insects, it is true that as carnivores they have to hunt, but dragonflies are not satisfied.
Not to mention the usual mosquitoes, which are their staple food, from their young they have practiced hunting small fish, tadpoles, growing up, they like to hunt cicadas, butterflies, and sometimes even praying mantises... Of course, other praying mantises also hunt them!
Dragonflies only lose to spider webs.
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Let's cherish dragonflies because they hunt mosquitoes
The species that hates dragonflies the most is definitely the mosquito: living near water, dragonflies have many opportunities to bully mosquitoes, because their home is also around there, dragonflies like to grab mosquitoes by the neck, the children of dragonflies also like to grab mosquitoes by the neck. children.
Some books say that dragonflies can hunt 50-100 mosquitoes a day.
(We can ask again: Why are there still many mosquitoes in gardens with many dragonflies? I think that's fairness, only we see mosquitoes as harmful, for many species, mosquitoes are an indispensable food source. Nature is very fair when it gives all species a chance to live, dragonflies hunt mosquitoes but the life cycle lasts for many months, mosquitoes only need a few weeks, enough to regenerate many new generations to maintain their species).
Dragonflies lay eggs when they dip their tails into the water, the eggs fall to the bottom of the water, or stick to rocks, plants, or underwater grass.
Therefore, water grass is very important for dragonflies: the roots are the place to keep unhatched eggs, the tops are where dragonflies perch to guard their territory, the body is the bridge connecting the two worlds of water and land, which is very necessary when nymphs leave the water to land. molt into dragonflies.
As a way to be friendly to dragonflies, we can let water grass grow. For new ponds dug or made of tarpaulin without grass growing, you can still attract dragonflies by releasing some duckweed, for example.
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