Dragonflies live near the water and prey on small flying insects such as mosquitoes to avoid biting people and animals and spreading diseases. ?
2. swallow it?
Although many birds eat insects and peck at human crops, swallows are different. It carries auspicious signs to catch pests in the sky. If a swallow enters the owner's house to build a nest, it will be a very happy thing.
3. Frog?
Frogs are small experts at catching pests. It lives in a small ditch near crops and often goes to the fields to catch pests. People call it a good helper to protect crops.
4. Owl?
Owls are nocturnal birds, which can kill voles, protect crops and ensure a good harvest. An average of 1000 voles can be captured in a summer.
5. Little bee?
Bees are the most industrious animals. Worker bees in the bee colony can collect pollen to make honey, help some plants pollinate and increase the yield of many crops. Honey, beeswax and royal jelly have great economic value.
6. Woodpecker?
Woodpeckers are doctors in the forest. You can take moths out of the trunk and eat thousands of pests every day.
7. Earthworms?
Earthworms are very common beneficial insects. They live in the soil, drill holes everywhere in the soil, loosen the solid soil and let more air and water penetrate into the soil. In addition, earthworm dung is a very good fertilizer, which protects the robust growth of crops.
8.bats
Although a bat looks like a flying squirrel, what it does is definitely not as annoying as a mouse stealing things everywhere. Bats mainly feed on mosquitoes, noctuids, scarabs, nuns and other pests, and can prey on more than 3,000 in one night, which is very beneficial to human crops. In addition, bat manure is also a very good fertilizer and is very useful for agricultural production.
9.ladybug
Ladybug septempunctata is a well-known beneficial insect. Adults can prey on wheat aphids, cotton aphids, peach aphids, ticks and other pests, greatly reducing the pests suffered by many fruits, crops and trees.
10, mantis
Mantis is an important natural enemy of agricultural pests. In ancient Greece, people regarded mantis as a prophet, because its forearms bulged like a praying girl, so mantis was also called a praying insect.