Ladybirds are the family Coleopterae ( common name for rounded protruding beetles ) , small , brightly colored insects , often with red, black , or yellow spots.
Then, the seven-star ladybird is a predatory insect of the Coleoptera ladybird family, as a beneficial insect, adult insects can prey on wheat aphids, cotton aphids, locust aphids, peach aphids, mesozoites, ticks and other pests, which can greatly reduce the damage of trees, melon fruits and various crops from pests, known as "living pesticides", widely distributed throughout China.
Seven-star ladybug is a kind of ladybird, which is a more common insect when I was a child (especially when I was a child), and maybe now the city itself has fewer insects: It is difficult to see in all seasons.
Here's a look at the Seven Star Ladybird archives:
Seven-star ladybugs are also known as: golden turtles, new daughters-in-law, flower sisters (in southern China, commonly known as "flower sisters").
Seven-star ladybirds go through four different stages of development through their lives: eggs, larvae, pupae and adults.
Distribution area: Northeast China, North China, Central China, Northwest China, East China and Southwest China.
Adults and larvae feed on a variety of aphids, wood lice, etc. So it is a beneficial insect and should be protected.
After the seven-star ladybird is multiplied in large numbers, it can be placed in the field to help humans eliminate aphids and aphids.
What I want to say here is that the seven-star ladybug is a beneficial insect, and other ladybugs are not necessarily.
Types of ladybugs:
Beneficial insects: two-star ladybug, six-star ladybug, seven-star ladybug, twelve-star ladybug, thirteen-star ladybug, red star ladybug, big red ladybug, etc.;
Akahoshi gourd.
Pests: Eleven-star ladybug, twenty-eight-star ladybug
Eleven Star Ladybug.
Twenty-eight star ladybugs.
Beneficial insects, whether larvae or adult, can eat aphids. Ladybugs are insects that eat pests such as mesquiterpos and aphids.
However, it is interesting to note that:
There is also a wonderful habit between ladybugs: beneficial insects and pests are clearly demarcated, do not interfere with each other, do not intermarry with each other, and maintain their traditional habits, so that no matter how many generations are passed on, they will not produce "hybrids" or change their traditional habits.
Growth stages of the Seven-Star Ladybird:
The Seven-Star Ladybird has a strong ability to defend itself, although its body is only the size of a soybean, but many strong enemies are helpless against it.
1. It has a kind of "chemical weapon" on the joints of its 3 pairs of thin feet, and when it encounters enemy attacks, its foot joints can secrete a very unpleasant yellow liquid, so that the enemy can't stand it and retreat and flee in a hurry.
2. It also has a set of death skills, when encountering strong enemies and dangers, it immediately falls from the tree to the ground, shrinks 3 pairs of thin feet under the stomach, pretends to lie down, and survives without the enemy.
3. The seven-star ladybug that has just drilled out of the pupal shell remains motionless in the pupal shell. At this time, you can do an interesting experiment: suddenly push it down with your finger, scare it, after more than a day, the seven-star ladybird elytra gradually hardened, but the seven spots can never appear, becoming a "spotless" seven-star ladybug.
#七星瓢虫还是有机农业的象征!
Grow and reproduce
The seven-star ladybird goes through four different stages of development in its life: eggs, larvae, pupae and adults. Adults of the artificial rearing of seven-star ladybirds, the indoor temperature should be controlled between 20-25 ° C, the relative humidity is 70%-80%, the adult eggs require a higher temperature, can be raised at 25 ° C. However, it is better to raise the larvae at an average temperature of about 20 °C.
Snapping method
The wintering seven-star ladybug does not eat or move, as long as it is found, it is very convenient to catch, and it can be caught by hand. In other seasons, the seven-star ladybug is good at climbing and flying, and can use its fake death habit to quickly cover the branches inhabited by the seven-star ladybug with a plastic bag, shake it, and the seven-star ladybird immediately falls into the bag, and then, pull out the branch, tie the pocket, and take it back to the laboratory.
I'm here today, what knowledge will I introduce tomorrow??