Hand in hand, one step, two steps, three steps, four steps, looking at the sky.
Look at the stars, two by two, three by four, connected in a line.
stop! Today we are not talking about stars, but ladybugs.
The season of seven-star ladybird infestation is generally in early summer, that is, when the wheat is about to ripen, because this is also the time when aphids are crazy.
Seven-star ladybird (beneficial insect)
Since childhood, we have known from chinese textbooks that the seven-star ladybird is a good friend of the crops and a beneficial insect. At that time, seeing the Seven-Star Ladybird in the field was not willing to hurt it.
Gradually, however, I discovered that these ladybugs had not only 7 stars, but also 2 stars, 6 stars, 12 stars, 13 stars, and even 28 stars.
Akahoshi gourd (beneficial insect)
At that time, whenever I encountered a ladybug, I would count the points on its body, but I didn't know who was good and who was bad.
Ladybugs in China there are about 100 species, generally speaking, are relatively small, the body is about 1 cm or less, they are semi-circular, color and markings are diverse, most of them are red, yellow, black and other colors, and there are black, red, yellow, white and other color spots, some have no spots at all.
Thirteen-star ladybird (beneficial insect)
They are relatively small in courage, and as long as there is a little wind and grass, they will fall off the leaves of the plant and pretend to die. When the wheat is harvested, because the wheat is harvested, they have no shelter, they fly everywhere, and sometimes they burrow into your neck.
They moved very quickly, grabbed one, and before they could take a closer look, it flew away with its wings outstretched, leaving a small pool of yellow liquid that smelled bad.
Eleven Star Ladybird (pest)
Twenty-eight Star Ladybirds (pests)
How to distinguish between good and bad ladybugs. Scientists have given the answer. Common ladybugs are 2 star ladybugs, 6 star ladybugs, 7 star ladybugs, 12 star ladybugs, 13 star ladybugs, big red ladybirds, red star ladybirds, etc. are beneficial insects. Only 11 star ladybirds and 28 star ladybirds are pests. Pest ladybirds nibble on crops, causing yield losses, especially potatoes.
There is also a simple identification method, that is, all the surface of the elytra, born very delicate, especially smooth, shiny and shiny, belongs to the beneficial insects. Anyone with dense fine fluff on the elytra is a pest. Just like the 28-star ladybug in the picture below, it has hairs on its body.
Later, when you see a ladybug, count it, and if he is 11 stars and 28 stars, don't hesitate to kill it.