Chapter 390: What's in the mud

March 12 is an annual tree planting festival, and Mobei Senior High School in Mobei City also has corresponding plant activities.
On this big morning, the part of the teachers and students who participated in the activity set off violently.
There are vast wasteland and sandy land in Mobei. The work of planting trees for afforestation, sand prevention and control, and ecological protection are carried out all the year round. Special attention is also paid to the tree planting festival. Therefore, there are more than 300 teachers and students in the first grade. The second grade students are the main students, and the third grade students only came to a few representatives of the student union officials.
"Students, planting trees is related to our future. Do n’t just plant trees on your mobile phone. You need to implement them in reality. Plant trees when you ’re free, and plant one tree at a time. Try to make our homes clearer and more forested. , The mountain is greener. "
The students stood on this remote and remote place away from the city, listening honestly to President Cui's words.
Li Yuhao is also listening, the second year of high school, this is the second time he felt the fear of being dominated by President Cui at the Arbor Day. Principal Cui is not the one with a big belly and a pesky annoyance. Because of his good temper, he usually welcomes everyone.
After a long time, just as everyone was drowsy this morning, Principal Cui finally gave up a few pages of manuscripts and started working with the teachers and the students.
This wasteland is not a desert, there are some solitary weeds, but it is also becoming sparse. The position of the digging pit for planting trees has been marked in advance by the staff of the Forestry Bureau, and the saplings are also placed next to them. They only need to dig out the soil with a shovel, plant the saplings in, and then fill the soil.
"Student, planting a tree is a kind of hope, and planting a tree is a kind of happiness." President Cui's middle-aged face is very serious. While walking among the people, he said, "Planting a tree is planting the future! These students, What are you waiting for? Hands on! "
All the people around laughed, and the headmaster named Li Yuhao. They were not lazy, they hadn't started yet.
"Principal Cui, don't you think you haven't finished it yet?" Li Yuhao pretended helplessly, and everyone laughed more.
Principal Cui was able to make such a joke, and took a shovel and passed it to the boy, "It's finished! Just dig, it's you."
In the smiles of Wang Jiawei, He Ziyi and others, Li Yuhao held this shovel as a new generation of motherland flowers, and he was well nourished since childhood. Although he was a sophomore, he had grown up to a height of 1.8 meters. There is playing basketball, so there is some strength to dig the ground.
When the shovel went down into the mud, Li Yuhao stepped on the head of the shovel to loosen the soil, so he shouted with excitement to dig up the mud.
It took a lot of effort, but it was not difficult!
"Fine, continue to dig." Principal Cui nodded in satisfaction, walked away and continued to inspect other students.
When Li Yuhao went down the second shovel, he felt a little wrong ... Somewhat uncomfortable in his heart, as if there was something in the mud ...
The third went down, and he saw from the mud puddle at his feet, "So, what is that ... bug?"
"Hey?" Wang Jiawei also saw that his eyes suddenly widened, and the girl He Ziyi was screaming loudly.
They saw that the dug pits were filled with dense, worm-like things, all of which were light yellow strips. They didn't move. They were full of mud.
"What's wrong?" Teacher Liang, the head teacher came over, and Principal Cui, who hadn't gone far, also turned back. Upon seeing this, both adults frowned, and the wasteland seemed to have problems. Principal Cui said: "This seems to be a locust egg ... Teacher Liang, tell Captain Luo to come over and see."
Principal Cui is from Mobei. He used to do farm work and knew a little bit, but Captain Luo is from the Forestry Bureau and is more professional.
"It's a lot of stuff." Principal Cui took the shovel and shoveled some mud out, and they were all worm eggs.
Several people looked at Li Yuhao, and more students came to watch.
Because of the effective control, locust disasters are no longer visible in many places, but the ecological environment in Mobei is complicated. There are a certain amount of locust occurrences every year. It can be said that locust disasters occur every year. News level.
Most of the students here have not been in contact with farmland, and have never been in contact with locusts. At this time, they were disgusted to see these eggs.
"I have intensive phobia ..." A girl with a disgusted murmur voice, though she was afraid, was still watching the excitement.
"I'm afraid." Principal Cui didn't have a good air. "We used to dig it out as a kid, and then grilled it and it smelled good."
There was a sudden disgust, but Li Yuhao felt a little strange feeling, eat it? The throat swallowed ...
At this time, Teacher Liang led Captain Lin back quickly, and Principal Cui gave way.
"Principal Cui, this is indeed a locust egg." Captain Luo recognized at a glance, "It should be the locust hairy."
"Well." Principal Cui had checked some information with his mobile phone, and took the opportunity to educate: "Students, the female locust's egg laying device can stretch into the soil twice as long as its body, and can lay 100 eggs at a time. At the time, there can be thousands of eggs per square meter, and each egg block counts 50 eggs, and there are hundreds of thousands of eggs per square meter, one square meter! Let them succeed in wintering, and two or three months later When it's unearthed in the summer, that's a big deal. "
Hundreds of thousands of locusts hatched in one square meter? The students listened in surprise.
"The situation is not that serious." Captain Luo smiled with a simple dark face. "Not every egg can become an adult, and the number of eggs is usually not that much. This kind of hairy horned locust, our average density of insects in recent years is also On average, there are 30 adults per square meter, and there are a lot of them per 100 square meters. "
"Yes, yes." Principal Cui nodded humbly. "Students, have you heard? There are two things about locusts and locust plagues."
"But if the area of ​​locusts is too large and there is no control, the low density of insects will also cause disasters." Captain Luo said, as if to talk to President Cui about crosstalk ~ EbookFREE.me ~ let the students laugh, The area where locusts occur in Mobei City is millions of acres in and around farmland. "
But this wasteland was okay a few years ago. Captain Luo took a shovel and dug some holes in the surrounding soil to check. Fortunately, there were no eggs.
It seems that Li Yuhao won the color with a spade, and the insect eggs are concentrated in those ten square meters, and the area is very small. However, due to this incident, the tree planting activity was suspended first. Captain Luo they need to call the people of the Agricultural Bureau to come over to do inspections, pesticides, etc. to do a good job of prevention and control.
"Captain Luo!" Li Yuhao chased up and asked a doubt in his heart: "How deep can the insect eggs hide in the soil?"
"It's on the shallow surface, less than half a meter." Captain Luo said, being very kind to the studious students.
"Oh ..." Li Yuhao heard it, but still had a weird feeling, the more he looked at the mud blocks where the eggs were dug out, the more so.
Looking around, a barren land ... Could there be a deeper location?
And the feeling of longing is a little stronger, which makes Li Yuhao swallow again.