Plague Doctor

March 12 is the annual tree planting festival, and the Desert North High School in Desert North City has corresponding plant activities.

This morning, the part of the students and teachers involved in the event set off in a blaze.

There are vast wasteland and sandy land in the desert north. The afforestation, sand control and ecological protection work is carried out throughout the year, and special attention is paid to tree-planting festivals. Therefore, there are more than 300 teachers and students, mainly senior and senior students, and only a few senior students come to represent the cadres of student councils.

“Classmates, afforestation is about our future. Don't just plant trees on mobile phones. To be realistic, plant trees whenever you have time. Plant one. Try to make our home water clearer, lush and greener. ”

The students stood in this remote and wasteland far from the city and listened honestly to what Principal Choi had said.

Li Yuhao was also listening, the High School Party, which was the second time he felt fear of being dominated by Principal Choi at Tree Planting Festival. Principal Choi is not the one with big stomach stools and annoying, because he has a good temper and is usually quite popular, he is just a big reason person, very big reason person.

After a long time, while the public was sleeping in a coma this morning, Principal Choi finally said on a few pages that he and the teachers started working with the students.

This wasteland is not yet a desert, with some lonely weeds, but it is also getting thinner. The location of the pit trees has been marked in advance by FDA personnel, and the seedlings have been placed next to them. All they need to do is dig out the soil with a shovel, plant the seedlings in, and fill the soil.

“Class, planting trees is hope, planting trees is happiness.” Principal Choi's middle-aged face was very serious. He walked among the people and said, “Planting trees is the future! Guys, what are you waiting for? Do it! ”

The people around him laughed lightly. The headmaster named Li Yuhao a few people. None of them wanted to be lazy. They just haven't started yet.

“Principal Choi, didn't you think you were finished?” Li Yuhao was helpless, and everyone laughed more happily.

Principal Choi could make such a joke. He took a shovel and passed it on to the boy. "That's it! Dig, just you. ”

In the laughter of Wang Jiawei, He Ziyi and others, Li Yuhao grabbed this shovel. As a new generation of flowers in his country, he was well nourished since childhood. Although he was a sophomore, he had grown tall and was 1 meter and 8 tall. He usually played basketball again, so he had the strength to dig the ground.

As the shovel went down into the mud, Li Yuhao stepped on the shovel head and loosened the pine soil, screaming vigorously to dig up the shovel.

A lot of effort, but no difficulty!

“Okay, keep digging.” Principal Choi nodded satisfied and walked away to continue visiting the other students.

When Li Yuhao's second shovel went down, it felt a little strange... I felt a little uncomfortable in my heart, as if there was something in the dirt...

The third shovel went down, and he saw it in the mud pit beside his foot, “So, what's that... bugs? ”

“Hey?” Wang Jiawei also saw, his eyes suddenly widened. He Ziyi's girl was even more shocked.

They saw nothing but loose mud pits filled with dense, numb worm eggs, all a pale yellow strip, motionless, and buried in mud.

“What's the matter?” Teacher Liang walked over and Principal Choi, who was not far away, turned back. As soon as they saw this situation, both adults frowned. This wasteland seemed to be in trouble, Principal Choi said: “It looks like locust eggs... Teacher Liang, call Captain Luo to see them. ”

Principal Choi is from Apostolic North. He has worked in agriculture before. He understands a little, but Captain Luo is from the Forestry Bureau and is more professional.

“That's a lot of stuff.” Principal Choi took the shovel and herself shoveled some mud, which was also full of worm eggs.

Li Yuhao watched several people, more students watched.

Because of strong governance, locusts are no longer visible in many places, but the ecological complexity of the north side of the desert, with a certain amount of locust area occurring each year, can be said to occur annually, although due to multisectoral control, it does not generally develop into a news level.

Most of the students here have never touched farmland, nor have they touched locusts, and watching these eggs is disgusting.

“I have a dense phobia...” A girl makes a disgusting, unholy voice, even though she is afraid, but still watches the noise.

“Afraid of what?” Principal Choi didn't have a good airway, "we used to dig it up when we were kids and then bake it, it smelled good. ”

Everyone suddenly resented it, but Li Yuhao felt a little strange. Did you eat it? Throat swallowed...

At this time, Teacher Liang walked back with Captain Lin, and Principal Choi gave way to his position.

“Principal Choi, this is indeed a locust egg.” Captain Ross recognized it at first glance, "should be a barefoot horn locust. ”

“Mm-hmm.” Principal Choi has checked his cell phone for information, taking the opportunity to educate him: "Classmates, the female locust spawning apparatus can reach twice as long as its body and lay 100 eggs at a time. In a locust disaster, there are thousands of eggs per square meter, 50 eggs per square meter, and hundreds of thousands of bug eggs per square meter! Let them succeed in the winter and come out in the summer in two or three months, and that's a big deal. ”

Hundreds of thousands of locusts hatched in a square meter? Students heard chatter.

“The situation is not that serious.” Captain Luo's pale, dark face smiled, "Not every egg can grow and hatch, and usually the number of eggs is not that large. These barefoot horn locusts, we've had an average insect mouth density of 30 head per square adult in recent years, and a lot per square 100 head. ”

“Right, right.” Principal Choi nodded in vain, "classmates, did you hear that locusts and locust plagues are the same thing. ”

“However, if the locusts are too large and unprotected, low insect mouth density can also cause locust infestation.” Captain Luo added, as if to speak with Principal Choi, to make the students laugh, "The area of our desert north city, counting the farmland and the surrounding farmland, is millions of acres each year. ”

But this wasteland has not had any problems in previous years, Captain Luo, and they dug some holes in the surrounding area with shovels, and luckily there were no eggs.

Li Yuhao seems to have won the colors. The eggs are concentrated over a dozen square meters and the area is very small. However, because of this situation, the tree-planting activities were suspended, Captain Luo, and they needed to call the Agriculture Bureau to do soil tests, pesticides, etc. and do the prevention and control work.

“Captain Luo!” Li Yuhao chased him up and asked a question in his heart: “How deep can bug eggs hide in the earth? ”

“Very shallow, less than half a meter.” Captain Ross said it was kind of a good idea for good students.

“Oh...” Li Yuhao listened, but still had a strange feeling. The more he looked at the mud that had been dug out of the worm eggs, the more so.

Looking around, a barren land... would there be a deeper place too?

And that desire became a little stronger, which made Li Yuhao swallow again.