Plague Doctor

March 12 is the annual Arbor Day, and Mobei Senior High School in Mobei City also has corresponding plant activities.

In this early morning, the teachers and students who participated in the activity set off in a hurry.

There are vast wastelands and sandy lands in Mobei. Afforestation, desertification prevention and control, and ecological protection work are carried out all year round. We also attach great importance to Arbor Day. Therefore, there are more than 300 teachers and students, including senior high school students and senior high school students. There were mainly high school sophomores, and only a few student union cadre representatives came from the senior high school students.

"Students, afforestation is related to our future. Don't just plant trees on your mobile phone. We must implement it in reality. Plant trees when you have time. Plant one tree after another, and strive to make our homes clearer, with clearer water and lusher forests. , the mountains are greener.”

The students stood on this remote wasteland far away from the urban area and listened to Principal Cui's words honestly.

Li Yuhao was also listening. As a sophomore, this was the second time he felt the fear of being dominated by Principal Cui on Arbor Day. Principal Cui is not the pot-bellied or annoying type. Because he has a good temper, he is usually quite popular with everyone. He just loves to speak great truths. He loves to speak great truths.

After a long time, just as everyone was drowsy in this early morning, Principal Cui finally finished speaking on a few pages and started working with the teachers and students.

This wasteland is not yet a desert. There are some isolated weeds growing there, but they are becoming increasingly sparse. The location where the hole is to be dug for tree planting has been marked in advance by Forestry Bureau personnel, and the saplings have been placed nearby. They only need to dig out the soil with a shovel, plant the saplings in, and then fill it with soil.

"Students, planting trees is planting hope, planting trees is planting happiness." Principal Cui, with a very serious middle-aged face, walked among the people while talking, "Planting trees is planting future! These students, What are you waiting for? Take action!"

The people around them chuckled. The ones named by the principal were Li Yuhao and the others. They weren't trying to be lazy, they just hadn't started yet.

"Principal Cui, don't you think you haven't finished speaking yet?" Li Yuhao pretended to be helpless, and everyone laughed even more happily.

Principal Cui could afford to make such a joke, so he took a shovel and passed it to the boy, "That's it! Dig quickly, just you."

In the smiling eyes of Wang Jiawei, He Ziyi and others, Li Yuhao held this shovel. As a flower of the new generation of the motherland, he had good nutrition since he was a child. Although he was a sophomore in high school, he had grown tall and tall, 1.8 meters tall. He was usually I play basketball, so I have the energy to dig.

The shovel was shoveled into the mud. Li Yuhao stepped on the shovel head to loosen the soil, and then shouted with encouragement to dig up the shovel.

It took a lot of effort, but it was not difficult!

"Okay, keep digging." Principal Cui nodded with satisfaction, walked away and continued to inspect other students.

When Li Yuhao went down with the shovel for the second time, he felt something was wrong... He felt a little uneasy for no reason, as if there was something in the soil...

When the third shovel went down, he saw it from the mud puddle at his feet, "Then, what is that... bug?"

"Huh?" Wang Jiawei also saw it, his eyes suddenly widened, and the girl He Ziyi even screamed loudly.

They saw that the dug pit was filled with dense insect egg-like things, all of which were light yellow strips that did not move and were buried in the mud.

"What's wrong?" Teacher Liang, the head teacher, came over, and Principal Cui, who had not gone far over there, also turned back. When they saw this situation, the two adults frowned. There seemed to be something wrong with this wasteland. Principal Cui said: "These seem to be locust eggs... Teacher Liang, please call Captain Luo and the others to come over and take a look."

Principal Cui is from Mobei. He has done farm work before and knows a little bit, but Captain Luo is from the Forestry Bureau and is more professional.

"There's a lot of stuff here." Principal Cui took the shovel and personally shoveled some mud out, but it was also full of insect eggs.

Li Yuhao and the others looked around, and more students gathered around to watch.

Because of effective governance, locust plagues are no longer seen in many places. However, the ecology here in Mobei is complex, and there is a certain amount of locust occurrence area every year. It can be said that locust plagues occur every year, but due to the prevention and control of multiple departments, they generally do not develop into a serious disease. News level.

Most of the students here have never been in contact with farmland, so they have never been in contact with locusts. At this time, they felt sick looking at these eggs.

"I have trypophobia..." A girl made a disgusted sound. Although she was scared, she was still watching the excitement.

"What are you afraid of?" Principal Cui said angrily, "We dug it out when we were young and roasted it and ate it. It was so delicious."

There was a sudden sound of disgust from everyone, but Li Yuhao felt a little strange. Eat it? My throat swallowed...

At this time, Teacher Liang and Captain Lin came back quickly, and Principal Cui made way.

"Principal Cui, these are indeed locust eggs." Captain Luo recognized them at a glance, "They should be hairy-legged club-horned locusts."

"Yes." Principal Cui had already checked some information on his mobile phone and took the opportunity to teach: "Students, the female locust's ovipositor can extend twice as long as its body when pierced into the soil, and can lay 100 eggs at a time. There is a locust plague. At that time, there could be thousands of egg masses per square meter. Counting 50 eggs per egg mass, there were hundreds of thousands of eggs per square meter, one square meter! Let them survive the winter successfully and in two or three months When it is unearthed in the summer, it will be a big deal.”

Hundreds of thousands of locusts hatch in one square meter? The students were all stunned.

"The situation is not that serious." Captain Luo's simple and dark face smiled, "Not every insect egg can grow and hatch, and the number of eggs is usually not that many. This kind of hairy-footed club-horned locust has a normal population density in recent years. That is to say, there are an average of 30 adults per square meter, and 100 adults per square meter.

That's a lot. "

"Yes, yes." Principal Cui nodded humbly, "Students, did you hear that there are two different things between locusts and a locust plague?"

"But if the area where locusts occur is too large and there is no control, low insect population density will also cause locust plagues." Captain Luo added, as if he was telling Principal Cui a cross talk, making the students laugh, "The area where locusts occur in our Mobei City , including farmland and farmland surroundings, there are millions of acres of it every year.”

But there had been no problems in this wasteland in the past few years. Captain Luo and the others took a shovel and dug some holes in the surrounding ground to check, but fortunately there were no egg masses.

It seemed that Li Yuhao had won the lottery with a shovel. The eggs were concentrated in that dozen square meters, which was a very small area. However, due to this situation, the tree planting activity was temporarily suspended. Captain Luo and the others needed to call people from the Agriculture Bureau to do soil inspection, apply pesticides, etc., and do a good job in prevention and control.

"Captain Luo!" Li Yuhao chased after him and asked a question in his heart: "How deep can insect eggs be hidden in the soil?"

"It's very shallow, less than half a meter." Captain Luo said, he was very kind to the studious students.

"Oh..." After hearing this, Li Yuhao still felt a strange feeling. The more he looked at the mud where the insect eggs had been dug out, the more so.

Looking around, there is a deserted land... is there something deeper?

And the feeling of longing became a little stronger, which made Li Yuhao swallow again.

Love the Plague Doctor.