Chapter 392

March 12 is the annual tree planting day. There are also corresponding plant activities in Mobei high school.

In this morning, the part of the students and teachers who participated in the activities set out in high spirits.

There are vast wasteland and sandy land here in Mobei. Afforestation, construction of sand prevention and control and ecological protection work are carried out all year round, and special attention is paid to tree planting day. Therefore, there are more than 300 teachers and students, mainly senior one and senior two students, and only a few student union cadres represent senior three students.

"Students, afforestation is related to our future. We should not only plant trees on mobile phones, but also put them into practice. When we are free, we should plant trees one by one. We should strive to make our home water clearer, more lush and greener mountains."

The students stood on the remote wasteland far away from the urban area and listened to the words of headmaster Cui honestly.

Li Yuhao is also listening. This is the second time that he feels the fear of being dominated by President Cui on arbor day. Mr. Cui is not a potbellied and obnoxious one. Because of his good temper, he is very popular with all of us. He likes to speak big truth and is very fond of speaking big truth.

After a long time, just as everyone was drowsy in the morning, headmaster Cui finally said a few pages of paper and began to work with the teachers and students.

This piece of wasteland is not a desert, there are some isolated weeds, but also increasingly sparse. The location of digging trees has been marked in advance by the forestry bureau. The seedlings are placed beside them. They only need to dig out the soil with shovel, then plant the seedlings into the soil, and then fill the soil.

"Students, planting trees is a kind of hope, planting trees is a kind of happiness." Headmaster Cui's middle-aged face is very serious, while walking among the people, he said, "planting trees is planting the future! These students, what are you waiting for? Do it

Around a chuckle, the principal named Li Yuhao several people, they are not lazy, has not started.

"Headmaster Cui, don't you think you haven't finished yet?" Li Yuhao pretended to be helpless, and everyone's laughter was more happy.

president Choi can afford this kind of joke. He handed a shovel to the boy. "That's it!" Dig quickly, just you. "

in Wang Jiawei and He Ziyi's eyes, Li Yuhao held this spade, as a new generation of motherland flower, from childhood nutrition, although he has grown up tall, big and strong, 1.8 meter tall, usually playing basketball, so dig out the strength is.

spade went to shovel in the mud. Li Yuhao loosened the soil with his foot on the spade head and began to shout and dig up the shovel soil.

A lot of effort, but no difficulty!

"Well, keep digging." Headmaster Cui nodded with satisfaction and walked away to continue to inspect other students.

When Li Yuhao went down the second shovel, he felt something was wrong Some inexplicable uneasiness in my heart, as if there is something in the soil

The third spade went down, and he saw it from the mud pit at his feet Worms? "

"Ah?" Wang Jiawei also saw that her eyes suddenly widened, and he Ziyi, the girl, was a loud exclamation.

They saw that the dredged mud pit was full of dense insect egg like things. They were all light yellow strips, which could not move and were full of mud.

"What's the matter?" The head teacher, Mr. Liang, came over. The headmaster Cui, who had not gone far away, also turned back. On seeing this, both adults frowned. There seemed to be something wrong with the wasteland. Headmaster Cui said, "it's like locust eggs Mr. Liang, please ask captain Luo to come and have a look

Headmaster 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 are a lot of them." Mr. Choi took a shovel and shovel some mud out of it.

Li Yuhao several people look around, more students around to come.

Because of the strong governance, many places have no locust disaster. However, the ecology of Mobei is complex, and there is a certain amount of locust occurrence area every year. It can be said that locust disaster occurs every year. However, due to the prevention and control of many departments, it will not develop into a News level.

Most of the students here have never been exposed to farmland, so they have not been exposed to locusts. At this time, they are disgusted at the eggs.

"I'm a phobia intensive..." A girl made a disgusting voice, although she was afraid, she was still watching the excitement.

"What are you afraid of?" Headmaster Cui did not have a good airway, "we used to dig it out when we were children, and then we baked it to eat, but it was fragrant."

All of a sudden a burst of disgust, but Li Yuhao slightly strange feeling, eat? My throat is swallowing

At this time, Mr. Liang came back quickly with Captain Lin, and headmaster Cui made way for his position.

"Headmaster Cui, this is really a locust egg." Luo captain a look to recognize, "should be hair foot stick horn locust."

"Well." Headmaster Cui checked some information with his mobile phone, and took the opportunity to educate him: "students, the ovipositor of a female locust can stretch twice as long as its body when it plunges into the soil, and can lay 100 eggs at a time. During the locust disaster, there are thousands of eggs per square meter, 50 eggs per egg block, and there are hundreds of thousands of eggs per square meter, one square meter! Let them survive the winter successfully. In another two or three months, when it comes to summer, it will be a big deal. "Hundreds of thousands of locusts hatch in a square meter? The students were listening.

"It's not that serious." Luo captain's simple dark face a smile, "not every egg can grow and hatch, and usually the number of eggs is not so much. In recent years, the average population density of this kind of grasshopper is 30 adults per square meter, and there are more than 100 adults per square meter

"Yes, yes." Headmaster Cui nodded modestly, "students, do you hear that there are locusts and plague of locusts are two things."

"But if the area of locust occurrence is too large and there is no control, low population density will also cause locust disaster." Captain Luo also said, as if to talk to headmaster Cui Xiangsheng, let the students laugh, "the area of our Mobei City, including farmland and farmland surrounding, every year there are millions of acres."

, but there was no problem in the wasteland for a few years. Captain Luo, who shovel the holes around the surrounding area, checked out what was good.

It seems that Li Yuhao has won the prize with a spade. The eggs are concentrated in about ten square meters, and the area is very small. However, because of this situation, the tree planting activity was suspended first. Captain Luo needs to ask the people from the Agricultural Bureau to come over to do soil inspection, pesticide application, etc., and do a good job in prevention and control.

"Captain Luo!" Li Yuhao chased up and asked a question in his heart: "how deep can insect eggs hide in the soil?"

"Very shallow, less than half a meter." Luo said that he is very kind to studious students.

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

Looking around, a piece of barren land Will there be a deeper position?

And that kind of yearning feeling, more intense, this let Li Yuhao swallow saliva again.

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