The battle situation underground is unknown for the time being, so Meng Qingxiao paid attention to the situation on the ground, the main head snake bead of the Baqi Great Snake has been transported, I don't know if it will work, I need to take it over to test.

The more than 30 fighters who died underground before, everyone had a tacit understanding, and no one mentioned it.

The vitality and fecundity of the black locust are super strong, and it has the "reputation" of "one tree a year, one nest every two years, and one slope every three years", but who would have thought that now this reputation has become a disaster for Tianluo City.

Tianluo Castle is very interesting, the whole city is not built in the direction of due north and south, but extends and lengthens from northwest to southeast according to the topography here.

The roads here are also almost always sloping, either from northwest to southeast or northeast to southwest.

But there is only one building that is very positive, and that is its 4 gates, which are open due west, east, south, and north, so you can't see the road before entering the city, you can only see the buildings, and if you are far away, you will think that you can enter someone else's house just after entering the city gate.

This time it was led by Zhang Ying personally, Meng Qingxiao only brought the kitten, and Wan Jiyan continued to take people to pay attention to the situation on the side of Jiaolong and the queen ant.

The three of them entered through the west gate, turned a little to the right, and they could see a large number of small saplings, and it was now May, which was the time for the black locust to bloom with long leaves.

"These little saplings grew from the roots of that mutant black locust." Zhang Ying introduced to Meng Qingxiao, "But they won't move, they are normal trees, only the main tree will move, so as long as you can find a way to kill the main tree, Tianluo City will be safe." ”

"Also, there's a reward for killing the main tree." Zhang Ying suddenly smiled mysteriously.

"What reward?"

"Acacia flowers, countless acacia flowers all over the mountains, so that you can't eat them all in a year."

"Oh, it's time for the locust tree to bloom. I said how could there be a clear smell in the air, and I thought I had just come out of the tunnel and smelled everything. ”

"It's a psychological effect, you can smell it now, the nose is too smart, the tree that can bloom locust flowers is still far from here."

"Really, I really smell it, it's a fragrant acacia flower."

"Well, your nose is so good, I don't smell it."

Meng Qingxiao suddenly stopped and asked, "Since it's still far away, shouldn't we drive there?" ”

"The car is in front, just follow me."

As the two walked, Zhang Ying introduced the situation here, and she continued: "We have observed through surveillance that the area where the black locust is located in the whole city is the safest at present, and the dragon will not come here, and the ants will not come here, so we have moved some of the facilities that are afraid of rain here." ”

"Be careful, animals have a much stronger sense of danger than us humans, and since they don't dare to come, it means that there must be danger here."

"Well, we'll be on our guard."

The two of them walked through a row of buildings, and soon came to the front of a large shopping mall, where there was originally a glass door, but the glass was long gone, and the ground was also cleaned by the soldiers of the technical team.

Three large trucks and a small car were parked in front of the mall, and inside the mall were stacked with a lot of equipment from the technical team.

"Where did the car come from?"

"I found it in an underground parking garage near the big locust tree, and it was entangled in the roots, so we cleaned it up and found that it was still open."

"The black locust didn't attack you?"

"No, maybe it was sleeping, and it started to go berserk when we cut one of its very large roots."

The two got into a car, driven by Zhang Ying, and drove southeast for about 20 minutes before finally arriving, along the way they saw countless black locust trees, and there were many black locust trees that had bloomed.

This tree was originally just an ornamental plant planted by ordinary people in their own yards, but they didn't expect it to grow wildly after mutation, and soon occupied the entire yard, if it had been disposed of earlier, it would not have caused a disaster, but unfortunately all the people in Tianluo City fled and let this plant grow.

It was just a tree, and in just three years, it had turned five neighborhoods into a forest, a forest made up entirely of black locusts.

Seeing the forest in the city almost shocked Meng Qingxiao's jaw, and after they got out of the car, they saw bursts of birds and flowers, a large number of bees shuttling among the flowers, and there seemed to be many small animals infested in the woods.

"Damn, awesome!" Meng Qingxiao was sincerely admired.

For the cleaning of mutant trees, or governance, the Qianghan Kingdom has advanced experience, which benefits from the vast land area of the Qianghan Kingdom.

As the saying goes, when the forest is big, there are all kinds of birds, there is more land, and any plant will be encountered, and the Qiang Han Kingdom has encountered countless mutated plants, some are dangerous, those who are not dangerous, those who will take the initiative to attack their prey, those who will not take the initiative to attack but will set traps, and all kinds of mutated plants are available.

Scientists have found that the mutations in these plants are all caused by pheromones.

Some of their body structures have undergone animalized mutations catalyzed by pheromones, giving rise to animal brains and various organs.

Their brains are usually well protected between the roots and trunk, while the heart is further down and is also surrounded by roots.

They mutate into several roots that move freely like animal limbs to act as arms, and some are so powerful that they can even move tree trunks.

But it is impossible to make all the branches and leaves move, their nervous systems are not so strong yet, of course, they are already stronger than humans and other animals, just trying to command all the branches and leaves is not enough.

Mutated plants tend to be aggressive, because they already know how to think, and the desire to be strong is the nature of all living things, the inevitable result of nature's survival of the fittest.

The most straightforward way to deal with mutant plants is to destroy their brains, with the result that the tree itself does not die, but all of its animalized organs gradually deactivate, and eventually decay into nutrients that are then absorbed by its own roots.

However, as mentioned above, its brain is located between the taproot system and the body of the tree, and it is the thickest position on its body, and it is very closely protected by it, and it is almost impossible to destroy the brain directly.

So they had to think of something else.

"It's okay to attack its heart, it's relatively weakly defended." Zhang Ying introduced to Meng Qingxiao, "But it is not an animal after all, even if the heart is removed, it will not die, but it will suffer for a while, and then it will grow another heart after a while." ”

"So, we're not going to destroy its heart." Zhang Ying smiled, "We inject it with a strong sedative, its heart and brain have a very thick blood vessel connected, as long as the sedative is injected into the heart, it will soon fall into a coma, then we will hurry up to clear the obstacles and attack its brain." ”

"I'm just a little curious, why did you borrow that snake bead, what is it for?"

Meng Qingxiao explained: "The saliva spewed out of the main snake head of the Baqi Giant Snake can inhibit the growth of all things, and after expert research, it was found that the abilities of each of its snake heads are all provided by the beads that grow from the skull of the snake head. ”

"And then?"

"This bead in the main head is very domineering, it has very strong radioactivity, even if people get close to it without protection, they will have symptoms of heart failure, and if you use it to get close to the mutant plant, the mutant plant will tremble all over and lose the ability to move."

"Oh, well, with it, don't we need to be sedated?"

"No, the sedative still needs to be injected, and the process you just said is the same." Meng Qingxiao said, "The weaker the lifeform, the more harmful it is, and the more powerful the lifeform, the less harmful, like a mutant plant like the mutant black locust, the effect it can play is probably very small, I just want to use it to suppress the aggressiveness of the black locust a little, so that we can quickly reach its heart." ”

"Okay."

Led by Zhang Ying, they entered the woods, these black locusts in the woods are ordinary trees, and they will not attack people, and because of the existence of the mutant black locust inside, any other mutated creatures dare not approach here, but it is quite safe here, this is probably the so-called dark under the light?

After walking about two kilometers inside, they were still in the woods, but they saw a subway station, and there were two soldiers guarding the entrance of the subway station, they were the soldiers of the company sent by the 1st Division.

Zhang Ying pointed to the northwest and said, "That mutant black locust is in that direction, and it has to walk another two kilometers from here, but it is very manic now, and it is difficult to approach now." ”

Meng Qingxiao was curious: "What kind of manic method?" ”

"It has a lot of roots distributed on the surface, and those roots are moving, and all the targets that can move within three hundred meters of it, it will attack wildly."

"Does it have eyes?"

"No, I didn't find it, it shouldn't rely on the eyes to see."

"Okay, let's go underground." Meng Qingxiao resisted the curiosity to take a closer look and followed Zhang Ying down the subway station.

Robinia is a very sun-loving plant, and does not grow underground due to the lack of sunlight, but its exposed roots can be seen in various corners and crevices of buildings.

The two saw more soldiers on the platform, and two soldiers came over quickly to greet them, and gave them a military salute and said, "Hello two chiefs." ”

"Company Commander Wang, is the excavation work going well?" Zhang Ying asked.

"Fortunately, it took some time to assemble the machine in the early stage, and the excavation went smoothly, and there are no obstacles yet." This Wang Company Commander is in his 30s, dark and thin, only 170 centimeters, but he looks very energetic.

"Where's that box from China?" Meng Qingxiao asked.

"It's still there, everyone remembers your reminder and doesn't dare to open it."

"Radiation protection clothing is also equipped, right?"

"Well, six sets have been prepared."

Zhang Ying said: "Six sets are enough, not too many people can't go over, otherwise there will be danger, the more people there are, the more dangerous it is." ”