Although these weeds grow on Mount 50, the grass seeds are likely to be carried by the strong wind and fall into the territory that humans have managed to clean up, and take root and sprout in the next rain, grow rapidly, and seize the living space.

Grass is the most hated evolutionary plant of Xia Qing after the great evolution of Blue Star creatures.

After the rain ends, the elements in the atmosphere decrease, the growth rate of the grass slows down, and the normal plants that have not been robbed of the growth space by the grass continue to grow, but the plants that are swallowed by the grass will become weak because they cannot get sunlight and compete for nutrients in the soil.

After the great evolution of organisms, herbivores failed to evolve an iron stomach and were unwilling to eat the grass with a very high content of the elements. If the grass is allowed to grow wildly, most of the plants in the Blue Star will become extinct because of it, and the biological chain on the Blue Star will be broken.

After discovering the harm of weed, Huaguo gathered a top domestic research team and spent three years researching a relatively safe inhibitor of weed, named it as the herbaceous enemy.

After the grass absorbs the grass, the seed rate of Xiu Sui will drop to less than 10% of the original, which curbs the rapid spread of the grass.

The reason why it is said to be "relatively safe" is because if the herb enemy is sprayed on crops, it will increase the probability of crop evolution.

Even if it is used in the evolutionary forest, it is necessary to control the concentration of the herbaceous enemy: if the concentration is low, it will be ineffective for the grass, and if the concentration is high, it will have an adverse effect on other plants in the evolutionary forest.

What's even more troubling is that weeds are constantly evolving, and researchers have to work around the clock to improve the quality of their enemies. Xia Qing's news is closed, and he doesn't know if it is Dao Gao or Mo Gao now.

Hills 50 and 49 are close to the territory where crops are grown, so planes or drones cannot be sent to spray weeds. Therefore, Xia Qing lived in the territory for half a year and experienced three rains, and he could only rely on manpower to eliminate the weeds.

In addition to using the grass enemy to reduce the reproduction rate of the grass, the base also released a long-term task of collecting the grass spikes, collecting the grass ears and handing them over to the government affairs hall, you can exchange points by catties, which is one of the ways for many low-level ordinary people to exchange for rations.

Xia Qing's team is now collecting grass ears either to exchange points, or to solve hidden dangers.

Passing through the periphery of the Evolutionary Forest and entering the dense woods, the density of the grass dropped significantly, and the Xia Qing team no longer collected grass ears, speeding up their travel.

In the depths of the Evolution Forest, it seems to be another world.

In corners where the sun doesn't shine, colorful fungi and bryophytes grow. These seemingly weak plants are deadly killers.

Before the popularization of protective clothing, more than 100 million people died from the paraspores of fungi or mosses.

People covered in moss and fungi will become skeletal and have an eerie complexion when they are about to die, very similar to the post-apocalyptic zombies depicted in the movie.

Therefore, many people call natural disasters the last days, which belong to the last days of mankind. It was a nightmare that the surviving humans couldn't get out of at midnight. A few years before the natural disaster, Xia Qing woke up several times in a dream that his body was covered with moss.

Walking in such a dense forest, even if he was wearing a third-level protective suit, even if he was protected by Jing Kuan and Hu Zifeng in the middle, Xia Qing still breathed lightly and raised twelve points of vigilance.

An hour later, Xia Qing proposed to exchange places, "Team Hu, I'll go ahead." ”

She is not a protected logistics team member today, she is also the main force, she can't always be in the protected position, she has to exchange positions with other team members and open the way.

Xia Qing, who was at the front, held a sharp long knife in each hand while walking, clearing all kinds of obstacles, and if he couldn't clear it, he would take a detour.

"There's a purple glowing moss twenty meters ahead, let's go around it from the left."

"Roger." Hu Zifeng and Jing Kuan responded at the same time, following Xia Qing to the left and detouring.

After carefully avoiding the glowing moss and walking forward for another thirty minutes, Xia Qing stopped, "There are traces of large animals passing three meters ahead, and the footprints should be bears." ”

"I'll see." Hu Zifeng stepped forward to inspect the big footprints on the soft soil, "It's a bear, judging by the size, depth and stride length of the footprints, it is more than three and a half meters tall and weighs more than one ton." ”

Jing Kuan clenched the gun in his hand, "Evolution Bear." ”

"Yes." Hu Zifeng took a deep breath, "Looking at the direction of the footprints is different from ours, it shouldn't be touched." Keep moving? ”

"Go on." Xia Qing held the double knives and continued to open the way.

At half past nine in the morning, the team reached the halfway point of the second peak of No. 50 Mountain, and according to the characteristics described by Huzi, they found two evolved green light pine trees more than 40 meters high.

When he saw these two pine trees, Xia Qing just wanted to say: Good guy!

Qi Fu said that this year is the year of pine trees and pine towers, and the pine trees in the three districts of No. 49 Mountain have not grown many pine towers, so Xia Qing believed Qi Fu's judgment.

But seeing these two big pine trees full of pine towers, she couldn't help but doubt Qi Fu's judgment: If this is still a small year, how much longer does a big year have to be?

They underestimated these two pine trees, and there were too few people to take them all out today. Xia Qing discussed with his teammates, "Let's collect the left one first?" ”

Hu Zifeng and Jing Kuan both agreed, and they were also very excited.

Hu Zifeng confirmed to Xia Qing, "Huzi said that the pine nuts on these two trees contain about three thousandths of the element, and they taste very good?" ”

"Yes, he said it was better than the one on Hill Forty-Nine." Xia Qing replied.

The previous garrison of Huzi's unit was in the col on the west side of No. 49 Mountain, and the large pine trees of the Long Pine Tower were very conspicuous. So before opening up the territory, the edible pine nuts in the nearby mountains were collected by them.

"Let's go out and beat pine nuts, which can be used to exchange high-quality potions with Zhang San." Jing Kuan grinned, "You can also ask Er Yong to make pine nut corn for us to eat." ”

"Pine nut corn is my share, I am not short of medicine now, you exchange it with the third brother, and I will not mix it." Xia Qing spoke, carefully observing the evolutionary cross-billed magpie that was nesting in the big pine tree.

The bird's two beaks are crossed left and right, so it's no wonder it's named. I just don't know if they evolved to be like this, or if they were like this before they evolved.

After Xia Qing observed, he discussed the way to collect the pine tower, "I see not only the claws, but also the beak of this bird. Team Hu, let's go up the tree together? ”

Hu Zifeng nodded, "Rest in place for half an hour, and then go up the tree together, two people are responsible for protection, and one person beats the pine tower." ”

Half an hour after trimming in situ and observing the evolution of the cross-billed magpie. Xia Qing made a new discovery, "The speed of their flight is not too fast, so there shouldn't be much of a problem." ”

Jing Kuan silently responded in his heart: If the danger of collecting the pine tower here is too high, Huzi will not propose to team up with you.

The three of them came to the foot of a big tree that was more than two hugs thick, put on their feet and began to climb the tree.

After the hook of the foot tie hooked the trunk of the tree, Xia Qing knew that this was also a hardness evolution tree, and discussed with his teammates, "The hardness of this tree has evolved, and it needs to be cut with a sickle." You two defend, I'll cut the pine tower, let's cut from the bottom up, stop when you reach a place where you can't stand on a high place, and use a slingshot instead. ”

(End of chapter)