How could they not know such a big thing as the emperor's leaving the palace?

And now the Emperor didn't even change his clothes. If he wasn't a fool, he would know where the emperor went to brother Zhang Feng.

However, at the thought of this, on the way to the imperial study, several people squatted on the road teeth and thought over what brother Zhang Feng had said before. Only then did they think of this wonderful method.

This is what brother Zhang Feng said before. Isn't it the right time to use it?

But after saying it, the people felt bursts of strangeness.

Because the emperor's face at this time has become very ugly. This scene can't help but make these old oil men feel a thump in their hearts.

Is this what the emperor and brother Zhang Feng said?

Several people could not help looking at each other. At the same time, they sat up and waited for the emperor's instructions.

Sure enough, not long after the people sat down, Li Shimin sighed and said, "originally, I thought you would come up with a different opinion on this matter, but now it seems that this... Alas!"

"Emperor, there are other ways. I consulted the previous methods applicable to the control of locusts, but compared with the current situation, they are basically a drop in the bucket, so I think the best way now is to use fire!"

"All right, all right!"

Li Shimin waved his hand with a headache.

"Where do you want me to burn? The imperial city? Or where?"

"Emperor, Minister... Capital punishment!"

Wei Zheng and others quickly knelt down.

Li Shimin looked at them.

Waving his hand, he said, "in fact, I know you also understand that when I come back from the tavern, I won't turn a corner. Brother Zhang Feng does have three ways!"

"One is what you call fire attack!"

"Take advantage of the favorable terrain, according to the current situation!"

After Li Shimin finished, pointing to the map on the wall and the scope of Chang'an City, he said, "look, here is the section of Shilipo. Brother Zhang Feng means to cut a fire belt between Bahe and Chang'an, and then set fire to locusts here!"

"This..."

Wei Zheng and others looked at the map and listened to Li Shimin's words.

Before, they only wanted to set fire, but they really didn't know how to set fire, especially in the imperial city and Chang'an city?

But just then, Li Shimin said again, "I didn't expect that you couldn't even think of another way!"

Li Shimin had some mixed feelings in his heart and said faintly, "have you all dealt with medicinal materials? The Dragon Boat Festival has just passed. Have you forgotten one thing?"

"You mean wormwood and realgar?"

When Wei Zheng heard the speech, he suddenly changed his look and hurriedly knelt down and said, "I did think of it before, but I don't know how to use it, so I'm stupid. Please make it clear to the emperor!"

"Please make it clear!"

Li Shimin waved his hand.

"Do you remember what the beacon tower is for?"

"Beacon fire..."

Wei Zheng heard the speech and hurriedly said, "back to the emperor, the beacon tower is a signal tower for transmitting emergency military!"

"Yes!"

"That's it!"

Li Shimin pointed to the map and said, "I just looked at the playing table. On all the playing tables, the places where locusts occur are concentrated in Longyou, Jiannan and the west, mainly around Tubo and other countries!"

"If we light the beacon fire in these places at the same time, and still replace all the fuel with medicinal materials, insect killing and insect killing medicinal materials, in cooperation with the fire zone, what will happen?"

A burst of fine awn burst out in Fang Xuanling's eyes.

"The emperor, what do you mean, with such a fire attack?"

"That's right!"

Hum -!

Fang Xuanling, Du Ruhui, and Chang sun Wuji, who had been silent, heard a burst of thunder in his mind at the same time as Wei Zheng.

Yes!

Jiannan Road, Shannan road and Longyou road are the three places where the locust plague is the most serious. Then there are thousands of beacon towers in these places. If the beacon towers and isolation belt in so many places set off that kind of medicine at the same time, then

Isn't it really easy to kill this locust?

Is it really that simple?

But at this time, Chang sun Wuji, who had never spoken, suddenly said: "emperor, although this method can eliminate most locusts, if the dosage is improper and if the wind blows indiscriminately, the effect..."

"So, I mean, if we can cooperate with the chicken and duck army at this time, wouldn't we be able to do half the work?"

When they heard the speech, they couldn't help but rejoice.

"Emperor, what the eldest Sun said is that if those locusts that are not dead are destroyed together with the army of chickens and ducks, the locusts in our Datang will be extinct in March!"

"Three months..."

Li Shimin shook his head lightly.

"I can't wait three months!"

"I want you to wait within one month and completely exterminate this plague of locusts!"