Ultra-Dimensional Technology Era

Under natural conditions, blast fungus only infects rice and is an epidemic disease spread by air currents.

Hu Guangyi thought strangely, logically speaking, the new varieties in the Qiongzhou experimental field have good disease resistance, and with the use of preventive pesticides, how could so many colonies be found in the straw tissue?

"Li Can, what is the level of Pyricularia oryzae in your samples?"

"Guangyi, do you have a lot of Pythium oryzae in your sample?" Li Can turned his head and asked.

Hu Guangyi nodded and replied: "My group of 12 samples had very serious Pyricularia oryzae outbreaks. According to the prevention and control standards in our experimental field, it is impossible for such a serious outbreak of Pyricularia oryzae to occur."

Then the test results of the other eight groups came out, and Hu Guangyi and Li Can frowned as they held the test sheets.

They tested a total of four new varieties in their experimental field this year, but none of the four varieties survived, and they were all infected with densely packed Pyricularia oryzae.

"Li Can, you lead people to conduct in-depth research on these Pyricularia oryzae, and I will report to Director Yuan."

"it is good."

Seeing Hu Guangyi's hurried back, Li Can quickly turned around and said, "Prepare for genetic testing."

He suspected that there was a mutated strain of Pythium oryzae, and the rapid genetic testing was carried out non-stop. Looking at the test results one by one, Li Can's heart sank.

Pyricularia oryzae can be divided into 7 groups and 128 physiological races.However, according to the results shown in the test sheet, these Pyricularia oryzae in front of me are not one of the 7 groups and 128 physiological races.

That is, it is a mutant variety.

"Try the compound fungicide of Rebis and Jiashoumi."

"Ok."

Half an hour later, the effect of Rebisi and Added Rice was not obvious. You must know that this compound fungicide has a control effect of more than 95% on the previous Pyricularia oryzae, and it is currently the first choice for the control of rice blast. potion.

Li Can's heart became more and more depressed, and he quickly ordered: "Try other fungicides."

"Currently preparing."

The effect of prothiamidazole solution was not obvious.

The compound fungicide of carbendazim and sulfur has a killing effect of about 40-60%. However, after the second generation of P. oryzae, the killing effect becomes less obvious.

The compound fungicide of tricyclazole and sulfur also has a certain killing effect on the first generation, but the effect plummets from the second generation onwards.

Even if several fungicides are used alternately, the mutant Pythium oryzae will develop drug resistance after three or four generations.

Mr. Yuan, who just arrived, saw the test reports and Li Can's disinfection test, and knew the seriousness of the matter.

He has contacted agricultural technology stations in various parts of Qiongzhou, and the problem is not just the experimental field of the research institute, but this situation is common in Qiongzhou.

"Guangyi, Li Can."

"director."

"Test all the fungicides on the market to see if any of them can suppress the outbreak of rice blast." Yuan Lao ordered solemnly.

"no problem."

Yuan Lao came to his office, opened the login program of Nanke Mengjie, and then quickly put on the brain wave glasses.

Nanke Dreamland - City of Truth.

Inside the Agricultural Research Institute.

He immediately summoned everyone from the Agricultural Research Institute and reported the matter to Huang Mingzhe.

……

Huang Mingzhe, who was at the research base of the Phoenix Project, immediately received a reminder from the ghost.

After taking out his mobile phone, he found that it was Yuan Lao's urgent report. After browsing through ten lines at a glance, Huang Mingzhe had already guessed the reason in his heart.

He immediately found an office, directly logged into Nanke Mengjie through the brain wave glasses, and came to the Agricultural Research Institute in the City of Truth.

At this time, there was already a lot of voices in the Agricultural Research Institute, and everyone was obviously aware of the seriousness of the matter.

We must know that rice occupies a very important proportion of Huaguo's grain. Huaguo's annual grain output is about 6.1 million tons, while the annual rice output is about 2 million tons, which accounts for 30%.

In addition, the current domestic grain self-sufficiency rate is between 80-85%. Once the rice harvest is completely wiped out, the domestic grain self-sufficiency rate will drop to between 50-60%.

Even if there is food reserves, this gap is very scary.

While listening to the discussion of several agricultural experts, Huang Mingzhe asked the ghost to investigate the rice situation in various parts of the country. At present, rice in the north and northeast has not been planted, and the investigation is mainly in the south of Lingnan and the southwest.

Sure enough, upon investigation, various degrees of rice blast appeared in various places.

Suddenly he turned his attention to Southeast Asia and Tianzhu, and asked the ghost to investigate the situation in these areas as well.

As tropical areas, rice planting in these areas is earlier than most areas in China, similar to Qiongzhou. If these areas are also infected with rice blast, it is estimated that they have entered the stage of a major outbreak.

Sure enough, as pieces of information were picked up by the ghost, the rice in the entire Southeast Asia and Tianzhu region suffered from very serious rice blast.

Huang Mingzhe reported the situation to Yuan Lao and other experts, and they frowned. The scale of the infection was really terrifying.

Once food exporting countries such as Southeast Asia and Tianzhu are seriously affected, coupled with the current international food prices, there will be problems in the whole of Asia, and they will be very serious problems.

However, the super drug resistance of the mutated Pythium oryzae made the experts helpless for a while.

Chapter 135 Rice Plague

Siam Bangkok.

More than a dozen local farmers are looking at the rice fields not far away with sad faces.

The rice, which should have been green and shiny, now has brown spots on the leaves and stalks, making it look sickly.

Several hired agricultural experts led people to inspect and sample the rice fields.

"Naihake, don't you use fungicides?" One of the middle-aged agricultural experts asked the leading farmer Hakeban.

Huckbanchai explained hastily while wiping his sweat: "Kunnai Badoki, we have already used the fungicide and slapped it three times."

Agricultural expert Baduo Qijun Ranara looked at Hakebancha in confusion, seeing that the other party did not seem to be lying, he then asked, "Bring over the pesticides you used."

"Okay." Huckbanchai turned his head and asked some farmers to get the pesticides.

After a while, two farmers came over with a large bag of pesticides, and there were several kinds of pesticides in it. Baduo Qijun Ranala picked up these pesticides and checked them, and found that there was nothing wrong with them.

strangeness!These medicines inhibit and kill rice blast. Since there is no problem with fungicides, why are fungicides ineffective?

After the sampling and inspection were completed, Baduo Qijun Ranara looked at the results and explained to the farmers: