三级aa视频在线观看-三级国产-三级国产精品一区二区-三级国产三级在线-三级国产在线

  Home>News Center>China
       
 

Locust plague devastates crops
By Qin Jize (China Daily)
Updated: 2004-06-24 00:01

An upsurge of oriental migratory locusts in North China and the Yangtze River areas has spiraled into a plague that is devastating crops.


An epidemic-prevention staff member from the grasslands center in Sonid Youqi of Inner Mongolia Autonomous Region shows some locusts killed by pesticides. [newsphoto]
The infestation affected 970,000 hectare of farmland in ten provinces and municipalities, said the Ministry of Agriculture.

Grasshoppers have attacked more than 13.3 million hectares of grassland. Half of that is in Inner Mongolia.

Grasshoppers do not migrate and are less harmful than locusts.

Plant protection departments have brought the infestation under control in 482,000 hectares of farmland, Xinhua reported.

And more resources are on the way, including insecticides, equipment and manpower.

So far, the central government has invested 5 million yuan (US$604,500) and plans to spend 50 million yuan (US$6 million) more.

A plague of locusts is a large, population present in at least two major regions. Locusts are normally lone creatures, but when their numbers boom, they modify their behaviour and group together. Migratory locusts are more harmful than the non-migratory ones.

Hebei Province, one of the spots most seriously hit, is being sprayed with insecticide using planes as well as ground plans to kill the swarms.

To minimize ecological damage, the ministry tried to fight the plague using biological and ecological methods.

From late May, 6.7 million hectares have been set up as sample field in which more environmental-friendly biopesticides have been used.

Other more environmentally sound alternatives, like improvement of the plantation of the plague area and taking the advantage of natural enemies were also used in the country's 8-million-hectare sample areas.

Earlier, a Xinhua report said that China's first airport for locust control started operation on June 17 in East China's Shandong Province.

Located in Kenli County in the rural area of Dongying, the airport has a concrete runway and parking lot totalling about 40,000 square metres. The runway is 670 metres by 34 metres.

China approved the construction of three airports devoted exclusively to locust elimination in 2001, including the one in Shandong.

In another development, State Forestry Bureau said that forest pests are causing great loses to China this year.

Pests have attacked area 8.7 million hectares this year.

Experts estimate economic loses will be 100 billion yuan (US$12 billion) and there is no end in sight.

The pest attack is more serious and diversified in South China than in the northern part. North and Northeast China are relatively better off.

Growing foreign trade has brought with it a growing number of alien invasive species.

A warm and dry climate and the structure of the forest, which features large proportion of baby-trees, also help the pests develop.

An insect pest in South China's Shankou Mangrove Reserve at the end of May destroyed 66.7 hectares of in two weeks, the Xinhua News Agency reported.

Mangrove expert Fan Hangqing said the destruction in the city of Fangchenggang along the Sino-Viet Nam border was caused by a kind of caterpillar. He attributed the pest's arrival to constantly expanded offshore aquatic breeding.

Warning that such negative impacts are slow but cumulative, Fan said the pest attack is a sign of a destroyed mangrove ecosystem.



 
  Today's Top News     Top China News
 

Price hikes not to stop until October

 

   
 

DPRK: Concrete plans can help nuclear talks

 

   
 

Audit: US$170 million misused in budget

 

   
 

China set to clarify bankruptcy protection

 

   
 

43 missing in boat capsizal feared dead

 

   
 

Migrant workers get injury insurance

 

   
  43 missing in boat capsizal feared dead
   
  Audit: US$170 million misused in budget
   
  China aims at regional maritime law centre
   
  Migrant workers get injury insurance
   
  Shanghai to deal with shortage of places to go
   
  Development fund to aid small, medium firms
   
 
  Go to Another Section  
 
 
  Story Tools  
   
  News Talk  
  When will china have direct elections?  
Advertisement
         
主站蜘蛛池模板: 国产麻豆视频免费观看 | 日本高清高色 | 久久99精品波多结衣一区 | 美国特级片 | 日韩欧美一区二区三区不卡视频 | 免费国产成人 | 国产片久久 | 四虎东方va私人影库在线观看 | 国产精品毛片大码女人 | 欧美成人手机在线 | 国产酒店自拍 | 久久有这有精品在线观看 | 欧美日韩大尺码免费专区 | 片在线观看视频免费 | 老司机观看精品一区二区 | 欧美成人26uuu欧美毛片 | 亚洲六月丁香婷婷综合 | 国产精品自在线 | 国产人成精品香港三级古代 | 国产在线播放你懂的 | 日韩免费观看视频 | 91果冻传媒文化有限公司 | 黄色永久免费 | 成人午夜兔费观看网站 | 亚洲视频在线观看网站 | 欧美一级高清片免费一级 | 久久两性视频 | 成人在线观看午夜 | 免费一级特黄特色黄大任片 | 一级黄色在线观看 | 国产免费福利视频 | 第一福利在线视频 | 成成人看片在线 | 国产一区三区二区中文在线 | 亚洲国产成人99精品激情在线 | 日本黄色网页 | 亚洲精品亚洲人成在线观看麻豆 | 色综合久久精品中文字幕 | 国产精品黄在线观看免费软件 | 国产精品污 | 亚洲天堂一区二区三区四区 |