China NATESC Warns against More Severe Pest Outbreaks in 2019

On 2 Jan 2019, China NATESC (National Agricultural Technology Extension and Service Center) made a pests forecast on 2019, which was concluded after a thorough expert consultation in December 2018. Based on the pest population, plant distribution, cropping pattern and climate trends, total affected area could reach 300 million hectares in 2019. The figure is higher than last year's and NATESC warned that Fusarium graminearum, aphids, rice planthopper, Chilo suppressalis, Rhizoctonia solani, Ostrinia nubilalis and Helicoverpa armigera would severely outbreak. Armyworm would intensively hit many parts of northern China and meadow moth could be in for another blow-out. Locusta migratoria manilensis, Locusta.

Crop

Pest and Disease

Affected area forecasted(HA)

Severity and Region

Rice

Rice planthopper

20 million

  • Severe insouthern China region, south of the Yangtze River region and eastern part of southwestern China region;
  • Moderate in westernpart of southwestern China region, middle and lower Yangtze River region and Jianghuai region;

 

Rice leafroller

14.6 million

  • Severe in northern part ofsouthern China region, south of Yangtze River region and parts of middle and lower Yangtze River region;
  • Moderate insouthern part of southern China region and most Jiang-Huai region;

 

Chilo suppressalis

12 million

  • Severe or concentrated outbreak in south of the Yangtze River region,northern part of southwestern China region and middle Yangtze River region;
  • Moderate in northern part of southern China region, lower Yangtze River region and Jiang-Huai region;
  • Slight in southern part of southern China region,southern part of southwestern China region and northeastern China region;

 

rice sheath blight

16.6 million

  • Severe in southern China region, south of the Yangtze River region,northern part of southwestern China region and middle and lower Yangtze River region;
  • Significant in south of the Yangtze River region and middle Yangtze River region;
  • Moderate in southern part of southwestern China region;

 

Magnaporthe grisea

4.67 million

  • Severe in southern China region, south of the Yangtze River region, Hilly and mountainous area of southwestern China region,the area along the middle and lower Yangtze River region and northeastern China region

 

Ustilaginoidea oryzae

2.67 million

  • Severe in south of the Yangtze River region and intermediate-late maturity rice area in Jiang-Huai region;

Wheat

Aphids

14.6 million

  • Severe in Huang-Huai-Hai region;
  • Moderate in northwestern and southwestern region;

 

Fusarium Head Blight(FHB)

10 million

  • Prevail in middle and lower Yangtze River region, Jiang-Huai region, south of Huang-Huai region;
  • Moderate in northern China region, southwestern and northwestern regions;

 

Puccinia striiformis

2 million

  • Moderate or severe in parts of Jianghan plain, Hanjiang River basin, southwestern and northwestern regions;

Corn

Ostrinia nubilalis

20 million

  • G1 corn borer would be severe in northern part of northeastern China and the total area would be 7.33 million hectares;
  • G2 corn borer would be severe in northeastern China and parts of southwestern China and the total area would be 8 million hectares;
  • G3 corn borer would be severe inHuang-Huairegion and the total area would be 4.7 million hectares;

 

Athetis lepigone

0.73 million

  • Overall Slight in Huang-Huai-Hai region but some area would be severely affected;

 

Exserohilum turcicum

4.3 million

  • Moderate in northeastern and northern China and most parts of southwestern China;
  • Moderate to severe outbreaks in parts of northeastern China;

 

Puccinia polysora Underw

2.67 million

  • Overall moderate but possible severe outbreak in parts of Huang-Huai region;

 

Phytophthora infestans

10 million

  • Overall moderate occurrence but possible severe outbreak in most parts of southwestern China, northern part of northeastern China, northern China and eastern part of northwestern China

Polyphagous and migratory Pests

Pest

Area(hectare)

Severity and Region

Helicoverpa armigera

6 million

  • Overall moderate but G3 and G4 species would severely outbreak in Huang-Huai-Hai region and pose major threats to corn, peanut, sunflower and soybean in northern China;

Mythimna separate(armyworm)

4.33 million

  • Overall moderate but G2 and G3 species would seriously affect corn, millet, and rice in northern China.

Loxostege sticticalis

1 million

  • Possibly severe in most parts of northeastern and northern China and pose major threats to soybean, corn and other crops.

Locusta migratoria manilensis

1 million

  • Overall slight occurrence;
  • Bohai gulf area and Yellow river beach region would be moderately affected;
  • Possible dense outbreaks in some new habitant area around lakes, reservoirs and wetland;

Locusta migratoria tibetensis

0.1 million

  • Moderate in Sichuan and most parts of Tibet;
  • Moderate to severe occurrence in river valley regions such as Jinsha River, Yalong River and Brahmaputra River;

Locusta migratoria migratoria

20,000

  • Slight occurrence in Altay, Tacheng and Kashgar regions and possible immigrant pests from abroad;
  • Possibly dense outbreaks in wetland zone of western Jilin and southwestern Heilingjiang;

Reference Link

NATESC's News Release(in Chinese)

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