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Occurrence forecast of corn diseases and pests in H2 2016, China

Date:08-10-2016

By Think Real - During 14-15 July, 2016, the National Agro-Tech Extension and Service Center (NATESC) held a Commerce Meeting for the Occurrence Trend of Major Diseases and Pests for Agricultural Crops in China in H2 2016. On the meeting, it was predicted that in the second half of 2016, the occurrence of corn diseases and pests will be serious on the whole, with an accumulated area of 60.7 million ha (those of pests and diseases are 38.6 million ha and 22.1 million ha respectively), which is close to the average in the past five years. Moreover, late July-the end of Aug. is the peak occurrence period.
 
Table 6: Occurrence area and predicted occurrence area of corn diseases and pests in China, H1 and H2 2016, million ha
Disease/pest
Occurrence area
 in H1 2016
Predicted
occurrence area
 in H2 2016
Total
Pest
First-generation
 corn borers
4.4
6.8
11.2
Second-generation
 corn borers
0.20
8.0
8.2
Third-generation
 corn borers
0.0
5.2
5.2
Athetis lepigone
0.97
0.0
0.97
Second-generation
 armyworms
1.7
0.0
1.7
Third-generation
 armyworms
0.0
1.3
1.3
Aphids
0.87
5.3
6.2
Spider mites
0.53
1.9
2.5
Bollworm
0.07
3.0
3.1
Local locust
0.40
0.93
1.3
Underground pests
3.6
2.0
5.7
Four yellow spotted
 leaf beetle
0.17
2.1
2.3
Thrips
2.5
0.90
3.4
Other pests
0.37
0.97
1.3
Subtotal
15.8
38.6
54.4
Disease
Northern leaf blight
0.43
5.7
6.2
Southern leaf blight
0.13
3.2
3.3
Rust
0.17
3.3
3.5
Brown spot
0.03
2.6
2.6
Curvularia lunata
0.0
2.2
2.2
Sheath blight
0.50
1.5
2.0
Smut
0.07
1.0
1.1
Head smut
0.03
0.90
0.93
Stem rot
0.03
0.60
0.63
Rough dwarf
0.27
0.10
0.37
Other diseases
0.37
0.97
1.3
Subtotal
2.0
22.1
24.1
Source: NATESC
 
 
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