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China Corn borer: first generation’s damage predicted to be moderate generally in 2016, 9.3 million ha in total

Date:07-01-2016

By Think Real-According to the National Agro-Tech Extension and Service Center (NATESC)’s projection published on 13 June, 2016, the number of live corn borers on 100 plants in most planting areas this year is lower than those in conventional years including 2015. The first generation of corn borer is predicted to heavily strike the western part of Northeast China, the northern part of Xinjiang Uygur Autonomous Region and some regions in the Huang-Huai-Hai Area; moderately in North China, the rest of Northeast China and the Huang-Huai-Hai Area; and slightly in the rest of the planting areas in the country. Estimation of the total occurrence area of the first generation pests would be around 9.3 million ha.
 
It’s predicted that the period from mid-June to late July would be the peak period for adult emergence of the first-generation corn borer in most corn-growing areas this year. The emergence has already started in southern areas including Hunan Province and Yunnan Province as early as in May.
 
Table 15: Average number of live corn borers (first generation) on 100 plants in different regions in 2016
City/province/region
Number of
 live pests on
100 plants (head)
Change again
 the past five
years’ average
YoY change
Liaoning
70
-17.2%
106.0%
Jilin
45.8
-26.3%
60.7%
Henan
24.3
-18.6%
38.9%
Hebei
20.7
-18.9%
27.0%
Shanxi
14.9
-26.8%
26.3%
Shandong
33
26.2%
22.2%
Tianjin
13.6
-29.2%
0.0%
Xinjiang
33
-32.0%
-7.8%
Chongqing
5.6
-33.1%
-9.7%
Heilongjiang
41.6
-62.5%
-10.0%
Hunan
12
-42.7%
-14.3%
Shaanxi
9.6
-40.6%
-15.8%
Hubei
15.3
-35.3%
-19.5%
Sichuan
6.6
-55.9%
-25.8%
Inner Mongolia
21.1
-40.5%
-37.9%
Beijing
3.8
-72.7%
-39.7%
Anhui
16.2
-60.4%
-41.7%
Jiangsu
15.5
-41.6%
-56.2%
Source: NATESC
 
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