A farmer sprays pesticide in the wheat field in Chengguan Township of Neihuang County in Anyang City, Central China's Henan Province, May 3, 2013. Farmers here are busy with taking care of the crop to ensure the summer wheat harvest. (Xinhua/Liu Xiaokun) 

Farmers spray pesticide in the wheat field in Chengguan Township of Neihuang County in Anyang City, Central China's Henan Province, May 3, 2013. Farmers here are busy with taking care of the crop to ensure the summer wheat harvest. (Xinhua/Liu Xiaokun) 

A farmer sprays pesticide in the wheat field in Chengguan Township of Neihuang County in Anyang City, Central China's Henan Province, May 3, 2013. Farmers here are busy with taking care of the crop to ensure the summer wheat harvest. (Xinhua/Liu Xiaokun) 

A farmer waters the wheat field in Chengguan Township of Neihuang County in Anyang City, Central China's Henan Province, May 3, 2013. Farmers here are busy with taking care of the crop to ensure the summer wheat harvest. (Xinhua/Liu Xiaokun) 

A farmer waters the wheat field in Chengguan Township of Neihuang County in Anyang City, Central China's Henan Province, May 3, 2013. Farmers here are busy with taking care of the crop to ensure the summer wheat harvest. (Xinhua/Liu Xiaokun) 

A farmer carrying a shovel walks in the wheat field in Xichanggu Village of Chengguan Township of Neihuang County in Anyang City, Central China's Henan Province, May 3, 2013. Farmers here are busy with taking care of the crop to ensure the summer wheat harvest. (Xinhua/Liu Xiaokun) 

A farmer sprays pesticide in the wheat field in Chengguan Township of Neihuang County in Anyang City, Central China's Henan Province, May 3, 2013. Farmers here are busy with taking care of the crop to ensure the summer wheat harvest. (Xinhua/Liu Xiaokun)