THIERRY BERROD, MONA LISA PRODUCTION / SCIENCE PHOTO LIBRARY THIERRY BERROD, MONA LISA PRODUCTION / SCIENCE PHOTO LIBRARY
Rice farming. Chinese farmers in rice fields in Hunan Province, China. The piles of straw, which are moved from field to field, contain spiders being used as biological controls of the insect pests that destroy the crops. This research is being carried out by Professor Yan Hengmei of Hunan Normal University, Changsha.
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