THIERRY BERROD, MONA LISA PRODUCTION / SCIENCE PHOTO LIBRARY THIERRY BERROD, MONA LISA PRODUCTION / SCIENCE PHOTO LIBRARY
Spiders as biological pest control. Magnifying glass being used to study a spider, with farm workers looking on. This research, by Professor Yan Hengmei of Hunan Normal University, Changsha, China, is looking at the possibilities of using spiders as a biological pest control. Piles of straw, which are moved from field to field, contain spiders being used to control the insect pests that destroy the crops.
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