Many seed and pesticide companies are investing in the search for biological pesticides. Some bacteria and small fungi repel pests on plants, and promote beneficial microflora and absorption of nutrients for faster growth. The companies want to use these microorganisms in new products for coating seeds or spraying on plants. Companies are seeking increased diversity in their pesticides, and the use of DNA analysis and technology in microbe cultivation allows them to identify and screen for microorganisms that can serve as pesticides and protect crops from conditions such as drought. Because these pesticides are naturally produced, they can be used in organic-food production. Currently, yearly sales of biological pesticides total $2 billion, comprising 4% of sales of chemical sprays. Consumer concerns over man-made pesticides and chemicals will likely increase sales of biological products. Several large chemical firms have either bought companies focused on biological pesticides or are increasing research into developing such products.

Source: The Wall Street Journal