Muscled out?

Locusts might become endangeredfollowing the recent approval ofthe world's first bioinsecticideagainst the insects. Named GreenMuscle, the fungal pesticide spray,made by South Africa (SA)-basedBiological Control Products hasbeen cleared for sale in the country.The spray contains spores ofMetarhizium anisopliae, a fungusthat invades and kills locusts andgrasshoppers but is harmless tobeneficial insects. It kills nine out ofevery 10 locusts within 21 days of itsspraying, says researcher DavidDent, who helped develop GreenMuscle (New Scientist, Vol 160,No 2162).

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