Worms threaten Zim's crops

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The outbreak of army worm -- a caterpillar that eats crops -- was top of Zimbabwe's state-run radio bulletins earlier this week in a sign of just how seriously the authorities take the threat.Quoting an official from the state Department of Agricultural and Research Extension Services (Arex), the paper said 811ha of desperately-needed maize, sorghum and millet had been destroyed so far. This could represent around 4 000 tonnes of grain, the paper estimated.