MANU looks with sadness as he gazes over his potato farm in the village of Tulungredjo in the East Java district of Kota Batu. Spread over a hectare of land, the farm is a picture of failure after a recent invasion by a pest unknown before in Indonesia. In the past two months, a swarm of nematodes known by its scientific name as Globodera rostochiensis and called by the locals as cacing emas or golden worm have wreaked havoc on hundreds of