Pest pink cassava mealybugs are shown in a laboratory at Bogor Agricultural University in Bogor, West Java, Indonesia, Wednesday, Sept. 24, 2914. They are the size of a pinhead and don't even pack a sting, but these tiny wasps are cold-blooded killers nonetheless. They work as nature's SWAT team, neutralizing a pest that threatens to destroy one of the developing world's most important staple foods: cassava. The wasps are being released in Indonesia, the latest country threatened by the mealybug. It's a white fuzzy-looking insect shaped like a pill that's been making its way across Southeast Asia's fields for the past six years. Scientists will put 2,000 wasps into a holding cage at an affected field in Bogor. They will be monitored to see how well they handle local conditions as they multiply to an expected 300,000 over the next month before being released into the wild to start their relentless killing spree.