1.   The use of biochemical defoliators to destroy coca plants was also rejected.

2.   An attack on coca plants may be only a first salvo in the attack of the Fusarium fungus.

3.   As the United States helps Colombia wipe out coca plants in a major coca-growing province, the growers move to an adjacent province.

4.   ----- Are the media barking up the wrong coca plant with George W. Bush?

5.   Bright green coca plants and poppy fields dot many of the clearings, verdant cash crops in a land of hunger and war.

6.   But, in essence, that broad plan became obsolete in May, when the Colombian police conducted a massive spraying operation of coca plants in Norte de Santander.

7.   Coca farmers in southern Colombia ended talks with the government without agreement in a dispute over chemical spraying of illegal coca plants, El Tiempo reported.

8.   Cocaine is made from the coca plant.

9.   Cocaine, which comes from the coca plant, is a natural substance.

10.   Colombia is the second-most important source of coca plants in the world, trailing only neighboring Peru.