From: "Rich Gauszka" 

herbicides can't kill it and it appears to have a 2 month cycle and
extremely high yields

http://news.yahoo.com/s/ap/20061221/ap_on_sc/mexico_drugs_4

Soldiers trying to seize control of one Mexico's top drug-producing regions
found the countryside teeming with a new hybrid marijuana plant that can be
cultivated year-round and cannot be killed with herbicides.

"These plants have been genetically improved," he told a handful
of journalists allowed to accompany soldiers on a daylong raid of some 70
marijuana fields. "Before we could cut the plant and destroy it, but
this plant will come back to life unless it's taken out by the roots."

The new plants, known as "Colombians," mature in about two months
and can be planted at any time of year, meaning authorities will no longer
be able to time raids to coincide with twice-yearly harvests.

The hybrid first appeared in Mexico two years ago but has become the plant
of choice for drug traffickers Michoacan, a remote mountainous region that
lends to itself to drug production.

Yields are so high that traffickers can now produce as much marijuana on a
plot the size of a football field as they used to harvest in 10 to 12
acres. That makes for smaller, harder-to-detect fields, though some
discovered Tuesday had sophisticated irrigation systems with sprinklers,
pumps and thousands of yards of tubing.

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