In
December 1914, the United States Congress passed the Harrison Narcotics Act which
called for control of each phase of the preparation and distribution of medicinal
opium, morphine, heroin, cocaine, and any new derivative that could be shown to
have similar properties. It made illegal the possession of these controlled substances.
The restrictions in the Harrison Act were most recently redefined by the Federal
Controlled Substances Act of 1970. The Act lists as a Schedule II Controlled Substance
opium and its derivatives and all parts of the P. somniferum plant except the
seed.
The first period of large
scale heroin smuggling into the United States since its prohibition occurred during
the years 1967 through 1971. Turkish opium was processed into heroin in France
and then smuggled into New York.
In
the mid-1970s Mexican brown heroin appeared. It was sold at a lower price than
European heroin and became readily available in the West and Midwest. By the mid-1980s
the U.S. heroin market was being supplied from three regions: Mexico, Southwest
Asia (Pakistan, Afghanistan, Turkey, Lebanon), and Southeast Asia (Burma, Laos,
Thailand). Soon thereafter, South American heroin from Columbia appeared.
In
1997, Southeast Asia still accounts for well over half of the world's opium production.
It is estimated that the region has the capacity to produce over 200 metric tons
of heroin annually. Although much of it is consumed in Asia, thousands of kilograms
of Southeast Asian heroin enter the United States each year.
The
chemical structure of opiates is very similar to that of naturally produced compounds
called endorphins and enkephalins. These compounds are derived from an amino acid
pituitary hormone called beta-lipotropin which when released is cleaved to form
met-enkephalin, gamma-endorphin, and beta-endorphin. Opiate molecules, due to
their similar structure, engage many of the endorphins' nerve-receptor sites in
the brain's pleasure centers and bring about similar analgesic effects. In the
human body, a pain stimulus usually exites an immediate protective reaction followed
by the release of endorphins to relieve discomfort and reward the mental learning
process. Opiates mimic high levels of endorphins to produce intense euphoria and
a heightened state of well-being. Regular use results in increased tolerance and
the need for greater quantities of the drug. Profound physical and psychological
dependence results from regular use and rapid cessation brings about withdrawal
sickness.
In addition to the pleasure/pain
centers, there is also a concentration of opiate receptors in the respiratory
center of the brain. Opiates have an inhibiting effect on these cells and in the
case of an overdose, respiration can come to a complete halt. Opiates also inhibit
sensitivity to the impulse to cough.
A
third location for these receptors is in the brain's vomiting center. Opiate use
causes nausea and vomiting. Tolerance for this effect is built up very quickly.
Opiates effect the digestive system by inhibiting intestinal peristalsis. Long
before they were used as painkillers, opiates were used to control diarrhea.
The
opium poppy, Papaver somniferum, is an annual plant. From a very small round seed,
it grows, flowers, and bears fruit (seed pods) only once. The entire growth cycle
for most varieties of this plant takes about 120 days. The seeds of P. somniferum
can be distinguished from other species by the appearance of a fine secondary
fishnet reticulation within the spaces of the coarse reticulation found all over
their surface. When compared with other Papaver species, P. somniferum plants
will have their leaves arranged along the stem of the plant, rather than basal
leaves, and the leaves and stem will be 'glabrous' (hairless). The tiny seeds
germinate quickly, given warmth and sufficient moisture. Sprouts appear in fourteen
to twenty-one days. In less than six weeks the young plant has grown four large
leaves and resembles a small cabbage in appearance. The lobed, dentate leaves
are glaucous green with a dull gray or blue tint.
Within
sixty days, the plant will grow from one to two feet in height, with one primary,
long, smooth stem. The upper portion of this stem is without leaves and is the
'peduncle'. One or more secondary stems, called 'tillers', may grow from the main
stem of the plant. Single poppy plants in Southeast Asia often have one or more
tillers.
As the plant grows tall,
the main stem and each tiller terminates in a flower bud. During the development
of the bud, the peduncle portion of the stem elongates and forms a distinctive
'hook' which causes the bud to be turned upside down. As the flower develops,
the peduncle straightens and the buds point upward. A day or two after the buds
first point upward, the two outer segments of the bud, called 'sepals,' fall away,
exposing the flower petals.
Opium
poppies generally flower after about ninety days of growth and continue to flower
for two to three weeks. The exposed flower blossom is at first crushed and crinkled,
but the petals soon expand and become smooth in the sun. Opium poppy flowers have
four petals. The petals may be single or double and may be white, pink, reddish
purple, crimson red, or variegated. The petals last for two to four days and then
drop to reveal a small, round, green fruit which continues to develop. These fruits
or pods (also called 'seedpods', 'capsules,' 'bulbs,' or 'poppy heads') are either
oblate, elongated, or globular and mature to about the size of a chicken egg.
The oblate-shaped pods are more common in Southeast Asia.
The main stem of a fully-matured
P. somniferum plant can range between two to five feet in height. The green leaves
are oblong, toothed and lobed and are between four to fifteen inches in diameter
at maturity. The mature leaves have no commercial value except for use as animal
fodder.
Only the pod portion of
the plant can produce opium alkaloids. The skin of the poppy pod encloses the
wall of the pod ovary. The ovary wall consists of an outer, middle, and inner
layer. The plant's latex (opium) is produced within the ovary wall and drains
into the middle layer through a system of vessels and tubes within the pod. The
cells of the middle layer secrete more than 95 percent of the opium when the pod
is scored and harvested.
Cultivators
in Mainland Southeast Asia tap the opium from each pod while it remains on the
plant. After the opium is scraped, the pods are cut from the stem and allowed
to dry. Once dry, the pods are cut open and the seeds are removed and dried in
the sun before storing for the following year's planting. An alternative method
of collecting planting seeds is to collect them from intentionally unscored pods,
because scoring may diminish the quality of the seeds. Aside from being used as
planting seed, the poppy seeds may also be used in cooking and in the manufacture
of paints and perfumes. Poppy seed oil is straw-yellow in color, odorless, and
has a pleasant, almond-like taste. The opium poppy grows best in temperate, warm
climates with low humidity. It requires only a moderate amount of water before
and during the early stages of growth. In addition, it is a 'long day' photo-responsive
plant. As such, it requires long days and short nights before it will develop
flowers. The opium poppy plant can be grown in a variety of soils; clay, sandy
loam, sandy, and sandy clay, but it responds best to sandy loam soil. This type
of soil has good moisture-retentive and nutrient-retentive properties, is easily
cultivated, and has a favorable structure for root development. Clay soil types
are hard and difficult to pulverize into a good soil texture. The roots of a young
poppy plant cannot readily penetrate clay soils, and growth is inhibited. Sandy
soil, by contrast, does not retain sufficient water or nutrients for proper growth
of the plant.
Excessive moisture
or extremely arid conditions will adversely affect the poppy plant's growth and
reduce the alkaloid content. Poppy plants can become waterlogged and die after
a heavy rainfall in poorly drained soil. Heavy rainfall in the second and third
months of growth can leach alkaloids from the plant and spoil the opium harvest.
Dull, rainy, or cloudy weather during this critical growth period may reduce both
the quantity and the quality of the alkaloid content.
Opium
poppies were widely grown as an ornamental plant and for seeds in the United States
until the possession of this plant was declared illegal in the Opium Poppy Control
Act of 1942. New generations of plants from the self-sown seed of these original
poppies can still be seen in many old ornamental gardens.
The
major legal opium poppy growing areas in the world today are in govemment-regulated
opium farms in lndia, Turkey and Tasmania, Australia. The major illegal growing
areas are in the highlands of Mainland Southeast Asia, specifically Burma (Myanmar),
Laos, and Thailand, as well as the adjacent areas of southern China and northwestern
Vietnam. The area is known as the 'Golden Triangle'. In Southwest Asia, opium
poppies are grown in Pakistan, Iran, and Afghanistan. Opium poppy is also grown
in Lebanon, Guatemala, Colombia and Mexico.
The
highlands of Mainland Southeast Asia, at elevations of 800 meters or more above
sea level, are prime poppy growing areas. Generally speaking, these poppy-farming
areas do not require irrigation, fertilizer, or insecticides for successful opium
yields.
Most of the opium poppies
of Southeast Asia are grown in Burma (Myamnar), specifically in the Wa and Kokang
areas which are in the northeastern quadrant of the Shan State of Burma. Laos
is the second-largest illicit opium-producing country in Southeast Asia and third-largest
in the world. While most heroin could be said to be "Made in Myanmar"
Afghanistan contributes a large portion of the world's supply - See chart below.
In
Laos, poppy is cultivated extensively in Houaphan and Xiangkhoang Provinces, as
well as the six other northern provinces: Bokeo, Louangnamtha, Louangphabang,
Oudomxai, Phongsali and Xaignabouli. Poppy is also grown in many of the remote,
mountainous areas of northern Thailand, particularly in Chiang Mai, Chiang Rai,
Mae Hong Son, Nan and Tak Provinces.
In
China, opium poppies are cultivated by ethnic minority groups in the mountainous
frontier regions of Yunnan Province, particularly along the border area with Burma's
Kachin and Shan States. Son La Province, situated between China and Laos, is a
major opium poppy cultivation area in Vietnam, as are Lai Chau and Nghe An Provinces.
It is noteworthy that the dominant
ethnic groups of Mainland Southeast Asia are not poppy cultivators. The Burmans
and Shan of Burma, the Lao of Laos, the Thai of Thailand, the Han Chinese of Yunnan,
China, and the Vietnamese of Vietnam are lowlanders and do not traditionally cultivate
opium poppies. Rather, it is the ethnic minority highlander groups, such as the
Wa, Pa-0, Palaung, Lahu, Lisu, Hmong, and Akha who grow poppies in the highlands
of the countries of Southeast Asia.
A
typical nuclear family of Mainland Southeast Asian highlanders ranges between
five and ten persons, including two to five adults. An average household of poppy
farmers can cultivate and harvest about one acre of opium poppy per year. Most
of the better fields can support opium poppy cultivation for ten years or more
without fertilization, irrigation, or insecticides, before the soil is depleted
and new fields must be cleared. In choosing a field to grow opium poppy, soil
quality and acidity are critical factors and experienced poppy farmers choose
their fields carefully. In Southeast Asia, westerly orientations are typically
preferred to optimize sun exposure. Most fields are on mountain slopes at elevations
of 1,000 meters (3,000 feet) or more above sea level. Slope gradients of 20 degrees
to 40 degrees are considered best for drainage of rain water.
In
Mainland Southeast Asia, virgin land is prepared by cutting and piling all brush,
vines and small trees in the field during March, at the end of the dry season.
After allowing the brush to dry in the hot sun for several days, the field is
set afire. This method, called 'slash-and burn' or 'swidden' agriculture, is commonly
practiced by dry field farmers - both highland and lowland - throughout Mainland
Southeast Asia in order to ready the land for a variety of field crops. The slash-and-burn
method is also used to clear fields for poppy cultivation. Before the rainy season
in April, fields by the hundreds of thousands all over the region are set ablaze.
A fog-like yellow haze hangs over the area for weeks, reducing visibility for
hundreds of miles. In the mountains, the dense haze blocks out the sun and stings
the eyes.
A typical highlander family
will plant an area of two or three rai in opium poppy (2.53 rai is equivalent
to one acre). In August or September, toward the end of the rainy season, highland
farmers in Southeast Asia prepare fields selected for opium poppy planting. By
this time, the ash resulting from the burn-off of the previous dry season has
settled into the soil, providing additional nutrients, especially potash. The
soil is turned with long-handled hoes after it is softened by the rains. The farmers
then break up the large clumps of soil. Weeds and stones are tossed aside and
the ground is leveled off.
Traditionally,
most highland and upland farmers in Southeast Asia do not use fertilizer for any
of their crops, including the opium poppy, but in recent years opium poppy farmers
have started using both natural and chemical fertilizers to increase opium poppy
yields. Chicken manure, human feces or the regions' abundant bat droppings are
often mixed into the planting soil before the opium poppy seed is planted.
Source:
Opium - Poppy Cultivation, Morphine
and Heroin Manufacture