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Guide Teacher: D.Rajathi
Citation preview
Name : D. RAJATHI
B.T. Assistant
School : C.S.I MIDDLE SCHOOL,
KULLAKAMBY.
Topic : Creating PARTHENIUM
AWARENESS among students and
the public.
ABOUT PARTHENIUM
HYSTEROPHORUS:
It is a weed with no economical value. Within the
past century, it has found its way to Africa,
Australia, Asia and Pacific Islands. And now it
has become one of the world”s sevenmost vast
developing and hazardous weeds.
ORIGIN OF PARTHENIUM
HYSTEROPHORUS:
This alien weed is believed to have been
introduced into India as contaminants in PL 480
wheat imported from the U.S.A in the 1950’s.
WHERE IS PARTHENIUM HYSTEROPHORUS
USUALLY FOUND:
1.Railway track
2. Roads
3. Drainage
4. Developing residential colonies around the
towns etc.
Presently………….
This invasive weed is widely prevalent in
India and approximately 2 million hectares of
land in India have been infested with this
herbaceous weed.
A single plant can produce………..
10,000 to 15,000 seeds and these seeds can disperse
and germinate to cover large areas.
CHEMICAL ANALYSIS OF PARTHENIUM
HYSTEROPHORUS:
Chemical analysis of Parthenium
hysterophorus has indicated that all its parts
including trichones and pollen contain toxins
called bitter glycoside parthenin a major
sesquiterpene lactone.
Parthenin, hymenin and ambrosin are found
to be the culprits behind the menacing role of
this weed in provoking health hazards.
HEALTH HAZARDS TO HUMANS:
-Affects food and fodder crops, since the
pollen and dust of this weed elicit allergic
contact DERMATITIS [ is a T – cell mediated
immune injury and the disease manifests as
itchy erithematous papules and
papulovesicular lesions on exposed areas of
the body] and respiratory malfunction in
humans.
HEALTH HAZARDS TO LIVESTOCK :
-Exposure to Parthenium hysterophorus causes
systemic toxicity in livestock Alopecia , loss of
skin pigmentatlion, dermatitis and diarrhoea in
animals.
- Buffalo Degenerative changes in both the liver
and kidneys and inhibition of liver hydrogenasis
in and sheep
-the presence of parthenin pollen grains is
responsible for bitter milk disease in livestock fed
on grass mixed with its leaves
WHAT HAPPENS WHEN A PERSON IS
EXPOSED TO THIS PLANT FOR A PROLONGED
PERIOD?
He / She
Manifests
the symptoms of
1. Skin inflammation
2. Eczema
3. Asthma
4. Allergic bronchitis
ENTERING INTO OUR PROBLEM--------
TEAM FORMED……
1. K. Arul kumar[VIII Std]---KULLAKAMBY ESTATE
2. S. Sutheesh[VII Std]—PALLANIAPPA ESTATE
3. C.Rahul [VIII Std]—MANAR
4. T.Pradeep [VII Std]—LOUISIANA
5. S. Dhinesh [VII Std]—WOODLANDS ESTATE
PROBLEM IDENTIFIED:-
Ignorance of the public about the
health hazards rendered by Parthenium
hysterophorus to humans and livestock.
AREA WHERE WE FOUND PARTHENIUM
HYSTEROPHORUS:
Around school and on the way [ which is
often used by the public and our school
children] to the Kullakamby bazaar.
HOW PARTHENIUM TRIGGERED ALLERGY
ON A STUDENT!!!!!!
DISCUSSION WITH THE TEAM MEMBERS:
-----they shared their experience [ how they
played with the parthenium hysterophorus
plants without knowing their illeffects]
-----they were explained about the health
hazards rendered by these plants
----- they were explained about the health
benefits of these plants
-----they were advised to give awareness to
their parents, neighbours and babies
-----they were asked to convey the message
to their parents and their co-workers and
seek their help to dispose by using some
pesticide like tic20
-----the team was taken to the spot and
explained the way how they should clear off
the plants with the help of scissors by
wearing mask and gloves.
When the team met public-----------
Suggestions given to students,
parents and the public:
- They were asked to discover some uses of
the weed so that we can indirectly eradicate
parthenium hysterophorus slowly.
-They are asked to use the parthenium
biomass as energysource, manure and
pesticide.
- They are asked to destroy the plant when
it is too small
- They were asked to use tic-20 pesticide
with the help of the estate management.
-They were asked to use Eucalyptus oil
sometimes
-They are advised to grow Mary Gold in
order to suppress the growth of Parthenium
hysterophorus
CONCLUSION:-
Though parthenium hysterophorus has so
many health benefits , it renders too many
health hazards to humans. So it is advisable
to eradicate this weed from our
surroundings some way or the other.