Weed: Gajjar Booti (Parthenium)

Gajjar Booti (Parthenium) is a fast growing weed in the world and ranked it among the top 10 destructive weeds of the world.  "Parthenium hysterophorus" is scientific name and Carrot Grass, Ragweed, and Congrus grass is its English names. Its origin from Mexico and spread through out the world.
In Pakistan Parthenium came from India through vegetable and fodder seed and spread in a destructive way all around the country. For short time its presence was in uncultivated area but now it is a severe problem of the cultivated areas of the Pakistan. Its is found normally in all crops, road sides, river banks, Canal sides and even in the urban areas.

Plant Characteristics:

1. It is a summer perennial weed.
2. At starting its plant is very tender and later on produce branches like bushes.
3. Parthenium has a strong stem and long root system.
4. It complete its life cycle within a month under favorable conditions.
5. It produce whit colored flower on the top of branches.
6. A single plant of Parthenium can produce more than 10000 or 25000 seed.

Harmful for Human beings: produces different kind of elegies on skin, eyes and in br
Harmful for livestock
Change C:N ratio in the soil and retard the growth of crops and other beneficial plants.
Produce allelopathic compounds which retards the growth of other plants.
Major host plant for Mealy Bugs.

Control:
By cultural control destroy the weed on its early growth stage.
Clean the roads and water channel and destroy it before seed producing stage.

By Chemical Control:
Use Glyphosate / Round up 500 ml in 20 liter of water and spray it on early growth stage of the plat repeatidly.