CABI has launched a comprehensive national action plan aimed at combatting the scourge of Parthenium, a highly invasive species of weed, prevalent and spreading in Pakistan.

The comprehensive Parthenium Weed Management Action Plan was unveiled during a two-day workshop held in Islamabad on 8th and 9th October, 2018.

The workshop’s main objectives were to share experiences and information on Parthenium weed’s presence and impacts in Pakistan, and draft an initial comprehensive action plan in the short, medium and long term.

Crucially, the workshop also served as a gateway to facilitating the management of all invasive species, beyond Parthenium. ‘We asked participants to really think outside the box in terms of outreach, policy, and research – using Parthenium as a stepping stone to consider how to tackle other invasive species threats to Pakistan,’ commented Julien Godwin, programme support manager for Action on Invasives, and lead on much of the workshop.

The action plan comprises of three stages: research, development and communication. It will emphasize strengthening links between stakeholders to set priorities, list key activities and institutions involved. It will focus on developing a Weed Management Decision Guide (WMDG) in order to utilise best practices for early detection, prevention and control.

The weed can be controlled by chemicals but they are toxic for the environment. This is where CABI comes in to assist farmers by providing them with an integrated and sustainable framework to address the issue of invasive weed. These not only include potential control methods, but also outreach programmes to ensure farmers, as well as the public, are aware of this destructive and dangerous weed.

Each year, invasive species approximately cost the global economy more than US$1.4 trillion. The burden of invasive weeds is heavily bared by the most vulnerable and poorest. In Southeast Asia, every year, invasive species cost at least US$33 billion, reducing the total GDP by 5%. It is one of CABI’s objectives to protect and restore agriculture sector, improve health and refurbish natural ecosystems. Eventually, this will be achieved through the DFID and Directorate-General for International Cooperation (DGIS)-funded Action on Invasives initiative that aims to help improve the livelihoods of approximately 50 million poor rural households, affected by invasive species in Asia and Africa.

Parthenium manipulates the ecology of fields, affects yield of crops, and invades forests through its aggressive nature and allelopathy (hindering development of different plants). It even causes serious threats to surrounding livestock and has the capability to cause rigorous allergies among humans who regularly interact with the weed. In India, Parthenium has resulted in yield losses of up to 40% in various crops. In terms of pasture production, this noxious weed has been found to reduce livestock carrying capacities by 90%. And at a previous workshop held by CABI, Dr Asad Shabbir, assistant professor in the department of Botany at the University of Punjab, predicted Pakistan to be extensively hit.

Known commonly as ‘Gajar booti’, Parthenium looks very beautiful nestled within its white flowers, and is often used locally on daily occasions in bouquets or event decorations. Most people remain oblivious to the health hazards posed by this noxious weed. Its seeds spread through the air and can cause asthma, eye irritation, throat infections, and eczema. It has also been known to cause allergies and digestive problems within livestock and other animal species, as well as humans.

Commenting on this occasion, Dr Babar Bajwa, Regional Director of CABI CWA Pakistan, said, ‘Parthenium is a deadly weed that destroys crops and is also harmful to one’s health. Along with farmers, it is essential that the general public be aware of the presence of this silent enemy living amongst them. We are confident that the CABI Action Plan to combat Parthenium will take great strides in helping prevent the growth and spreading of this destructive pest, and that what we have learned from our actions in Pakistan so far will guide us in developing an overall mechanism for managing other invasive species in future.’

Notes for editors 

About CABI

CABI is an international not-for-profit organization that improves people’s lives by providing information and applying scientific expertise to solve problems in agriculture and the environment. Our 49 member countries guide and influence our core areas of work, which include International Development¬†and¬†Publishing. CABI produces key scientific publications, including¬†CAB Abstracts – the world-leading abstracting and indexing database covering applied life sciences. We also publishmultimedia compendia,¬†books,¬†eBooks¬†and¬†full text products¬†aiming to further science and its application to real life. CABI invests its publishing surpluses directly into development projects, helping to improve livelihoods worldwide.

We gratefully acknowledge the core financial support from our member countries (and lead agencies) including the United Kingdom (Department for International Development), China (Chinese Ministry of Agriculture), Australia (Australian Centre for International Agricultural Research), Canada (Agriculture and Agri-Food Canada), Netherlands (Directorate-General for International Cooperation, and Switzerland (Swiss Agency for Development and Cooperation). Other sources of funding include the fees paid by our member countries and profits from our publishing activities which enable CABI to support rural development and scientific research around the world.


Twitter: (@CABI_Invasives)

Find out more about the CABI-led Action on Invasives programme here:

Visit the new upgraded Invasive Species Compendium here:  

Coming soon – new book as part of the CABI Invasive Series! ‘Parthenium Weed: Biology, Ecology and Management,’ edited by S Adkins, The University of Queensland, Australia, A Shabbir, University of Sydney, Australia, K Dhileepan, Biosecurity Queensland, Australia. Find out more here.

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Wayne Coles, Communications Manager


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