Archives

Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Tuesday, 15 March 2016
In 2015, the problem of glyphosate resistant weeds continued to intensify in many countries, especially in the US.
The president of the Weed Science Society of America recently described how glyphosate resistant weeds are spreading from the south into states including Illinois, Missouri, Nebraska and Kansas, where the problem has “exploded”.1
The problem is caused by the heavy exposure of weeds to glyphosate.
Solutions lie in using different ways to control weeds, including cultural practices such as...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Monday, 25 January 2016
This is the third in a series of articles celebrating the UN FAO’s International Year of Soils and explaining the important role paraquat plays in promoting healthy and productive soils around the world.
FAO have developed a Soils Portal designed as a source of soil information.
The key messages from FAO are that1:
Healthy soils are the basis of healthy food, feed, fibre, fuel and medicines.
Soils support biodiversity.
Soils help to combat climate change,...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Tuesday, 24 November 2015
News and features about paraquat, illustrating its multitude of uses and the benefits it brings to farmers around the world, are regularly posted on the Paraquat Information Center website. Here are the highlights from some popular recent articles.
Paraquat's Evening Performance
Spraying paraquat towards the end of daylight hours can boost the efficacy of weed control. The same factors are at work as when better effects are obtained when paraquat is applied on a cloudy day. These usually result in longer lasting weed control....
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Wednesday, 21 October 2015
The labels of paraquat products must be consulted to determine whether an adjuvant should be added to the spray tank, or whether their use should be avoided.
Surfactants (wetters) are often included in the formulated product and any additional adjuvants are unnecessary and may cause problems. On the other hand, some products may benefit from a tank-mix adjuvant and options will be listed on the label.
Foliar herbicides like paraquat can face challenges on the surface of leaves and in reaching places where they will be most...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Thursday, 03 September 2015
Paraquat is used for weed control by farmers around the world and is playing its part to fight and, if necessary, adapt crop production to climate change.
2015 is the UN’s International Year of Soils. The objectives for the Year of Soils include raising awareness and educating society and decision makers about the profound importance of soil; supporting the sustainable management of soil resources and promoting investment; and enhancing the capacity for information gathering and monitoring at national, regional and global levels...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Tuesday, 07 July 2015
Paraquat is a contact herbicide. It is not systemic, meaning that it does not move inside plants. Only green tissue covered by paraquat spray is affected.
The image opposite shows the results of an experiment in which droplets of paraquat solution were applied to a single leaf.
The intense colours indicate that paraquat has remained in the treated leaf and has no systemic action.
Paraquat’s unique profile
In addition to the contact-only action, paraquat has another rare property: it is deactivated immediately...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Friday, 12 June 2015
Dilemma for Brazilian farmers Soybean growers in Brazil are facing a dilemma. More land under no-till is saving its soil and reducing energy use, but many no-till farmers are now finding that glyphosate resistant weeds are threatening future success.  No-till cropping has been very successful in curtailing soil erosion, with its roots in the 1970s when the British company ICI began experimenting with the use of paraquat for weed control. Later, glyphosate was introduced and, with its advantage of...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Friday, 15 May 2015
Soil is critical to life on earth. It comprises mineral particles, organic matter, water, air, flora and fauna. Soil formation is an extremely slow process, so soil is essentially a non-renewable resource and must be valued, respected and treated with great care. Agronomic techniques such as no-till and cover crops, which involve the use of non-selective herbicides like paraquat for weed control, can preserve and improve the quality of our soils.
The UN Food and Agriculture Organisation (FAO) held a forum in Rome to mark World Soils...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Monday, 16 March 2015
Welcome to The Paraquat Information Center. If you have not visited the website before, or if a reminder of where to find the facts about paraquat and other agronomic information would be useful, here is a brief guide.
Benefits
Paraquat is perhaps the most versatile herbicide ever invented, with uses in more than 100 crops including all major field crops such as maize, wheat, rice and soybeans; orchards growing top fruit and nuts; topical plantations of sugarcane, oil palm and rubber; and horticultural crops including vegetables...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Monday, 09 February 2015
Farming is vital to Argentina’s economy and Argentinean farmers have always been eager to adopt new technologies.
Grains, food and feed commodities such as flour, oil and cake accounted for almost 40% of Argentina’s exports in 2011, which were worth $84 billion in total.1 Soybeans made by far the greatest contribution (beans $5.5 billion; cake $10 billion; oil 5.2 billion).
Soybean has become by far the most important crop and nearly all fields are planted with GM varieties, with the majority being grown...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Monday, 12 January 2015
News and features about paraquat illustrating its multitude of uses and the benefits it brings to farmers around the world are regularly posted on the Paraquat Information Center website. Here are the highlights from some popular recent articles.
Paraquat system saves soil in the Philippines
In the Philippines, more successful results from a project using paraquat to control weeds and prevent soil erosion have been announced. Traditional methods of weed control such as hand hoeing and plowing remove unwanted plant material, ie...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Monday, 15 December 2014
Officially, there are now 31 weed species around the world confirmed as having biotypes resistant to glyphosate. Over the past four years, new cases of glyphosate resistant populations have been confirmed in Argentina, Australia, Brazil, Canada, Greece, Italy, Japan, Mexico, New Zealand, Portugal and the USA. This is, no doubt, just the tip of iceberg, because once a species has several resistant populations in a region, a new one is no longer a surprise and the emphasis shifts from confirming new outbreaks to fighting the problem. ...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Wednesday, 05 November 2014
What are the essential things farmers need to know about spraying paraquat? Paraquat is a fast-acting, broad spectrum, post-emergence herbicide. The label of paraquat products must always be read before use. However, farmers have basic questions such as: how big should weeds be; should another herbicide be tank-mixed or an adjuvant used; will rain after spraying affect activity; can paraquat help fight resistant weeds? 
This article outlines the main practical aspects of using paraquat for weed control.
Safety before,...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Wednesday, 08 October 2014
Paraquat herbicides have played an important role in crop protection in Australia for many years.
There are no effective alternative herbicides to paraquat with its unique properties and mode of action. It is a vital part of weed control in many crops, both in its own right and in fighting resistance to glyphosate.
This article summarises the findings of a recent report, explaining how paraquat benefits Australian farming and the country’s whole economy.
Role of paraquat
Paraquat is a non-selective herbicide...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Tuesday, 09 September 2014
News and features about paraquat illustrating its multitude of uses and the benefits it brings to farmers around the world are regularly posted on the Paraquat Information Center website. Here are the highlights from some popular recent articles.
Sugarcane harvest helped by paraquat
In Brazil, paraquat is helping farmers to harvest more sugarcane, more efficiently. The fast and thorough desiccation achieved by paraquat means faster harvesting, more profitable cropping and less environmental impact.
A...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Friday, 08 August 2014
New varieties of rice being bred at the world renowned International Rice Research Institute (IRRI) at Los Bãnos in the Philippines promise to help rice farmers fight climate change and increase yields. Achieving a secure supply of food from a sustainable agriculture demands an integrated approach to crop production, planting the best new varieties and adopting improved agronomic techniques, such as no-till cultivations with paraquat for weed control. 
A recent article in The Economist magazine described the benefits that...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Thursday, 03 July 2014
No-till is a way of growing crops without plowing. There is no soil disturbance and fields retain a good cover of living or decaying plant material throughout the year. This protects against erosion and encourages a healthy, well-structured soil for growing crops. The system is also known as zero-tillage or direct drilling and is one of a number of practices that are included in the overall concept of conservation tillage.
No-till soils retain water better, while allowing any excess to drain away thanks to a better structure and...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Monday, 26 May 2014
Non-selective herbicides such as paraquat are essential to the efficient conservation of water for use by crops in dry regions. Low rainfall during the growing season means that in these regions crops rely mainly on stored soil moisture.
Ecofallow is a system of soil management developed in the dry mid- and western states of the US and Canada to conserve moisture throughout the crop rotation.
The ecofallow system (also known as ‘chem fallow’) is based on no-till cultivation and herbicides to ensure weeds do not...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Wednesday, 07 May 2014
More modes of action needed to support glyphosate tolerant crops The introduction of glyphosate tolerant (GT) crops has been the one of the most significant technological changes in agriculture. Farmers around the world are reaping the benefits of a simplified weed control system, saving costs, time and labor and increasing operational flexibility. However, relying heavily on a single herbicide mode of action to control weeds encourages the evolution of resistant populations.
Unfortunately, farmers tend to...
Paraquat herbicide for non-selective weed control in no-till and other sustainable agriculture systems
Thursday, 17 April 2014
Herbicides such as paraquat are now more important than ever as people who were raised in the countryside now choose to live in towns and cities.
In Europe and North America, urban populations have exceeded rural ones for decades. As a result, no longer able to rely on an abundant supply of labor, farmers have adopted new technologies and production has had to intensify to ensure that crops are adequately cared for in order to produce enough food.
Now, in Asia, urban populations are about to overtake rural ones and in less than...