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Non-food Crop FAQsIn this section you will find answers to the questions asked most frequently about Dow AgroSciences’ products that are used in non-food crops grown in the UK. Areas covered include the control of difficult broad-leaved weeds and the environmental impact of using residual herbicides. How can I control Japanese Knotweed (Fallopia japonica)?How can I control Slender Speedwell (Veronica filiformis) in turf? Why can I not use agricultural products; they have the same active ingredients? Is there any way Buddleia can be controlled? Does Tordon* 22K reduce biodiversity because it is a residual product? How can I control Japanese Knotweed (Fallopia japonica)?Japanese knotweed is notoriously difficult to control with most products on the market. However, one treatment that gives excellent control of the weed is Tordon* 22K. For more information, please contact Nomix Enviro Ltd on 01179 574574, who will be able to discuss control of the weed in more detail, and give the best advice for your particular situation. How can I control Slender Speedwell (Veronica filiformis) in turf?Slender speedwell is a difficult weed to control. The best treatment to use is Bastion* T, applied at 3.0 litres per hectare, when the weed is actively growing. It is important to make sure that the leaves of the weed are dry at the time of application. Why can I not use agricultural products; they have the same active ingredients?It is true that agricultural products and non-crop products often share the same active ingredients. However, the products sold in to non-crop areas very often have totally different formulations, designed to be safe to turf for example. Additionally, specific trials are done in non-crop areas to make sure the products are effective and safe in the area of use in which they are applied. Finally, it is illegal to apply a product that is not approved for a particular area of use. Is there any way Buddleia can be controlled?There are no label recommendations with any Dow AgroSciences products. Users have informed us that Timbrel* applied at 6.0–8.0 litres per hectare can give good results. Further treatments may be necessary on larger weeds. Does Tordon* 22K reduce biodiversity because it is a residual product?It is true that Tordon 22K is a residual broad-spectrum herbicide that can control a wide range of broad-leaved weeds. However, Tordon 22K is safe to grasses, which are an important habitat for many species of insects and birds. Additionally, trials on areas populated exclusively by Japanese knotweed have shown that in the year after application, when the Japanese knotweed has been killed, native species such as foxglove and bluebell recolonise the treated area. In this way the biodiversity of the treated area is improved, not reduced. |
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