Corteva Introduces Korvetto Herbicide in the UK Jan 16, 2020 | Agrochemicals, News Your subscription level does not currently cover this area of our services. Please contact us to find out how to gain access. Username or E-mail Password * Remember Me Forgot Password Tags: clopyralid, Corteva, halauxifen, Herbicides, Oilseed Rape, Product Introductions, UK