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Corteva Agriscience™ / News & Media

News & Resources

Press Releases

Press Release • 27/03/2019

New herbicide gives farmers the freedom of choice.

Farmers understand the old adage ‘time is money’ better than most people. Which is why the latest product from Corteva Agriscience – a new forage brassica herbicide with plant back periods ranging from 0 to 6 months – is creating so much excitement.

Press Release • 1/07/2018

Corteva Establishes a Single Face for Customers

We have recently achieved a significant milestone towards our full business unification, which will immediately enable us to operate as one platform, until Corteva Agriscience becomes a legal entity in its own right in July 2019. From 1st July 2018,

Press Release • 28/05/2018

Our Approach to Sustainability

Krysta Harden, Chief Sustainability Officer, talks about our approach to sustainable agriculture.

Press Release • 1/03/2018

Corteva Executive Outlines Future Strategy

Jim Collins, CEO, talks about the future strategy of Corteva, the Agricultural Division of DowDupont.

Crop Protection Inquiries

Email us at marketing@dow.com

Cereal Aphids caught weekly in Rokeby suction trap

& average weekly temperatures

-         Due to the installation of a farm building in close proximity to the Aphid trap we have not had accurate flight data for a number of weeks. The number of cereal aphids caught in Rokeby suction trap (blue line) between the 13th and 19th of September (September week 2) was once again 0

-         UPDATE AS AT 19.09.19  - The Rokeby Suction trap has now been moved to its new location and more accurate numbers should be shown from this week onwards.

-         Average weekly temperature s for 2019 (purple line), calculated from mean daily temperatures from NIWA CliFlo data for Ashburton (station no. 26170) and

-         The 9 year average of weekly temperature between 2010 and 2018 (red line)

-         4 year average of cereal aphid numbers  for Rokeby (green line)

  • Cereal aphid numbers caught in suction traps are an indication of flights and do not replace the need for direct searching and monitoring in your crop.
  • Relatively high numbers of aphids are expected till the end of May, with spring flights occurring late September or October
  • Generally the warmer the temperature, the faster an aphid will develop into an adult. However other factors, such as amount of rain, can affect aphid development and survival.
  • If you would like to sign up to receive the Aphid trap data by email each week please click here