What to do against nematodes in potatoes?

The building plan choices for the new year also include consideration of whether a nematicide such as Vydate 10G is needed. First of all, it is important that you know which nematode species or species you are dealing with and how high the infestation is. This requires a soil investigation. Only when you know who 'the opponent' is, can you make a plan of action. 

If an infection has been established for AM, for example, a variety selection test is now a good option. Many problems can be avoided with the right variety on the right plot.

Trial results
If the use of a nematicide makes sense, a choice can still be made between different agents. In 2019 HLB commissioned by Corteva agriscience conducted a trial to compare various nematicides. This trial was located in Ter Apel (Gr.) on a plot mainly contaminated with potato cyst nematodes. The trial had four replicates for good statistical reliability.

The photo below shows this test field photographed with a drone. It is easy to see that there is a difference between the different treatments within the trial field. The fields are always 10 meters long and four rows wide.

Aerial photo trial field Ter Apel, 2019

The fields treated with Vydate 10G have a faster development than the fields where alternative means have been used. This difference was seen for both the full-field dose and the row dose.

In the autumn, HLB determined the yields of the various treatments. The fields with a faster initial development also turned out to give a higher starch yield. The result shows that the average yield per hectare is highest on the fields where Vydate 10G has been applied. View and compare the results here. 

Colorado beetles
In the trial field in Ter Apel, clear differences were also seen with regard to the infestation of Colorado potato beetles. Vydate 10G showed the strongest effect against the first generation Colorado potato beetles in the 10 kg dose, but certainly also in the 20 kg dose. This means that the first spraying can be postponed longer.

Vydate 10G is more soluble than alternative products and therefore becomes available to your crop more quickly. Because most damage from nematodes occurs at the beginning of cultivation, this is an important advantage. In addition, your potatoes are also better protected under drier conditions. Vydate 10G thus provides more operational reliability.

lice effect
In other test fields, the lice effect of Vydate 10G has been examined. The effect on lice of Vydate 10G was found to be comparable to that of Actara. So up to 8 to 9 weeks after planting, your potatoes will remain aphid-free. Read more about this on Aaltjes.net: Vydate 10G against lice in seed potatoes.

More information about Vydate 10G?
Allard Jukema – Product Manager Corteva
Email: allard.jukema@corteva.com
Phone: 06 – 2007 8675