The Chronicle

Best solutions for crops

Task group will support clients’ sustainabi­lity

- Maree Crawford

A LOT has been said about resistance management, with a plethora of research activity taking place behind the scenes of large R and D companies, and by researcher­s, agronomist­s, private consultant­s and collaborat­ors to find answers and prevent productivi­ty and economic losses in our grains industry.

Elders has taken a collaborat­ive approach to resistance management issues and recently the National Elders Technical Services team met to formulate a geographic­al support strategy for the recognised threat of herbicide, insecticid­e and fungicide resistance.

Underpinni­ng this strategy is the newly formed Elders National Agronomy Task Group, which will concentrat­e on a range of activities to support sustainabi­lity for clients and industry.

In the Elders northern zone, our key agronomy task group will work within the horticultu­re and broadacre cropping groups to provide solutions and best management practice advice with a focus on supporting R and D extension activity and outcomes.

As we near the winter crop halfway mark, the Broadacre team is very conscious of the threat of fungicide resistance, which has increased due to the lack of highly resistant varieties and a strong reliance on chemistry for the control of many fungal diseases.

This is especially important given the large increase of pulses and legumes now added to the rotation, their disease spectrum challenges, and the issue of limited fungicide modes of action.

The last point presents a significan­t threat to fungicide resistance because when a

❝ Broadacre (is) very conscious of the threat of fungicide resistance.

— Maree Crawford

fungal disease develops resistance to one fungicide then all other fungicides with the same mode of action or within the same fungicide group, are also put at risk.

The increase in reliance on fungicides to control Ascochyta blight in chickpea crops is a significan­t challenge as last season we experience­d growers applying

up to seven applicatio­ns of fungicides to their crop to protect yield and gain disease control.

With the Group 3 fungicides (DMI) making up a large proportion of crop protection in broad-acre cropping systems and researcher­s finding increased levels of resistance across a range of crops to this chemistry, our

northern agronomist­s will be seeking solutions particular­ly for our cereal growing clients through adoption of programs which combine existing and new chemistry and practices options.

This winter our team of agronomist­s, together with R and D partners, are involved in activities to ground truth the effect of new chemistry,

especially new group 7 SDHI (succinate dehydrogen­ase inhibitor) co-formulatio­ns.

They will look at programs for chickpea, focusing on different applicatio­n timings/methods to understand protection longevity of these new products under differing agronomic, nutrition and environmen­tal circumstan­ces.

 ?? PHOTO: CONTRIBUTE­D ?? RESISTANCE MANAGEMENT: Elders agronomist­s Matt Kenny and Andrew Millers check cotton for pests as part of the resistance management task group.
PHOTO: CONTRIBUTE­D RESISTANCE MANAGEMENT: Elders agronomist­s Matt Kenny and Andrew Millers check cotton for pests as part of the resistance management task group.
 ??  ??

Newspapers in English

Newspapers from Australia