27/7/15 - Adama Rounds Out Radial Label

ADAMA'S new flagship fungicide for winter cereals, Radial, is set to have the final pieces to the disease control puzzle added to its label in the coming weeks. Adama senior product manager Jock Leys says, "whilst we are extremely pleased with the positive uptake of our new fungicide Radial, we have been working to quickly add two more key diseases to its label.

"Through Radial's development period we did not get consistent pressure of septoria tritici blotch (STB) in wheat or spot form of net blotch (SFNB) in barley although we know Radial performs very well on both these diseases," he said. 

Adama now have a submission in with the APVMA to include both these key diseases on the label and expect the registration to be granted in August this year in time for the 2015 use window. The key to Radial's strength across such a broad range of diseases including the two new additions, is the fact it includes the industries two leading active ingredients for cereal diseases (azoxystrobin and epoxiconazole) and unlike similar products in this category it is an EC formulation with the active ingredients fully dissolved and readily available for uptake by the crop, according to Jock.

Septoria tritici blotch

STB is one of the more difficult to control cereal diseases and is becoming even more problematic with the recent discovery of two gene fungicide resistance by NSW Department of Primary Industries, indicating resistance to some of our commonly used triazole fungicides. Radial, having dual modes of action, helps with the management of resistant disease strains. 

STB can normally be identified by distinctive black fruiting bodies on the lead lesions as indicated in the image to the right. 

Early sown crops and crops sown into wheat stubbles are most likely to be infected and the adoption of an integrated disease management approach that includes crop rotation along with the use of fungicides incorporating non triazole active ingredients like Radial should be used. Recent trials submitted for the registration of Radial on STB indicate that it performs very well, and a rate range of between 420mL/Ha and 840mL/Ha is expected to be granted this August.

Spot form of net blotch

Like STB in wheat SFNB in barley is one of the more difficult to control barley diseases. The fungus survives in barley stubbles and unlike STB, the disease disperses widely during the growing season as the spores are readily blown about with wind. In a major report on cereal diseases in 2009 by G. Murray and P. Brennan, SFNB was ranked number 1 for the most economically damaging disease to Australian barley crops. Similar to the recent work with STB, trials indicate Radial performs very well against SFNB and the new label claim is expected to have a rate range of between 420mL/Ha and 840mL/Ha when approved. 

With many sightings of key diseases and with near record cereal prices, Jock highlights that agronomists and growers can have confidence in choosing Radial to protect their valuable crops, especially now with the addition of these two key diseases expected any time. Radial now provides robust protection across the full spectrum of diseases.

For more information please contact

Jock Leys

Senior Product Manager

Email: jock.leys@adama.com

septoria tritici blotch infected wheat Southern Vic in 2014
SFNB trial in barley 2013, Horsham. Untreated.
spot form of net blotch trial in barley treated with radial
SFNB trial in barley 2013, Horsham. Treated with 840mL/Ha of Radial