Monday, 05 January 2015 00:00

Apex – new Botrytis fungicide

Written by 
Downy Mildew Downy Mildew

This season Zelam is set to launch a new product onto the market for the control of Botrytis and Downy Mildew in wine grapes.

Apex is a combination of two active ingredients; pyrimethanil and fluazinam. Both of these actives have a great track record of disease control in stand-alone forms but until now have not been formulated together into one convenient product. The pyrimethanil component is systemic, so is able to penetrate into the bunch and flower parts to stop Botrytis development at its source. Fluazinam is a contact protectant with multi-site activity.

One of the key benefits of this mixture is for disease resistance management. In recent years in New Zealand, we have started to see the effectiveness of some products diminish. This is due to an increased tolerance of the pathogen population to the active ingredients they have been exposed too. Pyrimethanil is from the anilinopyrimidine (AP) group of fungicides. AP fungicides have been documented overseas as becoming less effective against Botrytis with overuse. In order to maintain the longevity of this group of chemistry, the industry comply with some guidelines on its use. One of the key directives is that AP chemistry should always be used in conjunction with another effective fungicide. Since Apex also contains fluazinam as part of the formulation, it has a built-in and industry compliant resistance management solution in one product thus, eliminating the need for tank mixing.

Apex now also features in the updated version of the Zelam Grape Spray Calculator App, which was launched last year for the key Botrytis products including Nexus and Pinnacle. The Zelam Grape Spray Calculator App allows users to easily work out the correct per hectare rate of product for their particular vineyard, eliminating under or over dosing.

More like this

Among the vines

Grape bunches become progressively more susceptible to Botrytis infection as harvest approaches.

Science of wine – Trevor Lupton

While many tear their hair out over vexatious problems like botrytis, powdery mildew and achieving nil-residue in wine, Gisborne's Trevor Lupton regards such things as challenges.

Blown away by shaking

Botrytis is the scourge of winegrowers the world over. It is costly to control, impacts on the ensuing wine and can greatly reduce yields.

Controlling Botrytis Organically

It is hard to quantify just how much botrytis infection costs the New Zealand wine industry. Needless to say, it is substantial, which makes controlling it a priority of on-going research.

New sensation in vineyards

New Zealand grape growers have a new weapon for controlling powdery mildew with the launch this week of Bayer’s new dual-action fungicide Luna Sensation

» Latest Print Issues Online


Perfect pivots — Editorial

Perfect pivots — Editorial

Misha Wilkinson’s description of “pirouetting” through Covid-19 seems apt, given the industry’s need to stay on its toes throughout this…

Save our soils — Editorial

Save our soils — Editorial

There’s been something of a makeover in New Zealand vineyards in recent years, as the clean-cut look of sprayed rows…

Popular Reads