VareonPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

An emulsifiable concentrate containing 320g/l prochloraz, 40g/l proquinazid and 160g/l tebuconazole.

Winter wheat, spring wheat, winter and spring barley, winter and spring oats.

Wheat: Eyespot, Septoria spp. powdery mildew, yellow and brown rusts, septoria leaf blotch (moderate control), glume blotch (moderate control), ear disease complex* (reduction only).
Barley: Rhynchosporium (moderate control), net blotch (moderate control), brown rust, yellow rust, powdery mildew, eyespot.

Oats: Crown rust (qualified minor use recommendation), powdery mildew.

* The ear disease complex refers to Fusarium, Alternaria and Cladosporium.

Cereals: 1.25 l/ha 

Apply in a minimum of 200 l/ha as a MEDIUM spray quality.

Category B - 5m buffer zone, which can be reduced depending on dose rate, width of watercourse, sprayer type or 1m zone if ditch is dry

Rainfall within 2 hours of application may reduce the effectiveness of the treatment.

Limit to number of applications Wheat, barley and oats:- 2 applications per crop.
Maximum individual dose:- 1.25 l/ha

Wheat (winter and spring): GS65 (before full flowering)
Barley and Oats (winter and spring): GS49 (before beginning of heading)

5 litre

4 hectares

 

Do not apply to crops under stress.

Do not apply during frosty weather.

 

There are no following crop restrictions after using Vareon.

 

Vareon contains prochloraz, tebuconazole (DMI fungicides) and proquinazid (a quinazolinone fungicide) with activity on a wide range of diseases. Vareon is a unique cereal fungicide which combines the complementary activity of two triazoles with proquinazid, which has been previously been shown to boost the activity of triazoles and offer induced host defence to assist the control of a wide range of diseases in wheat, barley and oats. Disease control in cereals can be achieved by a routine programme of preventative spray treatments or by regular monitoring of crops and spraying only when diseases are building up.

 

Best results are obtained when applied before significant levels of disease are established in the crop. A further application may be made after 3 weeks. Applications to crops where significant symptoms are present are likely to be less effective. There is a possibility that some crops, particularly oilseed rape and other brassicas, may suffer adverse effects from Vareon. Care should be taken to avoid drift onto non-target crops.

 

Vareon can be used on all winter and spring varieties of wheat and barley. Vareon can also be used on oats as a qualified minor use recommendation as the crop safety on oats has not been fully assessed. Vareon is accepted by the BBPA for use on crops for malting. Apply Vareon from before (as a protectant treatment) or at the onset of disease up to the latest approved applications timings as listed above. Best results are achieved when applications are applied before disease is established within the crop. A further application can be made after 3 weeks.

 

Vareon is safe to use on all commercial varieties of winter wheat, winter barley and spring barley if used as directed.

 

Apply Vareon at 1.25 l/ha. Rates may be subject to adjustment depending on variety, tank-mix partner and disease pressures.

 

Apply Vareon in a minimum of 200 l/ha using spraying equipment to give good even coverage of the crop. Apply as a MEDIUM quality spray as defined by BCPC. Low volumes are not advised in dense crops at later growth stages. There is a possibility that some crops, particularly oilseed rape and other brassicas, may suffer adverse effects from Vareon. Care should be taken to avoid drift onto non-target crops. Avoid spraying within 5m of the field boundary to reduce effects on non-target insects or other arthropods.

 

Do not apply Vareon during frosty weather or high temperatures or drought conditions. Applications under such conditions may result in some scorch. Rain occurring within two hours of application may reduce the effectiveness of the treatment.

 

WHEAT:Septoria leaf blotch – moderate control

Glume blotch – moderate control

Yellow rust

Powdery  mildew

Brown rust

Eyespot

Ear disease complex* (reduction only)

BARLEY:Rhynchosporium – moderate control

Net blotch – moderate control

Brown rust

Powdery  mildew

Yellow rust

Eyespot

OATS:Crown rust (qualified minor use recommendation)

Powdery  mildew

 

When fungicides with the same mode of action are used repeatedly over several years in the same field, naturally occurring less sensitive strains may survive, propagate and become dominant in that field. A pathogen is considered resistant to a fungicide if it survives a correctly applied treatment at the recommended dose and timing, under normal weather conditions. Development of resistance within a pathogen can be avoided or delayed by alternating or mixing products having a different mode of action. The Fungicide Resistance Action Group has produced guidelines on the management and avoidance of fungicide resistance. Details of these can be obtained from your supplier or DuPont. Resistance to DMI fungicides has been identified in Septoria leaf blotch (Mycosphaerella graminicola), which may seriously affect the performance of some products. For further advice on resistance management, contact your agronomist or specialist advisor and visit The Fungicide Action group (FRAG) website.

 

Refer to compatibility appendix.

 

Ensure sprayer is clean before use. Vareon containers should be shaken well before use. Vareon mixes easily with water and should be added directly to the spray tank during filling. Half fill the spray tank with clean water. Add the required quantity of Vareon, add the remained of water and begin agitation. Wash out container and add washings to the spray tank. Continue agitation during filling and when spraying. On emptying the container, RINSE CONTAINER THOROUGHLY by using an integrated pressure rinsing device or manually rinsing three times. Add washings to sprayer at time of filling.