Symetra

Manufacturer
SYNGENTA
Category
Fungicides
Registered until
2024-06-30
Registration number
16701
Active materials
Links
FORMULATION & ACTIVE INGREDIENT:SYMETRA contains 200 g/l azoxystrobin and 125 g/l isopyrazam as a suspension concentrate.
TARGETS:For control of Sclerotinia stem rot (Sclerotinia sclerotiorum) on oilseed rape.
 
DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be carefully read in order to obtain safe and successful use of this product.
 
RESTRICTIONS
Certain apple varieties are highly sensitive to azoxystrobin. As a precaution SYMETRA should not be applied when there is a risk of spray drift onto neighbouring apple crops. Spray equipment used to apply SYMETRA to other crops should not be used to treat apples.

GENERAL INFORMATION
SYMETRA is a suspension concentrate containing 200 g/l azoxystrobin and 125 g/l isopyrazam. For the control of Sclerotinia stem rot (Sclerotinia sclerotiorum) on oilseed rape.
Isopyrazam is an orthosubstituted pyrazole carboxamide fungicide belonging to the sub-class of the benzonorbornenes. Isopyrazam is an SDH inhibitor (FRAC group #7 carboxamides). Isopyrazam is predominantly protectant but has significant biochemical potency and can deliver disease control away from the point of application. No cross resistance to any compound of a different fungicide class is expected.
Azoxystrobin and other strobilurin analogues inhibit fungal respiration. Their mode of action is different from the action of other fungicidal groups and there is no known cross-resistance to this mode of action in pathogens which have developed reduced sensitivity to other fungicides. SYMETRA has contact and systemic activity, with protectant properties for the control of sclerotinia in all commercial varieties of winter and spring oilseed rape.
 
DISEASES CONTROLLED
Sclerotinia stem rot (Sclerotinia sclerotiorum).
 
CROP SPECIFIC INFORMATION
Timing
Before applying SYMETRA, ensure the crop is free from any stress caused by environmental or agronomic effects. Best results will be achieved from applications made as a protectant treatment following a disease risk assessment or the use of appropriate decision support systems.
SYMETRA should be applied as a protectant spray during flowering. The optimum timing is early flowering to mid flowering (GS61–GS65) and no later than end of flowering (GS69).
Rate Of Use
1 litre per hectare

MIXING AND SPRAYING
Ensure that the sprayer is clean and correctly set to give an even application at the required volume. Half fill the spray tank with clean water and start agitation. Shake the container and add the required amount of SYMETRA to the sprayer using a filling device (e.g. induction bowl or closed transfer unit) or by direct addition to the sprayer tank.
Wash out containers thoroughly, preferably using an integrated pressure rinsing device, or manually rinse three times. Add washings to the sprayer at the time of filling. Complete filling to the required volume and continue to agitate throughout the spraying operation.
Do not leave the spray liquid in the sprayer for long periods (such as during meal breaks or overnight).

VOLUME OF WATER AND SPRAYING
Apply in a recommended 100 litres of water per hectare using a medium quality spray (BCPC) at a pressure of at least 2 bar. Apply through conventional crop spraying equipment.

AFTER SPRAYING
Thoroughly wash out sprayer according to the manufacturer’s guidelines and dispose of washings and clean containers according to DEFRA Code of Practice and local water authority guidelines.
Registered for culturesRateBBCH
Spring rape1 l61 - 69
Winter rape1 l61 - 69