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A suspension concentrate containing 500 g/litre (41.32% w/w) quinoxyfen. A systemic fungicide for protection against POWDERY MILDEW on WINTER WHEAT, WINTER BARLEY, SPRING WHEAT, SPRING BARLEY, WINTER OATS, SPRING OATS, RYE, TRITICALE, DURUM WHEAT and SUGAR BEET

DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.

NOTES
Do not spray in windy weather and avoid drift on to non-target crops/areas. FORTRESS® used alone is rainfast one hour after application. Wash equipment thoroughly after use. Under conditions of severe drought stress, the systemic effect of FORTRESS may be reduced. 

RESISTANCE
FORTRESS contains a quinoline group fungicide and must be considered to be in the same mode of action group for resistance management purposes as quinazolinones. Strains of wheat powdery mildew insensitive to quinoxyfen have been isolated, there is a risk that these may reduce the effectiveness of FORTRESS. To prevent the development and spread of these strains it is important that the following guidelines are followed: • Use FORTRESS in alternation or in mixture with fungicides of a different mode of action effective against powdery mildew. • Always apply in mixture with a curative fungicide where disease is established. • Do not apply more than two applications to the same crop. • Do not apply in the autumn.

PROBLEM CONTROLLED
FORTRESS is a systemic protectant fungicide giving protection against powdery mildew infection on new plant growth. FORTRESS has no curative properties and will not control latent infections of powdery mildew. (Latency is the period between infection having taken place and the development of visible symptoms).

CROPS
CEREALS
FORTRESS may be used on all varieties of winter and spring sown wheat, barley, oats, rye, triticale and durum wheat.

SUGAR BEET
FORTRESS may be used on all varieties of sugar beet

RATES OF USE
CEREALS
Winter wheat, spring wheat, winter barley, spring barley, winter oats, spring oats, rye, triticale and durum wheat 
Maximum individual dose: 0.3 litre/ha 
Maximum total dose per crop: 0.6 litre/ha

Winter wheat - Split dose treatment 
As an alternative to the 0.3 litre/ha rate, a sequence of two applications of FORTRESS at 0.15 litre/ha can be made to winter wheat crops.

SUGAR BEET
Maximum individual dose: 0.3 litre/ha 
Maximum total dose per crop: 0.4 litre/ha

Sugar beet - Split dose treatment
As an alternative to the 0.3 litre/ha rate, a sequence of two applications of FORTRESS at 0.2 litre/ha can be made to sugar beet crops. The sequence approach may be beneficial where high and sustained levels of powdery mildew are expected, where re-infestation of powdery mildew is expected, or where a later harvest is planned.

TIME OF APPLICATION
For best results, FORTRESS should be applied at an early stage of disease development, before infection spreads to new crop growth. This is particularly important if weather conditions and/or crop varieties are favourable for disease development. FORTRESS has no curative properties and will not therefore control latent or established infections of powdery mildew present at application. If infection is established, a curative fungicide should be tank mixed with FORTRESS (see Compatibility section). For broad spectrum disease control, FORTRESS should be used in tank mix with a broad spectrum fungicide (see Compatibility section). If the disease pressure remains high, a further application of FORTRESS may be necessary.

CEREALS
FORTRESS should be applied in the spring only, at the first sign of disease. Applications can be made to cereal crops from the mid-tillering stage of crop growth (Zadoks 25) up to Zadoks 49. If a split application is made to winter wheat crops, the first application should be made at the first signs of disease (approximately Zadoks 30-31), with a second application 4 weeks later at approximately Zadoks 37-39.

SUGAR BEET
FORTRESS should be applied at the first sign of disease which is usually late July or early August. If applying FORTRESS in a sequence, a further application can be made to sugar beet crops any time up to 28 days before harvest.

MIXING
Half fill the sprayer tank with clean water and commence agitation. Add the appropriate amount of FORTRESS and add the remainder of the water. The spray mix must be agitated continuously during mixing and until application is complete. Empty containers should be rinsed thoroughly, and the rinsings added to the spray tank.

WATER VOLUME 
CEREALS AND SUGAR BEET
The recommended spray volume is 200 to 400 litres of water per hectare. The lowest water volume should only be used on very open crops. Use the higher water volume where the crop is dense. The recommended spray pressure is 2.0 to 3.0 bars.

SPRAY QUALITY
Apply FORTRESS as a MEDIUM spray, as defined by the BCPC system, using a conventional hydraulic sprayer

COMPATIBILITY
For the latest advice on tank mixes please contact Dow AgroSciences.

Dow AgroSciences Conditions of Supply 
All goods supplied by us are of high grade and we believe them to be suitable but, as we cannot exercise control over their storage, handling, mixing or use, or the weather conditions before, during or after application which may affect the performance of the goods, all conditions and warranties, statutory or otherwise, as to the quality or fitness for any purpose of our goods are excluded. No responsibility will be accepted by us or re-sellers for any failure in performance, damage or injury whatsoever arising from their storage, handling, application or use. These conditions cannot be varied by our staff or agents whether or not they supervise or assist in the use of such goods