Wildcat
1 Trade nameManufacturerForm
WILDCAT 110 EC SELECTIVE HERBICIDEBAYER CROPSCIENCE PTY LTDEC

2 PRICE:

$81.4/L

3 ACTIVE INGREDIENTS: Fenoxaprop-p-ethyl 110g/L

4 CHEMICAL GROUP: A

'Fops' or oxyphenoxy alkanoic acids.

5 RELATED HERBICIDES:

AramoTepraloxydim 200g/L
Butroxydim 250Butroxydim 250g/kg
CheetahDiclofop200+Fenxaprop13.6+Sethoxydim20g/L+mefenpyr
CorrectPropaquizafop 100g/L
Diclofop plus sethoxydimDiclofop 200g/L + sethoxydim 20g/L
Diclofop-methyl 375Diclofop methyl 375g/L
FluazifopFluazifop-p 128g/L
FluazifopFluazifop-p 212g/L or kg
FusionButroxydim 250g/kg + fluazifop 212g/kg
Haloxyfop 130Haloxyfop 130 g/L
MotsaClethodim 200g/L + haloxyfop 50 g/L
Pinoxaden 100Pinoxaden 100g/L
PumaFenoxaprop-p-ethyl 76g/L + mefenpyr 18.8 g/L
QuizalofopQuizalofop-p-ethyl 200g/L
QuizalofopQuizalofop-p-ethyl(or tefuryl) 99.5g/L
SelectClethodim 240g/L
Sertin 186 ECSethoxydim 186g/L
Topik 240 ECClodinafop-propargyl 240g/L
Tralkoxydim 400Tralkoxydim 400g/kg
Tristar AdvanceDiclofop 250g/L + fenoxaprop 13g/L + mefenpyr 7g/L
Verdict 520Haloxyfop 520 g/L
WildcatFenoxaprop-p-ethyl 110g/L


6 GENERAL DESCRIPTION:

Fenoxaprop is a selective and translocated herbicide that is absorbed through both leaves and roots. Its main use is for controlling wild oats and annual Phalaris in Wheat, Triticale, Cereal Rye and Chickpea crops. Barley may be damaged by Puma S. Toxicity to mammals and birds is low but it is toxic to fish. In land environments it presents few environmental hazards because of its low mobility in soil, low volatility, low toxicity and reasonably quick degradation in soil and water. Direct application to aquatic ecosystems should be avoided. Application to flood irrigated areas or similar may lead to contamination of water. Plants are likely to become resistant to Fenoxaprop after repeated applications. Broad leaf plants and legumes are not affected by Fenoxaprop. Non flammable. Non corrosive.

7 APPLICATION METHODS AND TIPS:

Fenoxaprop is normally applied in water as a post-emergence spray by boom sprays or aircraft. Oils and wetting agents are included in the formulation and additional adjuvants are usually unnecessary. Optimum droplet size is 200-300 micron.

It is most effective when applied to actively growing plants. Plants under drought stress are very difficult to kill with Fenoxaprop. Low temperatures and humidity also reduce the efficacy. Wild oat plants in the two leaf stage are more susceptible to Fenoxaprop than older or younger plants.

Fenoxaprop has no residual activity so plants emerging after spraying will not be affected.

It is tolerant to the normal range of water qualities but avoid using muddy water. Breaks down quickly in alkaline water. Half life in water is about 1 day.

Wildcat S is rainfast in 4 hours. At higher temperatures and lower humidity it is rainfast in a shorter time.

11 COMPATIBILITY:

Hoegrass, Eclipse, Broadstrike and Lontrel are compatible with Wildcat S.

Tigrex, Jaguar, MCPA LVE, Ally and Glean(up to 15g/ha) reduce the effectiveness of Puma S by 10-30% on wild oats and more on annual phalaris.

Bromoxynil, Glean, 2,4-D, Dicamba and picloram are incompatible and sprays should be separated by at least 7 days.

Wildcat S is the preferred post emergence wild oat herbicide where Logran has been used pre emergence. Other wild oat herbicides appear to lose more wild oat control than Wildcat S.

Non ionic wetting agents may improve the absorption of fenoxaprop by plants. Spraying oils may also improve the translocation of Fenoxaprop which improves weed control but may reduce the crops tolerance of Fenoxaprop. The Wildcat S formulation contains oils and wetters. Field trials have shown little benefit from the addition of extra wetting agents and oils.

Hormonal herbicides such as 2,4-D are antagonistic. 2,4-D decreases the conversion from the ethyl to the active acid form, decreases translocation of Fenoxaprop, increases the rate of detoxification and competes at the fatty acid synthesis level. Plants treated with 2,4-D up to two weeks before or after Fenoxaprop application may be less susceptible to Fenoxaprop. MCPA antagonism is different and appears to be caused by reactions outside the plant.

14 HERBICIDE RESISTANCE:

Ryegrass and wild oats that are tolerant to Fenoxaprop occur naturally at low levels. After four or five annual applications of Fenoxaprop a significant level Fenoxaprop tolerance would be expected if no other form of weed control was practised.

20 MODE OF ACTION:

Fenoxaprop is absorbed through the foliage of nearly all plants. In susceptible plants it is converted from the ethyl to the biologically active acid form. Typically, less than 10 per cent of this is translocated in the phloem and xylem to accumulate in the growing tips. Cell division and elongation are stopped resulting in the stunted appearance of treated plants. Fatty acid synthesis is stopped resulting in the death of growing tips, hence leaves of treated grasses can be easily pulled from their sheaths. Plants tolerant to Fenoxaprop appear to have a different fatty acid synthesis mechanism, degrade Fenoxaprop more quickly and do not convert as much of the inactive ethyl to the active acid form.

24 TOXICITY:

Poison schedule S5.

Mammalian toxicity - low.

Acute oral LD50 - >500 mg/kg (mouse); 2090-3245 mg/kg (rat);

Acute dermal LD50 - > 5000 mg/kg (rat)

Inhalation LC50 - > 5.45 mg/L (rat)

Skin - non irritating (formulated product is irritating).

Eye - non irritating.(formulated product is irritating).

Birds - low, LD50 >2000 mg/kg (quail).

Fish - low LC50 4-7 mg/L.

Invertebrates (eg. marron) - low

Bees - non toxic.

Earthworms - low toxicity

Microbes - little effect.

25 TOXICITY SYMPTOMS:

If splashed in eyes - wash out with water immediately and then see a doctor.

23 PLANT SYMPTOMS:

Wild oats and annual phalaris stop growing soon after application. The young leaves show yellowing 2-3 days after application and may be easily pulled from their sheaths. About a week later, they begin to die, starting with the young leaves then the old leaves then the shoot. Complete death may take up to 4 weeks. Plants that recover have severely reduced root systems.

27 ENVIRONMENTAL FATE:

Fenoxaprop is strongly adsorbed on soils which prevents leaching into ground water. In soil, microbes break down Fenoxaprop with a half life of around 14 days. At higher pH and under anaerobic conditions the half life is increased. It is broken down in plants. Fenoxaprop is rapidly excreted from animals and does not move into milk or eggs. It is degraded by light. In water the half life is approximately 1 day.

Fenoxaprop residues have not been detected in grain. The withholding period is 10 weeks for cereals and 14 weeks for chickpeas.

Susceptible crops such as barley, oats, corn and sorghum can be planted 3 weeks after fenoxaprop application.

31 PROPERTIES:

Density - 1.03 g/mL

Odour - Aromatic.

Combustibility - Combustible liquid, Class C1.

Corrosiveness - Non corrosive to most spray fittings.

Shelf life - 2 years.

Hazchem - Not classified as a dangerous good for road or rail transport.
2.Concentration of Active Constituent : 100 g/L
3.Formulation : Oil in water emulsion (E.W.)
4.Poison Schedule : 5
5.Trade name : Wildcat S - Aventis
6.Product Colour : Light to dark brown liquid.
7.Product Flammability : Non-flammable
11. Registered Crop(s) : Wheat.

15. Mode of Action : Foliar absorption, limited translocation, Post emergent
  1. Rate Variations :
  2. Rates Selection : Lower rates apply generally 3-6 weeks post sowing when cereal usually 2 leaf to early tillering (Z12 - Z22). Higher rates apply up to 10 weeks after sowing to actively growing weeds up to mid tillering (Z22 - Z24).
21a. Effect on Clover Species : Nil effects.

21c. Effect on Lucerne : Nil.
22.Soil Moisture at Application :
DRY - Avoid.

MOIST - Ideal.

WATERLOGGED - Avoid.
23.Frost Effects : Continuous severe frosts slow the speed of action.
24.Frost Free Days Required After Application :
25.Effect of Application Water Quality on Herbicide :
The active constituent is very unstable in alkaline conditions. The purer the water the slower the breakdown. Avoid muddy water.
26.Recommended Water Volume : 50 - 150 L/ha boom, 25 - 30 L/ha aircraft, steady cross wind and swath width of 15 - 18m. Aim for droplet size of 200-300 microns.
27.Nozzle Type : 1100 nozzles T11002-T11003 or similar.
28.Recommended Nozzle Pressure : 280 - 300 kPa (40 - 43.5 psi)
30.Recommended Wetter : None, the addition of wetting agents do not increase the level of weed control when added to recommended rates under normal growing conditions.
31.Other Additives : None.
32.Rain Fastness : 4 hours.
33.Time Interval Before Effect is Noticed : 14 - 28 days, depending on climatic conditions.
34.Plant Symptoms : First visible symptoms appear 2 - 3 days after application with a cessation of growth; new leaves or secondary roots are no longer formed. Chlorosis begins in the young leaves then necrosis spreads over the leaves and shoot, slowly killing the whole plant.
35.Effect of Herbicide/Disease Interaction on Crop :
36.Withholding Period : 110 days.
37.Plant-Back Period : Wheat, Oats, Barley - 3 weeks; Corn, Sorghum - 10 weeks.
38.Spray Tank Clean-Up : Water and detergent.
39.Other Comments : Do NOT apply with boomless jets or misters.
33 REFERENCES:

Aventis (2001), Wildcat Technical Guide

Acknowledgments:

Collated by HerbiGuide. For more information see www.herbiguide.com.au or phone 08 98444064.