Bensulide

1 Trade nameManufacturerForm
NUTURF EXPORSAN SELECTIVE TURF HERBICIDEAMGROW PTY LTDEMULSIFIABLE CONCENTRATE



Previously sold as Prefar

3 ACTIVE INGREDIENTS: Bensulide 410g/L

4 CHEMICAL GROUP: J - Phosphorodithioates.

Inhibitors of fat synthesis.

5 RELATED HERBICIDES:

2,2-DPA 7402,2-DPA 740g/kg
Avadex BWTri-allate 400g/L
Avadex XtraTri-allate 500 g/L
BensulideBensulide 410g/L
EptamEPTC 720g/L
Flupropanate 745Flupropanate 745g/L
Molinate 960Molinate 960g/L
ProsulfocarbProsulfocarb 800g/L
Saturn ECThiobencarb 800g/L
Tramat 500 SCEthofumesate 500g/L

6 GENERAL DESCRIPTION:

A soil applied, pre emergence herbicide used mainly in lawn, cotton and vegetables.

7 APPLICATION METHODS AND TIPS:

Performance increases with decreasing organic matter and clay content and increasing soil pH.

10 WATER QUALITY:

Hard water

Colloids

pH

11 COMPATIBILITY:

14 HERBICIDE RESISTANCE:

18 PROTECTIVE CLOTHING:

20 MODE OF ACTION:

Inhibits mitosis reducing root growth and cell division.

Performance increases with decreasing organic matter and clay content and increasing soil pH.

Uptake and translocation:

Absorbed onto root surfaces. Very little is translocated.

Physiological effects:

Residual Life and Breakdown:

21 SELECTIVITY:

Crop tolerance:

Varietal sensitivities:

Effect on Clover Species:

Effect on Medic Species:

Effect on Lucerne:

Effect on Native Plants:

22 DISEASE AND INSECT EFFECTS:

23 PLANT SYMPTOMS:

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Schedule 6.

Details:

Mammalian toxicity -

Acute oral LD50 - 770 mg/kg (rats), [For comparison table salt is 3000 mg/kg]

Acute dermal LD50 - > mg/kg (rabbit).

Skin -

Eye -

Vapour inhalation - LC50 - > mg/L air (rat).

Chronic oral toxicity NOEL - ppm for two years.

Not mutagenic or teratogenic (i.e. does not cause cancer or reproductive problems).

Other Species -

Birds - toxicity.

Fish - toxicity LC50 > ppm.

Invertebrates - toxicity.

Bees - toxicity.

25 TOXICITY SYMPTOMS:

26 FIRST AID:

27 ENVIRONMENTAL FATE:

Tightly bound on colloids in the top 50 mm of soil.

It has a half life in soil of .

It has an EPA classification for soil mobility that ranges from

Ground water contamination

Replanting intervals

Accumulation in milk and tissues.

31 PROPERTIES:

Active is colourless liquid or white solid.

Water solubility at 20 C. - 25 ppm;

Oil solubility - moderate.

Octanol:Water ratio at 25 C. - at pH 5;

Vapour Pressure at 25 C. -

Dissociation constant - pKa

Melting point - 34.4 C.

Molecular weight - 397.5

Specific gravity - 1.224

Half life in water - days at pH5 and 35 C.

33 REFERENCES:

Ashton, F.M. and Crafts, A.S. (1981) Mode of Action of Herbicides. (Wiley-Interscience publication).

Acknowledgments:

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