Bensulide
| 1 Trade name | Manufacturer | Form |
| NUTURF EXPORSAN SELECTIVE TURF HERBICIDE | NUTURF AUSTRALIA PTY LIMITED | EC |
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 740 | 2,2-DPA 740g/kg |
| Avadex BW | Tri-allate 400g/L |
| Avadex Xtra | Tri-allate 500 g/L |
| Bensulide | Bensulide 410g/L |
| Eptam | EPTC 720g/L |
| Flupropanate 745 | Flupropanate 745g/L |
| Molinate 960 | Molinate 960g/L |
| Saturn EC | Thiobencarb 800g/L |
| Tramat 500 SC | Ethofumesate 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.