Florasulam

Common name:

2.4D-ethylhexyl 410G/L +Florasulam 7.4G/L EC 

Chemical name:

2.4D-ethylhexyl 410G/L:   2-ethylhexyl (2,4-dichlorophenoxy)acetate  

Florasulam: N-(2,6-difluorophenyl)-8-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine-2-sulfonamide  

Pesticide category:

Herbicide 

CAS No:

Molecular Formula:

EC

Mode of Action:

2.4D-ethylhexyl: Selective systemic herbicide. Salts are readily absorbed by the roots, whilst esters are readily absorbed by the foliage. Translocation occurs, with accumulation principally at the meristematic regions of shoots and roots. Acts as a growth inhibitor.

Florasulam: Taken up by root and shoots, and translocated in both xylem and phloem

ECOTOXICOLOGY :

2.4D-ethylhexyl: Birds Acute oral LD50 for mallard ducks 663 mg/kg. Dietary LC50 (5 d) for bobwhite quail and mallard ducks >5620 ppm.  Fish LC50 for fathead minnow, bluegill sunfish and rainbow trout greater than solubility in water.  Daphnia EC50 (48 h) 5.2 mg/l.  Algae EC50 for Skeletonema costatum 0.23, Navicula pelliculosa 4.1, Selenastrum capricornutum and Anabaena flos-aquae >30 mg/l. 

Florasulam: Birds Acute oral LD50 for quail 1046 mg/kg. Dietary LC50 for quail and mallard ducks >5000 mg/kg diet. Fish LC50 (96 h) for bluegill sunfish >98, rainbow trout >96 mg/l. Daphnia LC50 (48 h) >292 mg/l. Algae EC50 (72 h) for algae 8.94 mg/l. Bees LD50 (48 h, oral and contact) >100 mg/bee. Worms LC50 (14 d) for earthworms >1320 mg/kg.