2,4D 860G/L SL

Post-emergence control of annual and perennial broad-leaved weeds in cereals, maize, sorghum, grassland, established turf, grass seed crops, orchards (pome fruit and stone fruit), cranberries, asparagus, sugar cane...
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Chemistry Identity
CAS NO. : 94-75-7

Molecular Structure


Toxicity
2,4-D is a WHO Class II 'moderately hazardous' pesticide. This places it in the same class as endosulfan, lindane, paraquat and toxaphene. It has an LD50 of 375 mg/kg in the rat with evidence suggesting a similar level of toxicity in humans.
Occupational exposure to 2,4-D has produced serious eye and skin irritation. Other symptoms of 2,4-D poisoning include nausea, weakness and fatigue, and in some cases neurotoxic effects including inflammation of nerve endings.  Some medical reports from practitioners who have treated victims of acute exposure to 2,4-D mention severe and sometimes long lasting or even permanent symptoms. These include, as well as those listed above, diarrhoea, temporary loss of vision, respiratory tract irritation, confusion, numbness and tingling, bleeding and chemical hypersensitivity(.
A recent review of 2,4-D by the UK Advisory Committee on Pesticides (ACP) noted that

Storage
Keep in cool and dry place, for 2 years.

Application
BiochemistrySynthetic auxin (acting like indolylacetic acid).
Mode of actionSelective 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.

Uses
Post-emergence control of annual and perennial broad-leaved weeds in cereals, maize, sorghum, grassland, established turf, grass seed crops, orchards (pome fruit and stone fruit), cranberries, asparagus, sugar cane, rice, forestry, and on non-crop land (including areas adjacent to water), at 0.28-2.3 kg/ha. Control of broad-leaved aquatic weeds. The isopropyl ester can also be used as a plant growth regulator to prevent premature fruit fall in citrus fruit.
Technical sheet
Appearance Light brown liquid
A.I. Content 860 g/L min.
Free phenol, 3 g/kg max.
Water, % **
pH value 7.0 ~ 9.0
Persistent foam(After 1 min, mL) 25 max.
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