Pendimethalin(PM) is a dinitroaniline herbicide, commonly used for the pre-emergence control of seedling grass and broad-leaved weeds in several broad-leaved crops and in corn, sugar cane, and spring wheat. The primary mode of action of all herbicides from this group is by inhibition of cell mitosis that represses the development of roots and shoots.
PM selectivity is based on avoiding contact between the herbicide and the roots of the desired plants. Like all dinitroaniline herbicides, it is highly volatile and undergoes some local leaching in the soil.
Pendimethalin was registered in 1972 for preemergent and post-emergent control of broadleaf and grassy weeds on many crops, including cotton, corn, sorghum, peanuts, rice, beans, peas, wheat, potatoes, soybeans, sunflowers, tobacco, ornamentals, non-bearing fruit, and nut crops and vineyards.
- IUPAC name: N-(1-ethylpropyl)-2,6-dinitro-3,4-xylidine
- CAS No.: 40487-42-1
- Molecular formula: C13H19N3O4
- Molecular weight: 281.3
- State: Orange-yellow crystals.
- Packing: 25kg (providing additional packing as required)
- Mode of action: Selective herbicide, absorbed by the roots and leaves. Affected plants die shortly after germination or following emergence from the soil.
- Application: Control of most annual grasses and many annual broad-leaved weeds, at 0.6-2.4 kg/ha, in cereals, onions, leeks, garlic, fennel, maize, sorghum, rice, soya beans, peanuts, brassicas, carrots, celery, black salsify, peas, field beans, lupins, evening primrose, tulips, potatoes, cotton, hops, pome fruit, stone fruit, berry fruit (including strawberries), citrus fruit, lettuce, aubergines, capsicums, established turf, and in transplanted tomatoes, sunflowers, and tobacco.
Applied pre-plant incorporated, pre-emergence, pre-transplanting, or early post-emergence. Also used for control of suckers in tobacco.