Impact on the Environment
Many desirable crops and ornamentals are very sensitive to Grazon Extra so care must be taken when applying the product to ensure that there is no spray drift on to desirable plants or soil containing roots of desirable plants. A light but steady breeze directing any spray mist away from desirable plants is the ideal spraying condition. Avoid application when the wind direction is towards desirable plants or there is no breeze at all. In seemingly still conditions, spray mist can drift for long distances and in many directions, which can cause plant damage when it settles.
Plants susceptible to Grazon Extra include (but are not limited to) fruit trees, grape vines, legumes (pea, beans, lucerne etc.), vegetables, potatoes, roses, shade trees and tomatoes.
Residues of Grazon Extra can remain active in the soil for many months with the longevity affected by use rate, soil type, soil organic matter, temperature and moisture. Care therefore needs to be taken when planting new plants, crops or trees into areas where Grazon Extra has been sprayed to ensure that no residues remain active. Details of how to conduct a suitable soil bioassay to check for residue levels can be found on the Grazon Extra label.
Residues of Grazon Extra can also remain in treated plant material for extended periods so do not use treated plant material to make compost or mulches. Any manure from animals grazing on treated pastures within six months of application of Grazon Extra should not be sold off-farm or used as compost within gardens.
Grazon Extra may be used around waterways but spray should never be applied to water, or soil within a dry water course, or allowed to drift into or drip off treated foliage into water.