A warm April and May have seen daisies and dandelions popping up everywhere. But while it is tempting to get the sprayer out, the uptake of the herbicide may not be successful unless perfect weather, water and spayer conditions are present, Abel said.
This includes the correct nozzle selection giving the right water volume for the herbicide being applied.
If temperature is going to drop over night after an application, then scorch is likely to take place. The spray droplets are on or blown to the tips of the grasses or crop and when frost forms, that is what causes the scorch effect.
According to Abel this phenomenon has been seen in many fields this year after early spray applications by farmers. Scorch will severely set back grass growth so it is important for a spring flush to arrive before spraying takes place.
"When the right time does come for applying selectives; then a tank mix with a soluble fertilizer should be considered to get the grass sward really moving. The pH of the water being used is so important and buffers should always be used to bring the water acidity to the correct level.
"Manganese and phosphites that are quickly available to the plant through the leaf would be worth looking for. It must be brought to your attention that this year will be the last time that the three-way mixes of phenoxys that we have been used to will be able to be applied."
Abel added that 2017 will see "a big turn-around in terms of cost when it comes to weed control in fine and amenity turf areas".