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Grass control in maize even more important this year

12 April 2019

Due to the changing regulations regarding the under-sowing of the catch crop in maize, it is more difficult to continue to control all weed grasses properly. Laudis fits into all under-sowing systems and is therefore the appropriate product.

Grasses, in addition to broadleafs, are a major problem in many of the maize fields. Grasses, such as annual meadow grass, smooth-finger grass and barnyard grass, cost an incredible amount of yield and the quality of maize deteriorates considerably.

Sow directly or at knee height
Direct sowing of the catch crop involves sowing (mainly) reed fescue around the sowing of the maize. This should be done before, during or soon after sowing the maize to achieve the best results. Weed control then takes place over the catch crop and the choice of product must therefore be taken into account.

When mainly Italian ryegrass is sown, this will take place after weed control. This when the corn is about knee height. Here too, the choice of product for weed control is crucial.

Simultaneous sowing of catch crop with maize (13 March 2019). In parts 1 and 2, perennial ryegrass is too developed during cultivation, so sowing is not an option. In part 2, the tall fescue is nicely developed during and after cultivation, this is a good option.​​​​​

Both at the standard dosage of 1,5 liters of Laudis per hectare and at 2,25 liters of Laudis per hectare, the tall fescue continues to grow sufficiently and the sowing of Italian ryegrass at knee height of the maize also grows well.

Sowing a catch crop 2 to 3 weeks after weed control (when the maize is knee height). In part 4 the perennial ryegrass is underdeveloped, sowing is not an option. In part 5, the Italian ryegrass is nicely developed, this is a good option. In part 6, the tall fescue is barely developed, sowing is not an option.

Laudis: powerful on grasses
The strength of Laudis, compared to the means of competition, lies precisely in the grass effect. Grasses such as smooth-finger grass (only control with 2,25 liters per hectare and applied in time), cockspaw and annual meadow grass can still be controlled. The other grass remedies will inhibit the fescue too much or even spray it away.

Is millet a new problem grass?
In addition to smooth-fingered grasses, millet grasses are also an emerging problem in corn cultivation. The millet grass family is an extended family, with the South African, bald, feather and wire millet being the best known. With 2,25 liters of Laudis per hectare, in combination with terbuthylazine-containing products, excellent results have always been achieved on millet grasses (if applied in time).

With the arrival of Capreno and Monsoon Active (these contain the new active ingredient thiencarbazone-methyl TCM), the toolbox for combating the millet grasses has been replenished. Timely control (as with smooth-fingered grass) with Capreno and Monsoon Active on millet grasses remains crucial for a good control result.

In short: pay close attention (very) to the control of all weed grasses in the maize this year.

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