The Formula for Ideal Herbicide Control
The harm caused by weeds to cereal crops can be discussed endlessly. And in the spring period, this is even more pronounced: on one hand, there are weakened crops after winter, and on the other, unstable weather conditions that significantly complicate treatments. Specialists from Ukravit can advise on the criteria for selecting herbicides for winter and spring cereals.
This is reported by AgroReview
“The maximum spectrum of action and a wide ‘technological window’ – this is approximately how the formula for the optimal herbicide for spring weed control in winter and spring cereals sounds,” says Alexander Myglovets, head of the agronomy department at Ukravit. “Such requirements are primarily dictated by weather factors, as it is difficult to find the optimal temperature window for spraying in changing spring conditions, as well as by the species diversity of weed vegetation in the field. Another issue is volunteer plants, which can become an unwanted consequence of growing sunflowers or rapeseed in previous years, turning from a profitable crop last year into a dangerous competitor for cereals for light, moisture, space, and nutrients. To take all these factors into account and ensure reliable control of weed vegetation, a herbicide that is not only powerful but also extremely flexible in application is required.”
If broadleaf weeds, particularly sunflower volunteer species, prevail in the crops, Alexander recommends using the three-component herbicide Laplas (tribenuron-methyl, 375 g/kg + florasulam, 140 g/kg + flumetsulam, 125 g/kg). Its active substances have a systemic action and block the enzyme acetolactate synthase – a key enzyme in the biosynthesis of essential amino acids (isoleucine, leucine, and valine). They quickly move within the plant to areas of highest meristematic activity – growth points, resulting in the cessation of cell division, growth of shoots, and root systems of weeds. Laplas controls an extended spectrum of broadleaf weeds: ragweed, mustard, white goosefoot, and overgrown cleavers, among others. Additionally, it effectively destroys ALS-inhibitor-resistant volunteer plants.