2025
In the protection of soybean from weeds, diseases and pests this year, the best result was demonstrated by the variant that included soil-applied protection using metribuzin and clomazone, and a double application of fungicide and insecticide.
This was reported to SuperAgronom.com by Serhii Ivaniuk, agri-technology development manager in the Central region of LNZ Group.
As part of the LNZ Hub, which was held this year in the Cherkasy region, the specialists set up trial plots testing soybean protection schemes to determine the most effective ones. In total 25 trial plots were laid out.
In the studies soybean yields of 1.8 to 2.5 t/ha were obtained depending on the scheme, whereas on the control plot — 0.8 t/ha. The specialist added that this year overall was not favourable for the growth and development of soybean, which is explained by the cool weather at the start of plant development and subsequently by critical periods in terms of moisture availability and high temperatures, above 32 °C during grain filling. Yet the difference compared to the control is visible.
The soil scheme using the products Matar (metribuzin) at a rate of 0.5 l/ha and Clutter (clomazone), 0.2 l/ha provided a soybean yield 1.65 t/ha higher compared to the absolute control (without herbicides — 0.8 t/ha).
Regarding fungicide-insecticide protection, for the first application on soybean they used azoxystrobin and cymoxanil (Ultralin, 0.5 kg/ha) in order to control downy mildew, in combination with the insecticides Presto (lambda-cyhalothrin, clothianidin) and Bombardier Duo (imidacloprid, lambda-cyhalothrin).
For the second application they used the fungicides Dot, 0.5 l/ha (cyproconazole, propiconazole) and Salto, 1 l/ha (thiophanate-methyl), in combination with the insecticide Presto (lambda-cyhalothrin, clothianidin) to control pests. There was an additional application of an insecticide against lepidopterans Kairos (flubendiamide) and Cyrkul (lambda-cyhalothrin).
"The specifics of this year in terms of soybean pests are as follows: an isolated occurrence of spider mite, an almost complete absence of the painted lady, but at the same time an epidemic of lepidopterans was observed — the gamma moth, the meadow moth, the acacia leafroller and the soybean pod borer. It did not do without damage to the soybean by the diamondback moth, which migrated from rapeseed volunteers to the soybean," summed up Serhii Ivaniuk.
Source: Superagronom.com
