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Молочнохозяйственный вестник, №4 (24), IV кв. 2016
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рефераты
intensive in early May and in the 1-st and 2-nd decade of August what coincides with
the culture growth in May and high nutrition of weevils and new beetles generation in
August (25...30 ind./m
2
). The economic harmfulness threshold (EHT) of the genus
Sitona weevils equals 5...8 beetles per 1 m
2
. In case of Sitona weevils EHT rising it is
treating drug Actellic advisable. The drug is effective in the budding phase with the
normal flow of 1 l/ha. The Actellic efficacy is 98.5-100.0 %.
Электронная Научная СельскоХозяйственная Библиотека