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Bayer Crop Science

Bayer Crop Science is a leading provider of crop protection products and solutions to the agricultural and horticultural industries. We are committed to work with growers, seed companies, distributors and the wider agricultural industry to bring further innovative crop protection solutions to the New Zealand market.

Seasonal updates

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SIVANTO prime – now there’s no escape for destructive establishment pests in forage crops

SIVANTO prime, containing the new active ingredient Flupyradifurone, is now registered and will be commercially available for spring 2025. SIVANTO prime controls the key establishment pests of forage brassicas and fodder beet. Find out more here… More

New Onion Fungicide matches its predecessor

Introduced to Onion growers in 2024, Luna® Experience fungicide continued to deliver the standard for Onion White Rot control, set by its predecessor, Luna Devotion. More

Bayer People

David Weith Bayer Crop Science New Zealand — David Weith

Regional Business Manager, Mid - South Canterbury

David Weith

Regional Business Manager, Mid - South Canterbury

David joined Bayer in 1983 and is one of the company’s most experienced and knowledgeable sales managers. Based in New Zealand’s most productive arable region, he works with some of the country’s most talented arable farmers, many who are pushing their crop quality and productivity towards world record yields. Read more

Key pests to watch out for

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Fathen

Fathen (Chenopodium album), pronounced fat-hen and sometimes called fat hen, is one of the most serious weeds of cropping throughout New Zealand. It is an annual that germinates in the spring and early summer and then dies off in the autumn with frosts.

Wireweed

Wireweed (Polygonum aviculare) is a widespread annual with wiry, trailing stems that form mats up to 1 m in width. Wireweed (or wire weed) prefers to germinate in wet soils so it is problematic in winter and in spring sown crops as it can be very competitive and smother crops.

Black Nightshade

Black nightshade (Solanum nigrum) is a significant weed in arable and horticultural crops but it is also common in disturbed pasture. Black nightshade is present throughout New Zealand but less so in the lower South Island.

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