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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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Weed control in cereals starts now

With harvest almost complete, and the first cereal crops only 3-4 weeks from planting, now is the time to plan your autumn herbicide programme. In fact, there isn’t any time to lose. More

Vayego now approved to control Apple Leaf Curling Midge, Leaf Roller and Garden Weevil

Vayego® 200SC Insecticide granted label extension for control of Apple leaf curling midge in Apples and leaf roller and garden weevil in Grapes. More

Bayer People

Jonathon Shields Bayer Crop Science New Zealand — Jonathon (Jonno) Shields

Market Development Agronomist

Jonathon (Jonno) Shields

Market Development Agronomist

Based in Christchurch, Jonno’s role covers all of New Zealand and helps bridge the gap between pre and commercial launch of new products. Read more

Recent News

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Let CONVISO ONE make your life simpler

New Zealand dairy farmers are enjoying great returns at the moment and so quality feed is in demand. Fodder beet offers an attractive forage option for dairy farms, delivering high yields of quality, energy rich feed.

Serenade^® Optimum – Getting the best in Apples & Pears for Fire blight

Fire blight, caused by the bacterium Erwinia amylovora, is a destructive disease affecting apples and pears. It manifests as blackened, dead shoots and leaves, resembling fire damage, and can eventually kill the tree.

Emesto^® Prime fungicide registered for in furrow use to control black scurf in potatoes

Newly registered in 2024 by Bayer Crop Science as an in-furrow treatment specifically designed to control black scurf disease caused by Rhizoctonia solani in potatoes.

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Key pests to watch out for

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Beet Rust

Favoured in cool and wet seasons, Beet rust (Uromyces beticola) is commonly seen in beet crops. Characteristic symptoms are raised red pustules on leaves. Severe infestations can lead to leaf loss and reduce yields.

Powdery mildew - Beet

Powdery mildew (Erysiphe betae) is commonly seen in New Zealand beet crops as greyish-white mycelium on leaves. Favoured by hot weather, severe attacks can significantly reduce yields and feed value of fodder beet crops.

Ryegrass - Annual

Annual ryegrass (Lolium multiflorum) is an important cultivated grass species which becomes a very competitive weed when growing in cultivated crops. Generally germinating at the same time as the crop it grows quickly and competes aggressively for space, light, nutrients and water.

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