Mâm xôi

Raspberry Spur Blight

Didymella applanata

Nấm

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Lấy thuốc

Sử dụng ứng dụng Plantix

Tóm lại

Blue or violet spots & spore blisters on the shoots.
Bark bursts open.
Early leaf drop.

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Mâm xôi

Triệu chứng

Blue to violet spots appear on the shoots and the bark bursts open. Subsequently, the spore cushions form blisters on the shoots. The plant drops its leaves early in the year. In spring the affected shoots do not sprout.

Các khuyến nghị

Kiểm soát hữu cơ

Remove infected shoots. After an infection, use a plant fortifier, so the plants are able to fight the fungi. You can choose more resilient varieties, such as Glen Moy, Glen Rosa, Julia, Malling Admiral or Leo.

Kiểm soát hóa học

Fungicides based on Lime Sulfur or Captan/Fenhexamid mixtures can be used.

Nguyên nhân gây bệnh

The pathogen enters the plant with humid spring weather and hibernates in the affected shoots.

Biện pháp Phòng ngừa

Balanced nutrition supply is important.
Injuries should be avoided.
Leave sufficient distance between plants.
Apply plant fortifier.