Q.I have a blackberry with strange modules that look like tiny snails they have pus inside but don’t have crunchy shells and there
are hundreds of them on the main stem and ideas please I can send a picture if it would help

BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on May 13, 2019
They appear to be a type of slug, which is, essentially, a snail without a shell.
This article will help you: https://www.gardeningknowhow.com/plant-problems/pests/insects/kill-garden-slugs.htm
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Downtoearthdigs
Answered on May 14, 2019
This is a Scale pest. Isolate the plant from other plants.
Treat with Neem Oil.
https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
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