plant pests - Page 3 of 3

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Ra Re Rh Ro Ru

Rock flour

Rock flour consists of finely ground volcanic rock and contains many minerals.
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Root knot nematode

Root knot nematodes live underground and attack plant roots.
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Rose

Rose, shrub, belonging to the rose family. Wild or botanical roses have their origins in the temperate regions of the northern hemisphere.
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Rose black spot

Rose black spot: This fungus causes the characteristic star-shaped spots on roses and laurel.
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Rose Chafer

Rose chafer, these + 2 cm large beetles belong to the scarab beetles.
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Rose Rust

Rose rust, this fungus causes the brown-black fungal spots on the leaves of roses in autumn and winter.
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Rosemary beetle

The rosemary beetle belongs to the leaf beetles. These 8 mm large striking beetles are exotic; Southern Europe is their natural habitat. Continue reading

Many fungi on plants are called “rusts”. However, one rust is not the other: asparagus rust (Puccinia asparagi), Bean Rust (Uromyces appendiculatus – Uromyces phaseoli), Violet Bramble Rust (Phragmidium violaceum), hypericum rust (Melampsora hypericorum), leek rust (Puccinia porri), Coleosporium tussilaginis, Tongues of Fire (Gymnosporangium clavariiforme), rose rust (Phragmidium mucronatum), leaf spot (celery) (Septoria spp), spruce needle rust (Chrysomyxa) and white rust (Albugo candida).