Gerbera

cultivars that differ greatly in size, shape and colour. The main colours are white, yellow, orange, red and pink, but one flower can have petals in varying

Chrysanthemum

flowering plant. Nowadays, a wide range of other colours is available such as white, purple and red.

Cannabis aphid

as a sticky “honeydew” which promotes the growth of black fungal moulds. White skin moults visible on the leaves. Live aphids may be present in visible [...] of small, upright, backward-pointing tubes on the aphid's rear end) are white and almost ⅓ the insect’s body length. Phorodon cannabis usually reproduce

Western flower thrips

the plant tissue with a saw-like ovipositor. Larvae are nearly transparent white or yellowish to orange-yellow, with a large head and bright red eyes. Adult [...] Adult females are very variable in colour. They range from almost white through yellowish orange to almost black. Western flower thrips (Frankliniella o

Powdery mildew

are fairly similar in all plant-pathogen combinations. The symptoms are white fluffy colonies, first and foremost on the upper side of the leaf. In severe [...] appear first and foremost on the upper side of the leaves. In most crops, the white colonies later turn brown or grey. Severely affected leaves may turn yellow

Cabbage leafroller

horizontally over the body. The antennae are thin and of medium length. The moths fly when it is dark. The yellow eggs are laid in batches of 10 to 90 pieces and

Potato

fruiting and the development of the potatoes. The plant’s flowers vary from white, pink, red or blue, to purple and have yellow stamens. After the flowering

Apple

protected by a layer of epicuticular wax. Apples usually have a yellowish-white coloured exocarp. Sometimes their flesh is also pink or yellow.

Cranberry

usually grows on the ground surface first and then ascends. The plant produces white or pink flowers and afterwards sour-tasting red or pink berries. The size

Feltiella acarisuga

Finally, white spots appear on the body. A fully grown larva is about 2 mm long. At the end of the last larval stage, the larva spins a white cocoon near [...] or red. Immediately after emerging from the egg, the larva is yellowish white. The eggs and the first larval stages are very difficult to find in the crop