Hemispherical scale

Saissetia coffeae Hemispherical scale General The hemispherical or helmet scale, Saissetia coffeae , occurs widely in tropical regions and in greenhouses [...] infestation is particularly severe do individual scales appear on stems, branches and twigs. Damage symptoms The scales present are usually quite easy to see as [...] ficus, oleander and carnation. Life cycle and appearance of Hemispherical scale An adult female of S. coffeae has a hemispherical form with a smooth surface

Circular scale

initially white scales. Circular scales reproduce sexually. Adult females lay 50-150 eggs under the scale. Eggs hatch under the scale and the crawlers [...] Chrysomphalus aonidum Circular scale General The circular scale, Chrysomphalus aonidum is a tropical species, native to the Oriental region but it has [...] Life cycle and appearance of Circular scale Female nymphs and adults have flat to moderately convex, circular scales up to 2 mm in diameter with a slightly

Oleander scale

Oleander scale Adult oleander scales are a greyish, dirty white or yellowy colour, round in shape, with a scale whose apex is off-centred. This scale resembles [...] Aspidiotus nerii Oleander scale General Aspidiotus nerii , the oleander scale or white scale belongs to the Coccoidea and has an almost worldwide distribution [...] and high mortality in crawlers. Damage symptoms Scale infestation can be seen by the appearance of the scale armour on stems, leaves and fruits of hosts.

Boisduval scale

of Boisduval scale is the presence of the scales on upper and lower leaf surfaces, fruits, and stems of plants. On palms, Boisduval scales are normally [...] damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most important one. The Boisduval scale, Diaspis boisduvalii , occurs throughout [...] feeding causes necrosis of tissue at the feeding site. In orchids, this scale tends to prefer the leaf midrib and the portion of the petiole that is covered

Olive scale

General The olive scale, Saissetia oleae , is a cosmopolitan pest of citrus and olives and occurs widely in tropical regions and in greenhouses throughout [...] citrus. Many ornamental crops can also be affected. Damage symptoms Olive scales produce large amounts of honeydew causing build-up of sticky deposits on [...] desiccation of tissues and dieback. Life cycle and appearance of Olive scale Young females are oval, 3-6 mm long and almost flat. Their shield is dark

Mealybugs and scales

Hemiptera Mealybugs and scales What are mealybugs & scales? Mealybugs (family Pseudococcidae), soft scales (family Coccidae) and armoured scales (family Diaspididae) [...] females are wingless and immobile, and covered with a hard scale (armoured scales and soft scales) or with waxy threads (mealybugs). They suck the sap of [...] particularly sensitive to soft scales, as are oleanders and orchids. Armoured scales, unlike mealybugs and soft scales, produce no honeydew. They feed

Cottony cushion scale

cushion scale As with all scale insects, the females do not have wings and look similar to the immature stages. Immature cottony cushion scales have black [...] Icerya purchasi Cottony cushion scale General The cottony cushion scale, Icerya purchasi , is considered to have originated in Australia. It was accidentally [...] example of successful classical biological control. The cottony cushion scale has subsequently spread widely through most of the tropical and subtropical

Brown soft scale

Coccus hesperidum Brown soft scale General The brown soft scale Coccus hesperidum is very common in tropical and sub-tropical regions and is also a common [...] palms, ferns and orchids. Life cycle and appearance of Brown soft scale The scale of the female is flat, usually an elongated oval shape, 3-4 mm long [...] light grey in colour, with dark brown speckles or spots. The colour of the scale darkens as the female ages. The size, shape and characteristics of the female

Limonica: breakthrough in large-scale production of a complex predatory mite

Rhyzobug

species of armoured scale insects. Mode of action Adults and larvae feed on all stages of armoured scale insects. Visual effect Small scales are consumed entirely [...] Find a Koppert dealer For the control of armoured scale insects Feeds on all stages of armoured scale insects Can be used at the first signs of pest presence [...] presence Share product : For the control of armoured scale insects Feeds on all stages of armoured scale insects Can be used at the first signs of pest presence