Large blackberry aphid

General The large blackberry aphid, Amphorophora rubi , is very similar to the large raspberry aphid Amphorophora idaei . As both aphid species are host [...] Damage symptoms High populations of large blackberry aphids can reduce yield. Life cycle and appearance of Large blackberry aphid Aphids have a complex [...] host plant is the simplest method to distinguish these two species. The large blackberry aphid is widely distributed in Europe and also established in

Large raspberry aphid

General The large raspberry aphid, Amphorophora idaei, is the most important aphid species found on raspberries in Europe. It only feeds on raspberry. [...] Damage symptoms Large raspberry aphids rarely reach populations that are high enough to reduce yield by direct feeding damage. The major problem is the [...] of various raspberry viruses by the aphids. Life cycle and appearance of Large raspberry aphid Aphids have a complex life cycle, with both winged and wingless

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

Mottled arum aphid

because they produce large amounts of honeydew, which provides an excellent substrate for the growth of black sooty mould. Large areas of mould covering [...] chrysanthemums, Begonia and Fuchsia, and also sweet pepper. Damage symptoms Large colonies of mottled arum aphids can greatly reduce plant vigour and kill [...] with black cross bands behind the head, broken along the midline, and a large horseshoe-shaped spot on the back of the abdomen. These black markings can

Flowering potted plants

the most common species are: Poinsettia is well known and popular for its large red, white and green leaves, especially around Christmas. Begonia is a perennial [...] belonging to the family of Crassulaceae . Hibiscus is well known for its large, ornate flowers which are trumpet-shaped. These flowers have five or more

Olive scale

ornamental crops can also be affected. Damage symptoms Olive scales produce large amounts of honeydew causing build-up of sticky deposits on nearby surfaces [...] attendant ants and sooty moulds grow on the sugary deposits. Removal of large quantities of sap debilitate the plant and can cause wilting, desiccation

Caterpillars

butterflies and moths. Butterflies and moths form the order Lepidoptera, a very large group with more than 150,000 species, that are easily distinguishable from [...] contrast, the caterpillars have biting and chewing mouthparts and can devour large amounts of plant tissue. Many species cause damage to crops. The most harmful [...] to consumption of the plant, caterpillars also spoil the plant with the large quantities of frass they leave behind. Solution Finder Find solutions for

Cabbage moth

symptoms Large caterpillars feed mainly on the youngest leaves, producing skeletonized leaves, holes and frass on leaves. The caterpillars destroy large numbers [...] colour from green or brown to black. In younger instars, the relatively large head capsule is conspicuous. In older instars, the lighter colour of the

Cut flowers

origins in Asia and North and South America. Some species have developed into large trees, others into small compact shrubs. In recent decades, the Hydrangea [...] that originates from Central and South America. It is a bulb plant from the large family of the Amaryllidaceae, the narcissus family. The Hippeastrum comes

Greenhouse whitefly

larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the [...] the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking out [...] honeydew. This can have the following consequences: If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result