• Small bramble aphid

  Asia. It is a pest of blackberry and is also found on loganberry and rarely on strawberry. Damage symptoms The dense colonies appearing is early summer [...] related to the colour of leaves and stems of the host plants but this does not always happen. Sometimes both colour forms can be found in the same colony. [...] General The small bramble aphid or permanent blackberry aphid, Aphis ruborum , is widely distributed throughout Europe into North Africa and Central Asia

• Yellow rose aphid

  contaminating fruit and ornamental crops. At the same time, photosynthesis in the leaves is reduced, affecting production. The yellow rose aphid is also a vector [...] of Asia and South America. It attacks plants of the family Rosaceae and is a pest of strawberries and roses. Damage symptoms The yellow rose aphids usually [...] leaves. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving

• Mottled arum aphid

  green 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 [...] Begonia and Fuchsia, and also sweet pepper. Damage symptoms Large colonies of mottled arum aphids can greatly reduce plant vigour and kill the plant through [...] General The mottled arum aphid, Neomyzus circumflexus , has a cosmopolitan distribution and a wide host range. In temperate climates it is primarily a

• Charcoal rot

  reported. The density of the microsclerotia in the soil is directly related to disease incidence. Within 24 hours the fungus infects the roots of the host by [...] germ tubes. During the next two days, necrotic spots occur on the roots and the fungus spreads into the cortex and vascular tissue. In the infected host tissues [...] stunting of plants and drying and death of older leaves. The youngest central leaves usually remain unaffected and stay green. The first symptoms are mostly

• Green peach aphid

  different viruses and is thus rightfully feared by many growers. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones [...] contaminating fruit and ornamental crops and rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting [...] As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season, the death of young

• Mediterranean fruit fly

  hatching, the larvae feed on the flesh of the fruit. As each fly lays several eggs in a fruit and different flies may lay eggs in the same fruit, the number [...] black mouth hooks. The puparium is 4-5 mm long, yellowish brown to reddish brown and barrel-shaped. The eggs are laid below the skin of the host fruit. After [...] General The Mediterranean fruit fly ( Ceratitis capitata ) is widespread in Africa, the Mediterranean basin and South America. Ceratitis capitata is a highly

• Black bean aphid

  Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise [...] contaminating fruit and ornamental crops. At the same time, photosynthesis in the leaves is reduced, affecting production. Life cycle and appearance of Black [...] presence in the crop. The black bean aphid is dark olive green to black with black bands across the back. The two cornicles (or siphunculi) are short and usually

• Tobacco aphid

  brown-black head and thorax and a reddish abdomen. There is a dark brown spot on the abdomen and several transverse black bands across the body. The antennae are [...] chrysanthemum, and various pot plants and cut flower crops. Damage symptoms Nymphs and adults extract nutrients from the plant and disturb the balance of growth [...] contaminating fruit and ornamental crops and rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting

• Glasshouse potato aphid

  deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop can cause [...] laid) and holocyclic (winter eggs are produced) lifecycles. There is no alternation of hosts, and the two types of life cycles occur on the same host plant [...] their presence in the crop. The wingless adult stage of the greenhouse potato aphid is rather squat, of medium size (1.8 - 3.0 mm long) and oval in shape.

• Cotton aphid

  virus. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving [...] contaminating fruit and ornamental crops and rendering them unsuitable for market. At the same time, photosynthesis in the leaves is reduced, affecting [...] melon, pepper and many ornamental plants such as chrysanthemum and kalanchoe. The cotton aphid ( Aphis gossypii ) is distributed throughout the world but prefers