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// // // Potato aphid (Aulacorthum solani)

Potato aphid (Aulacorthum solani)

Aulacorthum solani

A widespread pest that harms many crops: potato, tomato, pepper, eggplant, melon, cucumber, ornamentals.

 

Damage

The pest harms all crops grown in the greenhouse. A pest settles, both on the face and on the underside of the leaves, as well as on the stems. Leaves affected by aphids acquire chlorotic spots and can be deformed. With a significant development of the colony of aphids on the plant, leaves are covered with sugary secretions, on which, subsequently, the sooty fungus develops. Potato aphids transmit viruses: A, F, M, Y, aspermy disease of tomato.

How to recognize

The body size of a wingless individual is 2.2-2.5 mm, winged - 2.5-3 mm. Wingless females have a green color and an egg-shaped body. The body is glossy. Winged females have a light or dark brown head and chest, abdomen of light green color with brown transverse bands. Antennae longer than body.

Life cycle

In greenhouse it develops as an incomplete cyclic species. For a season the species is capable of giving up to 15 generations. It hibernates in plant remains, on weeds and in greenhouses.

Preventive measures and biological control

To control potato aphids in greenhouses, it is possible to use such entomophages as: Adalia bipunctata, common lacewing (Chrysoperla carnea).