Potato aphid

occurs early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low [...] potato aphid and is particularly visible in the nymphs. Immatures have a light dusting of whitish-grey wax. The aphids instantly fall off the plant when [...] the same time, photosynthesis in the leaves is reduced, affecting production. Life cycle and appearance of Potato aphid Aphids have a complex life cycle,

Shallot aphid

shallot aphid is cosmopolitan and widely spread in Europe. Damage symptoms Feeding of shallot aphid on strawberries invokes a strong host plant reaction [...] the aphids often occur at the end of the storage period causing malformation of new plants. Life cycle and appearance of The shallot aphid Aphids have [...] towards the apex. The shallot aphid does not alternate to another host plant for overwintering and there is no sexual stage in the life cycle. No eggs are

Cannabis aphid

General Although it was first described in 1860, the cannabis aphid ( Phorodon cannabis ; a.k.a. bhang aphid or hemp aphid) is a very new pest to North America [...] visible on the leaves. Live aphids may be present in visible colonies; aphids often settle inside buds to feed. Slowed plant growth; wilted, yellowing leaves [...] Cannabis aphid Adult cannabis aphids are between 1.8–2.7 mm long. They are normally wingless but a winged form appears in late summer. Early in the season

Rose aphid

colonies of aphids can build up on roses in spring and summer; sometimes shoots are completely covered by aphids. In summer, winged aphids spread the [...] appearance of Rose aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, re [...] siphunculi are black and bent outwards. The rose aphid usually overwinters on rose bushes in the egg stage, although in mild winter some adults may continue to

Glasshouse potato aphid

potato aphid ( Aulacorthum solani) is a native European species of aphids , seriously affecting crops of sweet pepper in particular. These aphids further [...] of life cycles occur on the same host plant. The aphid can overwinter not only in greenhouses, but also outdoors in sheltered places. [...] potato aphid (Aulacorthum solani) pierces the leaves or the fruit of sweet pepper it secretes a toxic substance, which leads to deformations in the growing

Mottled arum aphid

sweet pepper. Damage symptoms Large colonies of mottled arum aphids can greatly reduce plant vigour and kill the plant through sucking of plant sap. However [...] mottled arum aphid, Neomyzus circumflexus , has a cosmopolitan distribution and a wide host range. In temperate climates it is primarily a pest in greenhouses [...] photosynthesis and also result in an unattractive plant with a much lower market value. Neomyzus circumflexus can also transmit plant viruses. Life cycle and

Tarnished plant bug

overwinter under plant debris, such as dead weeds, leaf litter and tree bark, and become active in early spring. They begin to feed on developing plant buds and [...] buds and flowers of plants, piercing them with their needle-like mouthparts, injecting enzyme-filled saliva to break down the plant tissue and sucking out [...] dimpling; Seeds darken and collapse or shrink; Terminal plant growth is yellowed and distorted; Plants develop split-stem lesions; Nodes swell and internodes

Buckthorn-potato aphid

Buckthorn-potato aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, re [...] can cause growth retardation. Buckthorn- potato aphid does not cause plant deformation. The major problem in potatoes is the transmission of viruses. Life [...] exceed half the body length. The aphids overwinter as eggs on buckthorn. After emerging in spring, the aphids mainly feed on the underside of leaves of their

Green peach aphid

occurs early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield, Plant sap is rich in sugars, but has a low [...] General The green peach aphid ( Myzus persicae subsp. persicae ) is an important insect pest in sweet pepper, tomato, cucumber and many other greenhouse [...] distribution. The green peach aphid ( Myzus persicae subsp. persicae ) is a particularly polyphagous aphid with summer host plants from more than 40 different

Plant Disease Management

living organisms to suppress or control plant pathogens, which are microorganisms that cause diseases in plants. The primary goal of biological control [...] control is set to play a more prominent role in our food production systems. Understanding plant diseases Plant diseases, caused by various pathogens such [...] prevention and control strategies. Learn about plant pathogens Preventing plant diseases Effective prevention of plant diseases involves several key practices