Flies

both directly and indirectly. The type of damage depends on the species of the flies. Direct damage is the immediate result of larvae feeding on root hairs [...] nuisance, are particularly small flies of the families Sciaridae ( sciarid flies ) and Ephydridae (shore flies). The larvae of these insects generally live on [...] their large number. Larvae of flies of the family Keroplatidae (mainly Lyprauta sp.) can cause damage in potted orchids. The Spotted Wing Drosophila has

Tarnished plant bug

General The lygus bug (or tarnished plant bug) is native to North America, and it is especially common across the eastern half of the continent, from northern [...] Plants develop split-stem lesions; Nodes swell and internodes become elongated; The number of vegetative branches increases and plants develop multiple [...] boasts at least 385 different host species, the majority of which belong to the plant subclasses Rosidae and Asteridae . Producers can help prevent infestations

Greenhouse whitefly

found on the oldest leaves. The adult emerges from the pupa via a T-shaped fissure. The adult whiteflies can usually be found in the top of the plant and [...] influence the development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth [...] adult. The larvae are found on the underside of young leaves and have an oval shape. The first instar larvae (crawlers) are mobile, whereas the rest of the

Cranberry

America, namely the central and eastern part of Canada and the northeastern and north-central areas of the United States. This cranberry is also found in [...] in certain regions along the Pacific Coast of North America and parts of Europe. This species of cranberry belongs to the subgenus Oxycoccus and genus [...] species of cranberry is also referred to as large cranberry, American cranberry or bearberry. The cranberry is indigenous to specific parts of North America

Potato/tomato psyllid

latter causing the greatest concern and proving difficult to control. In light of this, the export of fruit from susceptible crops to some parts of Europe, and [...] growth, weakness in the new leaves, chlorosis/reddening or purple colouration of the leaf bases and internodes, and poor-quality fruit. The bacterium Candidatus [...] very harmful to the affected crops. Lifecycle and appearance of the potato/tomato psyllid The eggs are egg-shaped with a bright orange-yellow colour. They

Corn rootworm

year. The pest overwinters in the soil in the egg stage. Egg hatching start in the middle of May and continues until the begin of July, with the presence [...] of the female flowers, can cause flower abortion and, in the case of heavy infestations, significantly reduce the number of seeds. During the milk and [...] presence of larvae peaking around the middle of June. The whitish-coloured larvae move around in the soil, feeding on the maize roots. Their development lasts

Tobacco whitefly

peppers, yellowing of the flower stalks in gerbera, and serious yellowing of the leaves of French beans. Other symptoms include the appearance of chlorotic patches [...] adult. The larvae are found on the underside of young leaves and have an oval shape. The first instar larvae (crawlers) are mobile, whereas the rest of the [...] flattened on the leaf. The fourth larva stadium develops into a yellow, almost circular so called pupa, in which the red eyes and white wings of the adult are

Shore fly

flies of the genus Scatella are a common greenhouse pest found throughout the United States, Canada and northern Mexico. In Europe and Asia, the species [...] pest because the flies : Leave their feces (as black flecks) on the foliage of ornamentals or food crops, causing cosmetic damage. Can develop quickly into [...] soil, pots, benches, and other surfaces and the female disperses her tiny (0.1 mm) eggs on the surface of the plant growing medium. Short, leathery, tra

Cannabis aphid

states and parts of Canada. The cannabis aphid closely resembles the hop aphid ( Phorodon humuli ), to the point that microscopic analysis of the head is required [...] Damage symptoms The cannabis aphid is a sap sucker, like all aphids , and affected plants are damaged by the loss of this vital fluid. The following damage [...] light green or brown with dark green stripes running the length of the body. The winged forms have a dark head and thorax. Cannabis aphids have long antennae

Northern Corn Rootworm

feed on the foliage, pollen, silks and developing kernels of corn, with the following consequences: When corn silks are cut all the way back to the ear and [...] diapause; the eggs of “semivoltine” Diabrotica barberi remain dormant in the soil for two winters. This allows the larvae to effectively skip the field’s [...] function, reducing the amount of water and nutrients available to developing corn plants, affecting grain yield. Feeding damage can result in the following c