• Olive scale

  sooty moulds grow on the sugary deposits. Removal of large quantities of sap debilitate the plant and can cause wilting, desiccation of tissues and dieback

• Strawberry aphid

  affecting strawberry plants. Direct damage is caused by the aphids sucking sap from the plant, which reduces the yield and quality of fruit. The leaves do

• Mottled arum aphid

  can greatly reduce plant vigour and kill the plant through sucking of plant sap. However, also at lower densities the aphids can damage plants because they

• Buckthorn-potato aphid

  worldwide distribution. Damage symptoms Direct damage, caused by sucking of sap is rarely seen. Sometimes, large populations build up on potatoes or other

• Cutworms

  older instars will occasionally tunnel into the growing stalk, disrupting the sap flow in the plant. Life cycle and appearance of Cutworms The adults of Agrotis

• Glasshouse potato aphid

  aphids are born as developed nymphs. They immediately start to feed on plant sap and grow rapidly. When reproduction is sexual, the aphids lay eggs that overwinter

• Cottony cushion scale

  forest trees, and ornamental shrubs and trees. Damage is mostly caused by sap depletion; the shoots dry up and die, and defoliation occurs. In addition

• Fit roots for plant health Technical bulletin 2020 EN

  of the plant sap finally tells us which nutrients the plant has consumed. There is a load of evidence that the composition of the plant sap plays a crucial [...] crucial role in plant health. More and more growers are using plant sap analysis regularly, to be sure the plant takes up enough Calcium, Magnesium and trace [...] the food that the pest or disease needs is richly available in the plant sap. Most pest and disease organisms depend for their growth on free amino acids

• Mirical

  population needs time to establish and develop. Mirical can also survive on plant sap, however absence of prey slows down the population build-up significantly

• Tomato

  particular affinity for tomato plants and can stunt their growth by extracting sap from the leaves and stems. Additionally, the Potato aphid ( Macrosiphum euphorbiae [...] soft-bodied insects can be found mostly on the stems where they feed on the sap of tomato plants, causing stunted growth and yellowing of the leaves. Their [...] notorious mite feeds on tomato plants by piercing the plant cells and extracting sap, leading to stippling, yellowing, and ultimately, reduced photosynthesis.