• Mealybugs and scales

  scales, produce no honeydew. They feed by sucking the contents of epidermal cells, into which they inject toxic substances that cause yellow, red or brown

• Rhyzobug FAQ

  inserting its mouthparts deep into the plant tissue and sucking the parenchyma cell sap. As a severe infestation occurs, the leaves show characteristic yellow

• Laeveld_Agrochem_GROEI_20_-_Winter_2022.pdf

  capable of depositing silica below the cell walls. This increases cell wall strength and reduces the risk of cells collapsing or bursting, further guarding [...] PLANTS Potassium Potassium plays an important role in the regulation of plant cell osmotic potential, which includes the opening and closing of the stomata [...] by potassium. It is also responsible for sugar export from the mesophyll cells to the phloem, making it important for sugar transport to the developing