• Macrocheles robustulus

  Spread material evenly on soil or planting medium (not on the plastic) The dosage of Macro-Mite depends on climate, crop, planting medium and pest density [...] soil-dwelling insects. The mites appear in and on the soil and at the base of plant stems. Feeding behaviour of Macrocheles robustulus Predatory mites pierce [...] used for the control of the following pests: Sciarid flies (fungus gnats) Thrips Lyprauta larvae The predatory mites feed on larvae of sciarid flies , thrips

• Southern European marshland pyralid

  or in groups of 5 to 10 eggs, overlapping in a tile-like fashion on both the upper and lower surface of leaves close to the veins, or low on the stem or [...] species feeding on a wide range of hosts from 38 plant families. They include ornamental crop plants, such as roses and gerbera, aquatic plants, vegetable crops [...] strata of the crop, sometimes attacking the stem of the plant as well as the leaves. Late instar larvae burrow into soft woody or herbaceous plant stems

• Black bean aphid

  younger parts of the plant but can spread all over the plant. Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones [...] reduce yield. Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein [...] the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early enough in the season, the death of young plants. Retarded

• Stratiolaelaps scimitus (Hypoaspis miles)

  Spread material evenly on soil or planting medium (not on the plastic) The dosage of Entomite-M depends on climate, crop, planting medium and pest density [...] in and on the soil and at the base of plant stems. The reduction of the infestation level occurs at a slow but steady rate. Feeding behaviour of Stratiolaelaps [...] mites appear in and on the soil and at the base of plant stems and offer a sustainable and environmentally friendly alternative to chemical pesticides

• Bean seed fly

  eggs near the base of bean plants, and upon hatching, the larvae burrow into the soil and feed on the seeds and roots of young plants. Larvae mainly attack [...] may fail to emerge or show stunted growth compared to healthy plants. Damage to seeds: Darkened or damaged seeds, as bean seed fly larvae feed on seeds and [...] significant damage. Presence of larvae: Small, white maggots near the base of affected bean plants. These larvae are a clear indicator of bean seed fly infestation

• Cotton aphid

  Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop [...] extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if [...] colour depends on temperature, food source and the density of the population. Large individuals (up to 1.8 mm long) are usually dark green to black, while

• Spider mites and other mites

  these plant mites a magnifying glass is needed to detect them. Plant mites are often found in colonies on the undersides of leaves, where they feed on the [...] The eggs are usually spherical and laid on the underside of leaves or on other parts of the plant. The number of eggs laid by a single female can vary, [...] pairs of legs, except for Eriophyidae which have two pairs of legs. During this stage, the larvae start to feed on plant sap and undergo molting to transition

• Verticillium wilt

  orange-yellow. In the beginning the plant seems to recover at night. The symptoms may occur only in parts of the plant. Cutting the stalk horizontally reveals [...] infects the roots of plants, directly or through wounds caused by for example nematodes. The fungus then grows into the vessels of the plant and produces spores [...] defence mechanism, the plant produces gum in the vessels. The presence of both the fungus and the gum causes the xylem vessels to get blocked, which in turn

• Angular leaf spot

  lesions on the leaves and form a secondary source of infection. They are dispersed by rain, irrigation water or handling of the plants. Infection of the plants [...] are humid, a viscous bacterial exudate forms on the underside of the leaf. This exudate changes to a white film when it dries. Lesions may merge as they [...] most important, but also all types of vascular tissue of the crown can be infected, creating a look similar to that of a Phytophthora fragariae infection

• Yellow rose aphid

  reduce yield. Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein [...] probably of North American origin but is now widely distributed in Europe, North Africa, parts of Asia and South America. It attacks plants of the family [...] extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves. Retarded