• Sciarid flies

  generally do little harm to healthy plants, sciarid flies are particularly problematic in cuttings and other young growing plant material. Damage symptoms The [...] diseased to healthy plants. Direct damage is the immediate result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on [...] pathogenic fungi. Because the larvae move very little, plant death is generally local. Young plants that are kept humid and well-watered are particularly

• Tomato leafminer

  turn chestnut and dark brown shortly before adult emergence. Adult moths of the tomato leaf miner ( Tuta absoluta ) are grey-brown with filiform antennae [...] species . The main host is tomato but it also feeds on other solanaceous crop plants including potato, eggplant, capsicum pepper and tobacco as well as weeds

• European red mite

  pear, plum and cherry). However, it can attack a large scale of other woody plants and is occasionally a problem on roses and other ornamentals of the family [...] symptoms Feeding of European red mites on leaves of trees causes initially brown spots on the leaves and when these coalesce the leaves loose colour; this [...] the egg stage; the “winter eggs” are laid in the wooden parts of the host plants in autumn.

• Circular scale

  n are dark-purple to reddish-brown or black spots with paler margins, on both surfaces of shaded leaves of the host plant. Life cycle and appearance of [...] it occurs in greenhouses. In addition to citrus, it occurs on many other plants. Damage symptoms Chrysomphalus aonidum has a preference for humid environments

• Eretmocerus eremicus

  Suspend the cards in the crop, if possible approximately 75 cm under the plant head Avoid to hang cards at places exposed to direct sunlight The dosage [...] to the particular situation. Start introduction preventively soon after planting of the crop. Introduction rates typically range from 1-10 per m2/release [...] beneath the larvae. The egg initially appears transparent, turning light brown after two to three days, and hatches when the whitefly reaches its fourth

• Maximize pollination in tomato

  setting. Maintaining plant health To maximize pollination success, it is essential to prioritize the health of your tomato plants. Various factors, such [...] bumblebee's jaw imprints on the flower, commonly known as bite marks, turn brown. These bite marks serve as indicators to assess the bumblebees' pollination [...] extreme growth, climate conditions, and chemical influences, can impact plant health and reduce the number of healthy flowers. Regular monitoring, appropriate

• Bean seed fly

  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 [...] emerged roots and cotyledons. Plants that survive are weak and less tolerant to subsequent attacks by other pests and plant pathogens. This feeding activity [...] dark brown body with clear wings. The larvae, on the other hand, are small white maggots that can be found near the base of affected bean plants. You can

• Powdery mildew

  penetrates the plant cell and takes up nutrients from the epidermal layer of plant cells. Most of the fungus remains on the outside of the plant surface. On [...] provide excess nitrogen since this promotes the disease Prevent plant diseases by optimizing plant potential and crop resilience. [...] Leveillula. Damage symptoms Powdery mildew symptoms are fairly similar in all plant-pathogen combinations. The symptoms are white fluffy colonies, first and

• Thrips

  fliers and can move quickly between plants. They are often found on the undersides of leaves, where they feed on plant sap. Damage: Thrips can cause damage [...] fruits by feeding on plant tissue. This can result in distorted growth, discoloration, or scarring. They may also transmit plant viruses. Recognise thrips [...] the empty cells become desiccated and the adjacent cells turn brown. The vigour of the plant is also reduced by loss of chlorophyll. With a serious infestation

• Rose aphid

  females of the rose aphid are 1.7-3.6 mm long and green or deep pink to red-brown. The antennae and sometimes the head is dark in colour. The siphunculi are [...] by aphids. In summer, winged aphids spread the infestation to other rose plants and sometimes also to secondary hosts. Colonies are often present on rose