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 [...] of bean seed fly infestation include: Wilting or yellowing: Infested bean plants may exhibit wilting or yellowing of leaves, particularly in young seedlings

Loose smut of wheat

of seeds from infected fields for further cropping Prevent plant diseases by optimizing plant potential and crop resilience. [...] the seed germinates, the mycelium of the fungus grows upwards inside the plant into the growing tip and the seed primordia. It only becomes visible after

Loose smut of barley

of seeds from infected fields for further cropping Prevent plant diseases by optimizing plant potential and crop resilience. [...] the seed germinates, the mycelium of the fungus grows upwards inside the plant into the growing tip and the seed primordia. It only becomes visible after

Cut flowers

Hippeastrum is the Latin name for a bulbous plant that originates from Central and South America. It is a bulb plant from the large family of the Amaryllidaceae [...] a bulb as a cut flower or sold as a pot plant. Freesia : The freesia is a herbaceous perennial flowering plant from the Iridaceae family. The cultivated [...] About Many plants with an ornamental value are specially grown as cut flowers. This concerns various types. Origin, cultivation method and substrate differ

Black bean aphid

the transmission of plant viruses. Infestations start usually at the younger parts of the plant but can spread all over the plant. Nymphs and adults extract [...] 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 [...] early enough in the season, the death of young plants. Retarded growth and defoliation reduce yield. Plant sap is rich in sugars, but has a low protein content

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

Mottled arum aphid

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 produce [...] and also result in an unattractive plant with a much lower market value. Neomyzus circumflexus can also transmit plant viruses. Life cycle and appearance

Oleander aphid

principal host plant, oleander. Damage symptoms The colonies of bright yellow aphids can easily be seen on the shoots of the host plants. The damage caused [...] called the milkweed aphid, is a common pest of several important ornamental plants in the families Apocynaceae and Asclepiadaceae. It is commonly found feeding [...] deformed. Repeated heavy infestation throughout the year can lead to stunted plant growth. Life cycle and appearance of Oleander aphid The oleander aphid is

Greenhouse whitefly

sap from the plant leaves and secreting honeydew. This can have the following consequences: If the population is very large, feeding on plant sap can affect [...] found in the top of the plant and on the underside of young leaves, where they deposit their eggs. When shaking infested plants, adults will first fly, [...] tropical and subtropical America, probably Brazil or Mexico. Hundreds of plant species from different families serve as suitable hosts for this whitefly

Herbs

leafy green or flowering parts of a plant, which can be used fresh or dried. Spices derive from other parts of herbal plants and are often dried seeds, berries [...] About Herbs are actually all plants which are used as food ingredient, natural medicine or fragrances. They often have savory or aromatic characteristics [...] and fruits. Botanically speaking, ‘herb’ is synonymously to ‘herbaceous plant.’