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

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

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

Pea blight, leaf and pod spot

years with non-host crops Bury or remove crop debris Prevent plant diseases by optimizing plant potential and crop resilience. [...] General Ascochyta pisi is a fungal plant pathogen that causes A scochyta blight on pea (leaf blight or pea blight) and lesions of stems, leaves, and pods

Leaf stripe

barley until soil temperature is higher than 12-15 o C Prevent plant diseases by optimizing plant potential and crop resilience. [...] which makes it look shredded. This is typical for this disease. Infected plants may be stunted and heads may be distorted and failing to emerge from the

Tomato

The tomato plant ( Solanum lycopersicum) belongs to the nightshade family of Solanaceae . The tomato is the edible fruit of this plant. The plant is native [...] native to Central and South America and the tropical highlands. Tomato plants usually grow to a height of between 1-3 metres (or 3-10 feet). Their stem is [...] ate tomato types are so-called ‘tender’ or ‘half-hardy’ perennials. The plants die every year in temperate climate, but in greenhouses they can sometimes

Potato

‘potato’ ( S olanum tuberosum ) is used to refer to the plant itself or its edible tuber. The plant is an herbaceous perennial and came to Europe from Latin [...] rice. Potato plants grow up to some 60 cm tall. Its leaves die after flowering, fruiting and the development of the potatoes. The plant’s flowers vary [...] blue, to purple and have yellow stamens. After the flowering phase, the plants grow small, green fruits which look like cherry tomatoes and contain about

Cucumber

cultivated plant that belongs to the gourd family of Cucurbitaceae . The cucumber originates from South Asia, more particularly in India. The plant’s cultivation [...] on most continents. The cucumber plant is a creeping vine that grows up trellises or other supporting frames. The plant supports itself with thin, spiraling [...] spiraling tendrils. The cucumber plant has large leaves and it produces an elongated, cylindrical fruit that may become as long as 60 cm or 24 inches long

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.’

Spider mites and other mites

mite damage Larvae, nymphs and adults cause damage to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce [...] reduced plant growth. As damage increases whole leaves turn yellow, and as more cell sap is removed, the leaf, and eventually the whole plant may die. [...] other mite species can rapidly infest greenhouse and field crops, feeding on plant cells and causing leaf discoloration, reduced photosynthesis and lower yields