Onion

The onion plant is usually a biennial or perennial plan. When cultivated however, the plant is mostly handled as an annual and harvested at the end of its [...] The onion ( Allium cepa L.) , also referred to as the bulb onion or common onion, is a vegetable. This particular species is the most extensively produced [...] its first production season. Onions are popular and therefore cultivated and used for cooking all around the world. Their flesh is pungent when chopped

Pea leaf miner

(Liriomyza huidobrensis), occurs in a variety of vegetable and ornamental crops. It originates from South and Middle America and has subsequently spread via plant [...] cycle of a leaf miner has the following stages: egg, three larval instars, a pupal instar and the adult fly. Adult leaf miners are small yellow and black [...] females feed or lay eggs, they bore a hole using their toothed ovipositor, usually in the upper side of the leaf. Egg spots are oval and hard to distinguish

Obscure mealybug

growth and causing deformation and / or yellowing of leaves, sometimes followed by defoliation. The overall effect is a reduction of photosynthesis and therefore [...] the males form a dark false pupa followed by a pupa in rapid succession. The actual pupa develops inside a white, cottony cocoon. After a complete metamorphosis [...] other hand, settle on the leaf and begin to secrete wax, moulting to a third instar and then the adult female without a complete metamorphosis.

Tomato leaf miner

cycle of a leaf miner has the following stages: egg, three larval instars, a pupal instar and the adult fly. Adult leaf miners are small yellow and black [...] become a common pest since the 1960’s, particularly in sweet pepper, lettuce, melon, chrysanthemum and gerbera. About Tomato leaf miner Life cycle and appearance [...] females feed or lay eggs, they bore a hole using their toothed ovipositor, usually in the upper side of the leaf. Egg spots are oval and hard to distinguish

Bacterial soft rot, bacterial stem rot

harvest or after that. The pith disintegrates and the stem becomes hollow. Because of the bacterial growth in the pith, the stem seems wet and slimy. Above [...] Above or below the hollow stem the vascular tissue keeps its normal colour. On the fruits, lesions first are small and sunken, water-soaked and light to [...] adjacent to wounds and natural openings at the stem end. Later the fruit becomes soft and lesion contents become liquid. Life cycle and appearance of Bacterial

Western flower thrips

the plant tissue with a saw-like ovipositor. Larvae are nearly transparent white or yellowish to orange-yellow, with a large head and bright red eyes. Adult [...] spotted wilt virus (TSWV) and impatiens necrotic spot virus (INSV). Both viruses affect a wide range of plants, and often a single host plant may be infected [...] occidentalis) can be found on a wide variety of plants, including many vegetable and ornamental crops in greenhouses, and on various weeds. It is an especially

Akanthomyces muscarius

whitefly , thrips and aphids in vegetables, ornamentals , nursery trees and soft fruit in protected cultivation. Mycotal is safe and easy to use and can be applied [...] of whiteflies, aphids, and thrips, providing a natural and environmentally friendly method of pest control in agriculture and horticulture. Best conditions [...] system and disrupt its normal physiological functions. Lecanicillium muscarium is frequently applied as a microbial pesticide in agriculture and horticulture

Rose

species and thousands of different cultivars. The rose is a woody, perennial plant which usually develops as a shrub, climbing or trailing with a stem that [...] rose plant can vary in shape and size, but are often ornate and bright coloured. Colours range from white to yellow, pink and orange to red, the most popular

May beetle

similarities between the adults and larvae of this genus, they are usually treated as a single group, sharing similar habits and biology. The larval stages [...] adults, the Phyllophaga larvae or grubs look similar, with their key features being a whitish, milky-coloured body and reddish-brown head, measuring a [...] feeding again or when the larvae are fully grown a kind of earthern cell is created in the ground in which they pupate. The adult beetles emerge a few weeks

Orchid

an extremely large and diverse of flowering plants, the Orchidaceae or the orchid family . The plant’s flower are usually colourful and fragrant. Nowadays [...] orchids come in many different arrangements. Some only have a single flower, but most plants have a racemose inflorescence, which can consist of many flowers [...] flowers. The majority of orchids which are commercially sold is tropical or subtropical. There are varieties however that grow in colder climates.