• Tobacco thrips

  leaves One of the earliest signs of a Thrips parvispinus infestation is the deformation of young shoots and leaves. As these thrips feed on plant tissue, [...] and finally the adult insect. The eggs are laid in leaves, flower petals, and the soft parts of stalks. They are inserted into the plant tissue with a [...] hidden. In greenhouses, Thrips parvispinus populations typically start to appear in the spring and peak in the autumn, with minimal presence in the winter

• Broad mite

  to the damage caused by viruses. The typical pattern of damage consists of malformation and distortion of the above-ground growth of the plant. The mites [...] Polyphagotarsonemus latus ), is the appearance of dark brown edges at the base of young leaves. In case of a mild infestation, one can often see brown [...] General The broad mite (Polyphagotarsonemus latus) occurs in the tropics and in greenhouses in temperate regions. The broad mite (Polyphagotarsonemus latus)

• Trichoderma harzianum

  defence mechanism of the parts of the plant above ground, the so-called induced systemic resistance (ISR). Trianum-G has the capacity to make certain 'fixed' [...] manganese and iron available for the plant to take up. Advantages of Trichoderma harzianum The usage of Trichoderma harzianum T-22 in sustainable agriculture and [...] This effect is stronger when the plant is under stress and/or cultivated under less than optimum growing conditions. Trianum-G also reinforces the defence

• Sciarid flies

  damage is the immediate result of larvae feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil [...] Pupation takes place in a small hole in the ground. Pupae are white, but later become yellow to brown. The posterior end of the pupa remains mobile. [...] Sciarid flies The life cycle of sciarid flies has the following stages: egg, four larval instars, a pupal instar, and the adult. The adult insects are 1 to 5

• Citrus mealybug

  defoliation. The overall effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but [...] secretion of the mealybugs, reduces the ornamental value of the affected plants. Fruit and flowers are also fouled, rendering them unfit for sale, and the reduced [...] reduced level of photosynthesis in the leaves also reduces flower and fruit production. In ornamental crops, the mere presence of mealybugs is sufficient

• Cut flowers

  bulbous plant that originates from Central and South America. It is a bulb plant from the large family of the Amaryllidaceae, the narcissus family. The Hippeastrum [...] greatly. Important types are: Rose: The rose belongs to the genus Rosa from the Rosaceae family. The flowers of the plant are also called rose. There are more [...] small compact shrubs. In recent decades, the Hydrangea has been grown as a cut flower in all sorts of colors and sizes. Hippeastrum is the Latin name for a

• Heterorhabditis bacteriophora

  killing the host within a few days. The nematodes then feed and reproduce within the cadaver of the dead host, resulting in the emergence of a new generation [...] nematodes enter the pest's body through natural openings. Once inside the pest, the nematodes release symbiotic bacteria, typically of the genus Photorhabdus [...] use them in direct sunlight The moisture content of the soil must be kept high for several days after application. When possible, irrigate the crop before

• Tomato

  About The tomato plant ( Solanum lycopersicum) belongs to the nightshade family of Solanaceae . The tomato is the edible fruit of this plant. The plant [...] perennials. The plants die every year in temperate climate, but in greenhouses they can sometimes sustain up to three years. A great number of tomato varieties [...] plant is 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

• Long-tailed mealybug

  length of the other filaments is roughly half the width of the body. The female is 3 - 4 mm long. Reproduction in Pseudococcus longispinus , may be sexual or [...] occurs naturally in tropical and sub-tropical regions, but these days it is widespread throughout the world. The range of host plants of Pseudococcus longispinus [...] defoliation. The overall effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but

• Transeius montdorensis

  mites multiply in the sachet and disperse into the crop over a period of several weeks. Hang sachets in sheltered locations in the crop, avoid hanging [...] feed on pollen, which is useful, for instance, in sweet pepper crops, as the predatory mite can establish in the crop before the pest appears. Transeius [...] on the underside of leaves. They are oval, white and have a diameter of approximately 0.14 mm. The larvae have six legs, are the same colour as the eggs