• Asian citrus psyllid

  disease is spread when adults fly to a healthy plant and injects bacteria into it as they feed. The disease can kill a citrus tree in as little as five [...] citri ), is an important pest of citrus in several countries as it is a vector of a serious citrus disease called greening disease or Huanglongbing. It is [...] vectored disease. Damage symptoms The psyllid is a sucking insect that inserts its mouthparts into plant tissue to feed. Adults feed on young stems and on leaves

• Tomato leafminer

  Mining by the caterpillar causes malformations. Damage to fruit allows fungal diseases to enter, leading to rotting fruit before or after harvest. Life cycle [...] fruit. Pupation takes place in the soil or on the surface of a leaf, in a curled leaf or in a mine. If they leave the mines they build silk cocoons on the [...] General The tomato leaf miner (Tuta absoluta), a major pest of field- and greenhouse-grown tomatoes, belongs to the family of Gelechiidae . It is oligophagous

• Guava

  pulp varies from off-white to bright pink, and is between 4 to 12 cm in length. The taste ranges from tart to very sweet. [...] and subtropical regions. A vivid yellow or green on the outside, Psidium guaiava, is the fruit of the Myrtle family (Myrtaceae) – a smallish tree. The pulp

• IPM app

  disease management has always been a great challenge in agriculture. A healthy crop is paramount, while there is also a growing demand for sustainable food [...] uploaded from the field. Koppert iPM scouting software helps to reduce costs for pesticides, due to a highly accurate insight into pesticide efficacy and optimized [...] increased pesticide restrictions. Scouting is a significant part of pest management which can assist the grower to make timely decisions and apply precision

• Grapes

  of this plant and is actually a berry. Grapes are consumed fresh and they are processed to make wine or juice and dried to produce raisins. Nowadays there [...] 000 varieties of Vitis vinifera grapes, but only a few play an important commercial role when it comes to the production of wine, but also table grapes. [...] About The common grape vine ( Vitis vinifera ) is a species of Vitis . The plant comes originally from the Mediterranean region, central Europe and so

• Potato aphid

  Plant sap is rich in sugars, but has a low protein content. Aphids therefore need to extract large quantities of sap to get sufficient protein. The excess [...] but is these days distributed throughout the world. It is a highly polyphagous species with a preference for Solanaceae (particularly potato), but has also [...] and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation occurs early

• Tobacco whitefly

  symptoms The larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and [...] development of fruit and lead to a reduction in yield. The honeydew deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth of sooty [...] return to the underside of the leaves. The adult tobacco whitefly ( Bemisia tabaci ) has well-developed piercing-sucking mouthparts and begins to feed on

• Click beetles

  skinned. They are up to 25 mm long and usually shiny yellowish brown or light brown with a darker head. Larval development takes 4 to 5 years. When fully [...] yellowish brown to black. The eggs are laid in May or June in groups in the soil. They hatch about one month later and the larvae start to feed on roots [...] General Click beetles are elongate beetles with a hard exoskeleton, with the head deeply retracted into the thorax. When disturbed they lie on their back

• Spotted Wing Drosophila

  females by a large dark spot on each wing, where their common name is derived from. Females have a strong saw-like ovipositor that is used to penetrate [...] respiration tubes extend from the fruit but are difficult to see. Larval feeding in the fruit leads to fruit tissue collapse. Even if the fruits have not collapsed [...] exposes fruits to secondary pathogens (e.g. bacteria, fungi and yeasts). Finally, deterioration of fruit can increase its susceptibility to attack by other

• Woolly apple aphid

  Eriosoma lanigerum , is a serious worldwide apple pest. It is probably of North American origin and has been distributed to other parts of the world mainly [...] aphid does little direct harm to mature trees but the sticky masses of “wool” may contaminate leaves and fruits and can be a nuisance at harvest time. Life [...] and appearance of Woolly apple aphid In contrast to other aphids , the life cycle and survival from year to year of the woolly aphid depends entirely on wingless