• Gummy stem blight

  How to prevent Gummy stem blight Before cropping: Remove all crop debris and disinfect the greenhouse Choose a cultivar that is less susceptible to internal [...] Silicon and/or Calcium nutrition hardens the cell walls and makes it harder for the fungi to enter the leaves Pick flowers within two days after opening in [...] cucumber, the most important symptom is internal fruit rot, which can only be recognized from the outside by the small narrowing of the tip of the mature

• Pea leaf miner

  vegetable and ornamental crops. It originates from South and Middle America and has subsequently spread via plant material. It is now wide-spread across the [...] the world. This species can be particularly damaging to leaf vegetables and causes problems especially in lettuce grown on open ground. Damage symptoms [...] miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf tissue, leading to desiccation, premature

• Zucchini

  fruit (that can be yellow, dark green or light green) belonging to the cucumber family. It is also referred to as marrow or summer squash and it is eaten as [...] vegetable. Together with a number of other varieties of squash and pumpkin, it belongs to the species of Cucurbita pepo . This species grows in tropical regions [...] especially in Africa and South America. In addition, the courgette is very easy to grow in areas with a temperate climate. In the Netherlands, courgettes are

• Maximize pollination in tomato

  two days. When the number of bite marks diminishes to only one or two per flower, it is advisable to introduce a new bumblebee hive. Temperature and humidity [...] can impede fruit setting. Maintaining plant health To maximize pollination success, it is essential to prioritize the health of your tomato plants. Various [...] bumblebees and humans, it is crucial to position the hive in a visible location. This allows both the bumblebees and people to easily identify and access

• Eretmocerus eremicus

  should be repeated at least 3 times at weekly intervals or until control is achieved. Depending on the specific situation, it may be better to switch to [...] after two to three days, and hatches when the whitefly reaches its fourth instar. The larva then penetrates the host, moulting to the second instar to feed [...] their specialized mouthparts to feed on the internal tissues of the whitefly, leading to the host’s death and contributing to a decline in whitefly populations

• Carnation tortrix

  Petals may be joined by larval silk, thus hampering opening and giving flowers a characteristic swollen appearance. In some cases, it may not be apparent [...] Cacoecimorpha pronubana ) is a Mediterranean species belonging to the family of Tortricidae . It occurs in the Middle East, North Africa, the USA, Europe, including [...] Madeira. It is polyphagous, observed on 160 cultivated and wild plant species – trees as well as herbaceous forms - of 42 plant families, and it is the major

• Towards a chemical-free future in agriculture: The vision of grower Koen

  the opportunity to continue the business. While the trend towards organic farming was growing, Koen felt that it would be too quick to completely abandon [...] is prepared to fully transition to biological crop protection when the government decides that certain traditional methods can no longer be applied. "10 [...] abandon traditional methods. He decided to find a balance between both approaches. This way of working allows him to gain experience in using biological crop

• Anagyrus vladimiri

  produce males. Prior to oviposition, the female parasitic wasp examines the host with its antennae for several seconds, then turns its caudal end towards [...] Citripar depends on climate, crop and mealybug density and should always be adjusted to the particular situation. Start introduction preventively or as soon [...] vladimiri lays its eggs inside the body of the mealybug. Upon hatching, the larvae feed on the internal tissues of the mealybug, gradually consuming it from within

• Aphelinus abdominalis

  dry and at its introduction site for a few days The dosage of Aphilin depends on climate, crop and aphid density and should always be adjusted to the particular [...] aphid, she will examine it briefly with the tips of the antennae. She turns herself around, curls up the wing tips, and will try to pierce the aphid in the [...] on which the aphid’s antennae and cornicles can still be recognised. The Aphelinus mummy may be distinguished from the mummies of Aphidius species by their

• Spotted Wing Drosophila

  exposes fruits to secondary pathogens (e.g. bacteria, fungi and yeasts). Finally, deterioration of fruit can increase its susceptibility to attack by other [...] 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 [...] blueberries, strawberries) and stone fruits (e.g. cherries, plums) being particularly susceptible to infestation. Life cycle and appearance of Spotted wing drosophila