• Oleander scale

  symptoms Scale infestation can be seen by the appearance of the scale armour on stems, leaves and fruits of hosts. Infestations on the leaves and stems may cause [...] photosynthetic area of the plants, leading to lower yield. Damage to fruit occurs in heavy infestations, where spotting and often deformity of fruits affects [...] seen as green spots on purple fruits. Damage to foliage is particularly important in ornamentals . Heavy infestation can lead to yellowing, leaf and shoot

• Cut flowers

  substrate differ greatly. Important types are: Rose: The rose belongs to the genus Rosa from the Rosaceae family. The flowers of the plant are also called [...] graceful funnel-shaped hybrids, descended from a number of freesias. Lily : Lilium is a genus of herbaceous flowering plants. Most lilies originate from [...] called rose. There are more than a hundred species and thousands of different cultivars. Hydrangea, or Hydrangea , has its origins in Asia and North and South

• Poster - Recognizing stink bugs

  pest damaging many important food crops. Nezara viridula goes through five nymphal instars. Eggs are laid on the under surface of leaves. The egg package

• Laeveld_Agrochem_GROEI_20_-_Winter_2022.pdf

  potassium salt of silicic acid. This is a highly One of the most efficient ways of applying silica to plants is in the form of soluble form of silicon which [...] to the end of the harvesting process (Figure 1). It is noticeable that roots are important sources of carbohydrates in blueberry plants of various crop [...] and fruit quality. Start of harvest. Two weeks after the start of harvest. Four weeks after the start of harvest. End of harvest. Figure 4: Sugar levels

• Macrocheles robustulus

  insects. The mites appear in and on the soil and at the base of plant stems. Feeding behaviour of Macrocheles robustulus Predatory mites pierce their prey [...] used for the control of the following pests: Sciarid flies (fungus gnats) Thrips Lyprauta larvae The predatory mites feed on larvae of sciarid flies , thrips [...] Macrocheles robustulus is a species of predatory mite known for its role in biological pest control , particularly in agricultural and horticultural settings

• Two-spotted spider mite

  leaves affects the appearance of the crop. This is of particular concern in ornamental crops. Life cycle and appearance of Spider mite Two-spotted spider [...] ( Tetranychus urticae ) is a pest of many crops throughout the world. Despite their small size, they are capable of very rapidly doing severe damage, due [...] species worldwide and many of them are major crop pests. The two-spotted spider mite ( Tetranychus urticae ) is by far the most important species in greenhouses

• Natupol Fly

  Crops Crops of the Crucifer, Composite, Umbellifer and Lily family. Mode of action The flies search for nectar in the flower and thus come into contact [...] temperature of 20-25°C untill the first flies start to hatch. Pupae can then be released in the crop Dosage Adjust the quantity in relation to the number of flowers [...] pupae per m² per week. It is important to start introducing the first pupae the week prior to blossom since pupae need a couple of days to hatch. Please check

• Cyclamen mite

  Flowers and young fruits become brown near the base. Life cycle and appearance of Cyclamen mite The life cycle of the cyclamen mite ( Phytonemus pallidus ) [...] ornamentals . Mites belonging to the family of tarsonemids ( Tarsonemidae ) display a greater diversity of feeding habits than any other mite family. There [...] modified and used to transport pharate females. Eggs of the cyclamen mite are about half the size of the adult mite. They are oval in form, smooth, transparent

• Citrus thrips

  that are responsible for most of the feeding damage, this stage can last 4-6 days. The larva will move towards the shady area of the tree to pupate, if a suitable [...] most often in narrow crevices created by folds in leaves or under the calyx of a fruit due to their thigmotactic behaviour. Damage around the calyx appears [...] become brown when exposed to the sun later in the season. Severe scarring of fruit can occur up to 13 weeks after petal fall, after which the damage appears

• Spider mites and other mites

  Biological control of spider mites and other mites uses a range of natural enemies that target different developmental stages of the pest: Predatory mites [...] on the leaves affect the appearance of the crop. This is of particular concern in ornamental crops. Life cycle of spider mites Spider mite control videos [...] are capable of causing severe damage very rapidly due to their great reproductive capacity. There are more than 1200 species worldwide, many of them are common