• Don Sanchez Fresh innovates with biological control in avocados

  number of pests such as thrips , brown spiders, crystalline spiders, worms and ants, as well as root diseases that cause a reduction in the yield of avocado [...] maintained a close relationship that has allowed them to go one step further. Pest and disease control in avocado trees In avocado production there are a number [...] reason, integrated pest and disease management is essential. This approach combines a series of methods such as monitoring, cultural practices, biological

• Pear psylla

  General The pear psylla, Cacopsylla pyri , is a widely distributed pest of pear in central Europe and can inflict serious damage in pear orchards. Damage [...] hatch after about 3 weeks. There are 5 nymphal instars which feed on twigs and shoots. Depending on the temperature, there are 3 or more generations per [...] often grow on the honeydew covering shoots, leaves and developing fruits with a sticky black layer. Life cycle and appearance of Pear psylla Adults pear psyllas

• Municipality Enschede: Entonem nematodes against oak processionary caterpillar

  Entonem in locations where we find a range of unusual butterflies and moths. As we only do this at an early stage, there is no secondary effect on other c [...] municipality’s built-up area has a total of 22,000 oak trees. In the past, the municipality only extracted the nests. But as Petra Klein Breukink explains [...] explains, it was not enough. She is the project manager of the oak processionary caterpillar for the Municipality of Enschede. ‘We use Koppert’s nematode product

• Aphidius colemani

  wings, and is black with dark brown legs. A female has a more pointed abdomen that is as long as the wings, is equipped with an ovipositor, and is black, with [...] an aphid is parasitized in a younger stage there will be no reproduction. A male wasp has slightly longer antennae, a rounded abdomen that is shorter than [...] development is complete the larva spins a cocoon inside the aphid cuticle, causing it to swell. The cuticle turns from a hard, leathery brown to a golden yellow

• Aphids

  aphids are known as apterous, and winged adults as alate. Alate aphids have two pairs of wings, one of which is much larger than the other. For a large part [...] aphid population consists of viviparous females. As reproduction is asexual, the progeny of a single female is genetically identical to the mother. In other [...] other words, they are clones. Because there is no genetic recombination, different characteristics, such as colour forms, or resistance to pesticides, remain

• Broad mite

  brown stripes forming a fine network on the leaves. In case of a more serious infestation, this network becomes so dense that there is no more green tissue [...] latus) are not a serious problem, as they are unable to overwinter. Mites belonging to the family of tarsonemids ( Tarsonemidae ) display a greater diversity [...] feeding habits than any other mite family. There are species that feed on fungi, algae, plants, as well as insect and mite predators and parasites. Those

• Orchid

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

• Apple

  of the apple is protected by a layer of epicuticular wax. Apples usually have a yellowish-white coloured exocarp. Sometimes their flesh is also pink or [...] tics. Ripe apples usually have a red, yellow, green, pink, or russetted coloured skin. Additionally there exists also a wide range of bi- or tri-colored [...] mistake) is best known for the apple, the tree’s usually sweet and pomaceous fruit. Apples originate from Asia and Europe and were grown there for thousands

• European red mite

  General As the name implies, the European red mite, Panonychus ulmi , is mainly a pest of fruit trees (apple, pear, plum and cherry). However, it can attack [...] attack a large scale of other woody plants and is occasionally a problem on roses and other ornamentals of the family Rosaceae grown in greenhouses. It [...] when these coalesce the leaves loose colour; this is often referred to as bronzing. When infestation is heavy, leaves can drop. Life cycle and appearance

• Downy mildew of Cucurbits

  germination free water is required. For most downy mildews, the optimum temperature is around 15 o C and the closer the temperature is to this, the shorter [...] after a while new spore-bearing structures are protruding from the stomata. Because there are more stomata on the underside of the leaf, this is where [...] General Pseudoperonospora cubensis is a plant pathogen causing downy mildew on cucurbit crops like cucumber, cantaloupe, pumpkin, watermelon and squash