• Diamond back moth

  suggested to have its origin in Europe, South Africa or East Asia, but is now present wherever its cruciferous hosts exist and it is considered to be the most [...] General The diamond back moth (Plutella xylostella) belongs to the family of Plutellidae . It only attacks Brassicaceae species, including cruciferous weeds [...] universally distributed lepidopteran species. It is highly migratory and wind-borne adults can travel long distances to invade crops in other regions. Damage symptoms

• Persea mite

  Depending on temperature, the life cycle from egg to adult can be completed in as little as two to three weeks, resulting in multiple overlapping generations [...] a key pest in avocado production worldwide. It lives and feeds on the undersides of avocado leaves, where it forms small webbed feeding colonies that cause [...] cases, extensive damage leads to leaf yellowing, premature leaf drop, and canopy thinning, which can expose fruit and branches to sunburn and ultimately reduce

• Leek

  used to identify various species of leek, but now they are all classified as cultivars of Allium ampeloprasum . The part of the plant that can be eaten [...] actually a bundle of leaf sheaths. This bundle is blanched by putting soil around it (so-called ‘trenching’). The plant is usually sold as a small seedling and [...] in the soil. Once outside, the plant is rather hardy and many varieties can be left in the soil during winter and harvested when there is a need for them

• Precautionary measures for product allergies

  Just as you can be allergic to cats, pollen, and dust mites, it is also possible to be allergic to the natural substances in predatory mites , feeder mites [...] contact, or could take years to appear. Not everyone who is exposed to allergens will develop an allergy. It is difficult to determine in practice which [...] that can be taken to prevent possible allergic reactions. Exposure and precautionary measures Depending on the way in which you are exposed to the substances

• Tobacco whitefly

  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 [...] throughout the world. It causes damage in (sub-)tropical areas especially. The tobacco whitefly ( Bemisia tabaci ) is feared because of its high level of resistance [...] resistance to many insecticides and its propensity for the transmission of viruses. Damage symptoms The larvae of whitefly need a lot of protein for growth

• Greenhouse whitefly

  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 [...] species from different families serve as suitable hosts for this whitefly. It occurs on many crops, including aubergine, beans, cucumber, sweet pepper, [...] larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking out the sap from the plant leaves and secreting

• Phytoseiulus persimilis

  will become cannibalistic. If new hot spots of spider mites appear, it may be necessary to reintroduce predatory mites. Life cycle of Phytoseiulus persimilis [...] top, to avoid damaging the predatory mites The dosage of Spidex Vital Plus depends on climate, crop and pest density and should always be adjusted to the [...] smaller prey stages. The larvae do not eat. They develop quickly to protonymph and then start to feed on spider mites. The quantity of prey consumed depends

• Carrot

  carota , indigenous to Europe and southwestern Asia. The carrot plant presumably comes from Persia and was originally produced for its seeds and leaves. [...] vegetable and comes in a variety of colours, ranging from the regular orange to black and purple, but also red, yellow and white. The carrots which are produced [...] Carrots can be classified as hardy biennials and are grown as annuals. Carrots can vary greatly in colour, shape and size. The shorter carrot types grow

• Neoseiulus californicus

  n Can also be applied with (Mini)-Air(o)bug The dosage of Spical depends on climate, crop and pest density and should always be adjusted to the particular [...] Neoseiulus californicus is a selective predator of Tetranychid mites, i.e. it prefers to feed on spider mites but can also feed and survive on other prey, including [...] transparent to white in colour and are deposited on the underside of the leaves. They are smaller than those of Phytoseiulus persimilis but similar to eggs of

• American serpentine leaf miner

  serpentine leaf miner (Liriomyza trifolii) eats its way outwards from its egg, so that its mines join to form small plates. In various other crops one finds [...] hard to distinguish from feeding spots. The larvae of Liriomyza trifolii are entirely ochre-yellow. When the larva hatches from the egg, it begins to eat [...] 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