• Sciarid flies

  feeding on the roots. The larvae feed mainly on decaying plant material and on algae and fungi present in the soil. They, however, can also feed on root hairs [...] Damage symptoms The larvae of sciarid flies feed mainly on organic remains and the fungi that grow on them, although some species can also eat living plant [...] rootlets, and tender root, stem and leaf tissue. Later instars may even feed on plant stems. The injuries caused by feeding also provide invasion routes for

• Trianum effectively controls Pythium in cucumber

  just ticking over. Those sorts of conditions have a bigger impact on the beneficials than on the thrips, which means I need to be alert. The same goes for [...] Thripex , in an overkill) keep thrips under control on the farm. Hendriks releases Montdorensis every week on half of his crop – the even rows one week, the [...] hangs a sheet of insect netting with Neoseiulus cucumeris every four weeks on one for every seven plants. The two predatory mites also keep spider mites

• Broad mite

  There are species that feed on fungi, algae, plants, as well as insect and mite predators and parasites. Those living on plants can cause considerable [...] mites ( Polyphagotarsonemus latus ) lay their eggs mainly on the underside of the leaf or on the fruit surface. The elongated, oval eggs are firmly attached [...] pale yellow or yellow-green, depending on the type and quantity of food consumed. Female mites have a white stripe on their backs.

• Aphids

  ( tobacco aphid ) on various vegetable and ornamental crops. Aphis gossypii ( cotton aphid ), mainly on Cucurbitaceae, but also on chrysanthemums, and [...] markings or stripes on their bodies. Movement: Aphids are slow-moving and tend to cluster on the undersides of leaves, where they feed on plant sap. They may [...] euphorbiae (potato aphid), mainly on Solanaceae and various ornamental crops. Aulacorthum solani (glasshouse potato aphid), mainly on Solanaceae and various ornamental

• Fall Armyworm

  host plant, depending on the crop, the stage of crop development, and the age of the larvae. On maize, young larvae usually feed on leaves, creating a c [...] They have a distinct white inverted Y-shaped mark on the front of the head and four large spots on the upper surface of the last segment. Pupae are reddish [...] it has been found in Africa too. The caterpillars of fall armyworms feed on the leaves, stems and reproductive parts of more than 100 plant species causing

• Parasitic wasps

  inside or on a host pest. Here's how it works: Egg laying: A female parasitic wasp seeks out a suitable host pest. The choice of host depends on the specific [...] control. They are called "parasitic" because they lay their eggs inside or on harmful pest insects. These parasitic wasp larvae then develop inside the [...] integrated pest management (IPM) strategies, growers can reduce their reliance on costly chemical pesticides. Consistency and long-term effectiveness : Parasitic

• RedStar places trust in Natutec Scout

  ease of use has been improved. Jan says the following on that: ‘I load the app, the map appears on the screen, and I can immediately see what whitefly or [...] Last year, Koppert asked him to test a number of improvements and report back on his findings. The scan function made more powerful This testing is ongoing [...] Jan’s point of view, it is not even about the exact number of whitefly stuck on the sticky traps. ‘No,’ he says, ‘I am more interested in seeing the trend

• Citrus thrips

  Damage and symptoms Citrus thrips larvae and adults feed on young leaves or fruit. They cannot survive on mature, hard foliage. They feed most often in narrow [...] is an important pest, it is unlikely to be on the fruit at harvest, so it’s not considered a quarantine risk on fresh fruit exports. We would like to acknowledge [...] Southern Africa, East Africa, Egypt and Yemen. Citrus thrips can survive on many different host plants but seem to be particularly attracted to those

• Mealybugs and scales

  mealybugs and scales Mealybugs and scale insects are persistent pests that feed on plant sap, weakening crops and producing honeydew that leads to sooty mould [...] healthy and marketable crops. Biological control of mealybugs and scales relies on natural enemies and monitoring tools that target different pest stages: Parasitic [...] cause by sucking plant sap, mealybugs and soft scales also produce honeydew (on which moulds grow) resulting in considerable damage in ornamental and fruit

• Tobacco whitefly

  Aleyrodidae , and the sub-family Aleyrodinae . This insect was first identified on tobacco in Greece in 1889, hence the name tabaci . It has subsequently been [...] although strictly spoken this is not true) and adult. The larvae are found on the underside of young leaves and have an oval shape. The first instar larvae [...] (crawlers) are mobile, whereas the rest of the larvae stadia remain flattened on the leaf. The fourth larva stadium develops into a yellow, almost circular