• Breaking ground in SA for the macrobial control of stinkbug done by parasitic wasps

  August 1, 2022

  wasp that targets the eggs of various stinkbug species. The adult wasps lay eggs inside the stinkbug eggs. Trissolcus larvae feed on the stinkbug larvae [...] open in the field, preferably in the centre of the field, for wasps to exit. Alternatively, an open container could be carried throughout the field for [...] larvae inside the egg and pupate. The stinkbug eggs changes from a cream colour to black. The newly hatched Trissolcus wasp emerges from the stinkbug egg and

• Grapefruit

  sinensis ) and comes in many varieties. The most popular varieties today are the blood-red, pink and white pulp colours. The flavours vary from almost sweet to

• Orange

  fruit of various kinds of oranges, the fruit of the Citrus X sinensis is regarded as a sweet orange, while the fruit of the Citrus X aurantium is recognized [...] About The orange and in particular the sweet orange is the fruit that derives from the citrus species Citrus X sinensis that belongs to the family of Rutaceae [...] mandarin. The hybrid however is not a basic backcrossed BC1 hybrid, but the orange is actually hybridized over multiple generations. When it comes to the fruit

• Beneficial nematodes

  due to the bacterial infection. Feeding and reproduction: The nematodes feed on the multiplying bacteria and absorb the nutrients released by the bacterial [...] are essential for the nematode's parasitic strategy. The bacteria quickly multiply, causing septicemia (a lethal blood infection) in the host insect. Bacterial [...] nourishment for the nematodes and supports their reproduction. As the bacterial population within the host insect continues to grow, so do the nematode populations

• Miglyphus

  eggs next to them. The eggs develop into parasitic wasps inside the mine (but outside the leaf miner), using the dead larvae as food. Adult females also [...] in the morning or in the evening Dosage The dosage of Miglyphus depends on climate, crop and leaf miner density and should always be adjusted to the particular [...] as host feeding. Visual effect The presence of Diglyphus isaea in the crop is signalled by short mines that contain dead leaf miner larvae. Older larvae

• Cottony soft rot

  infects the stem base and the roots, whereas the ascospores infect the above-ground plant parts. In greenhouses, usually only mycelium is produced by the germinating [...] range of host plants. Damage symptoms The first symptoms of a cottony soft root ( Sclerotinia sclerotiorum ) infection are water-soaked lesions at the stem [...] germinating sclerotia. The fungus grows quite rapidly inside the plant and kills the host cells. On the infected plant tissue white, fluffy mycelium occurs

• Diglyphus isaea

  particularly the serpentine leafminer ( Liriomyza trifolii ). The female wasp deposits her eggs inside the larvae of the leafminer, where the emerging larvae [...] is blue-green. The full-grown larva usually pupates in the mine some distance from the dead host. Pupal stage: The pupa lies between the upper and lower [...] Diglyphus isaea The parasitic wasp Diglyphus isaea is available in a bottle ( Miglyphus ). Release parasitic wasps between the leaves of the crop in the morning

• Two-spotted spider mite

  to the host plant by feeding on plant sap. They mainly occur on the underside of leaves where they pierce the cells and suck out the contents. The empty [...] empty dead cells become yellow, and in many plants the damage can also be seen on the upper surface of leaves as small yellow dots. The destruction of cells [...] on the leaves affects the appearance of the crop. This is of particular concern in ornamental crops. Life cycle and appearance of Spider mite Two-spotted

• Entofood

  an alternative source of food for build-up and maintenance of Macrolophus pygmaeus populations in tomatoes in the beginning of the season and at low prey [...] place in the dark. Allow the bottles to acclimatise in the greenhouse before use, keep the lid closed, in order to prevent condensation and the formation [...] Nesidiocoris tenuis in the first weeks after release of the predatory bug until sufficient prey is present. Precautions Application of this product can cause

• Aphytis melinus

  points. Use the lid, the 8 strips of green paper, the cotton on the bottom and the jar itself. Make a homogeneous distribution throughout the plot. Release [...] more wasps in the areas of the field where scales are present. Release early in the morning or late in the afternoon. Release the same day the product is [...] ectoparasite: the female deposits one or more eggs beneath the scale cover and upon hatching, the larva proceeds to feed on the scale. The preferred hosts