• Lyprauta

  appearance of Lyprauta The adults of the three species can be distinguished by the wing pattern of adults. Adults of P. trinidadensis have a variation of dar [...] dark-coloured spot on their wings. The eggs of Lyprauta sp. are greyish-black and spherical. Larvae of Lyprauta sp. are a transparent greyish white and have a [...] start to rot internally. Just above the damaged area, the roots produce large numbers of new branches. This ultimately results in a reduced number of flower

• Encarsia formosa

  ly 75 cm under the plant head Avoid to hang cards at places exposed to direct sunlight The dosage of En-Strip or Enermix depends on climate, crop and whitefly [...] be better to switch to the use of Enermix or Ercal . Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy [...] larvae. The larvae feed on the internal tissues of the host, leading to its death and thereby contributing to the reduction of whitefly numbers. Encarsia

• Impatiens thrips

  development from egg to adult on the plant, specifically on the leaves. Eggs are deposited in the leaf tissue, while subsequent stages are found on the upper- and [...] having spread to many countries within the last 30 years. The thrips have mostly been able to spread as a consequence of the trade in foliage plants. Impatiens [...] a wide range of hosts. In addition to many ornamental plants it also attacks sweet pepper , cucumber and eggplants. It lives exclusively on the leaves and

• Common asparagus beetle

  rows of white or yellow spots. Eggs are oval and black to greenish brown and laid singly or in rows of 3 to 10 eggs, standing perpendicularly on the branches [...] host-specific pest of asparagus in most asparagus producing regions of the world. Damage symptoms Both adults and larvae feed on the leaves of asparagus. As [...] fluid, consisting of faecal material, which may contaminate the plant. Life cycle and appearance of Common asparagus beetle The life cycle of the asparagus

• Aphidius colemani

  causing aphids to drop from the leaf and fall to the ground. Although many aphids die as a result, many will survive and migrate to other plants to begin new [...] Aphipar Expand all items How to use Aphidius colemani The parasitic wasp is available in a bottle ( Aphipar ). Spread the material on rock wool slabs or in [...] for at least a few days The dosage of Aphipar depends on climate, crop and aphid density and should always be adjusted to the particular situation. Start

• Do you think you have Cannabis Pests?

  June 27, 2024

  not want it to spread or would like to ensure one does not develop, it is best to preventatively wrap “Reemay” on all plants in all stages of the crop. Then [...] telltale signs of pests, the damage they create, and how to properly control them. Quarantine The first step to a pest free facility is to quarantine your [...] major amount of webbing. This can quickly kill a plant due to the lack of photosynthesis. We use two different predatory mites for the control of Spider Mites

• Grey mould

  part of the foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions on pruning [...] In potted plants, the cuttings die due to carry-over infection from infected parent plants. Life cycle and appearance of Grey mould Spores of grey mould [...] grow into larger grey-brown lesions. The symptoms on fruits, flowers and on various parts of potted plants often only become visible during and after cold

• Mottled arum aphid

  Damage symptoms Large colonies of mottled arum aphids can greatly reduce plant vigour and kill the plant through sucking of plant sap. However, also at lower [...] damage plants because they produce large amounts of honeydew, which provides an excellent substrate for the growth of black sooty mould. Large areas of mould [...] an unattractive plant with a much lower market value. Neomyzus circumflexus can also transmit plant viruses. Life cycle and appearance of Mottled arum aphid

• Cutworms

  segetum . The larvae of these moths usually feed on roots and plant parts close to the ground, thereby often cutting the stems of young plants. This is where [...] larva often cuts one plant and quickly moves on to other plants and continues cutting. Therefore, relatively small populations of cutworms can destroy entire [...] hairs. The eggs are white at first but rapidly turn darker. They are laid separately or in batches on the ground, or on the plant close to ground level. The

• Fusarium wilt

  vessel system of the host plant and spreads upwards inside the plants. The other species are dispersed upwards on the outside of the plant. Most Fusarium [...] turn yellow and wilt, mostly on one side of the plant. Finally, the whole plant wilts. Other symptoms are brown discolouration of the xylem vessels which can [...] cycle, is similar to that of most Fusarium species. Fusarium overwinters for many years in the soil and on crop residues of infected plants as chlamydospores