• Yellow rose aphid

  ornamental crops. At the same time, photosynthesis in the leaves is reduced, affecting production. The yellow rose aphid is also a vector of several viruses [...] reaching adulthood. With each moult they shed white skin, betraying their presence in the crop. The yellow rose aphid is holocyclic in North America (i.e [...] they mate in autumn and produce eggs to overwinter). It is also holocyclic in parts of Europe, whereas throughout most of the world it is anholocyclic

• Natupol Smart

  introduction Clean the hive stand before placing new hives Disposal After the pollination cycle, once there is no life in the bumblebee colonies, the ‘Beehome’ [...] be closed. Remove the plastic liner and the sugar water tank from the hive, then place the liner back inside. Seal the entire hive in a plastic bag, remove [...] After introduction of the hive, worker bumblebees start pollinating the flowers while at the same time collecting pollen to feed the brood. More workers

• Cabbage root fly

  2 mm in size and white in colour. The larvae are white or whitish-yellow, 7-10 mm in size, legless, with a wreath of appendages at the end of the body [...] wildflowers of the cabbage family. The adult individual measures about 6 mm, is grey in colour with black bristles and colourless wings. The elongated eggs are [...] What is cabbage root fly? The cabbage root fly, also known as the cabbage fly, ( Delia radicum ) is a common pest most often found in crops and wildflowers

• European vine moth

  further 1-2 generations may be completed in the same season. The pupae overwinter in a cocoon under bark, in cracks of supporting posts or other shelters [...] General The European vine moth ( Lobesia botrana ), is an serious pest of grapevine in central and southern Europe. It is also present in parts of Africa [...] Adults appear in late April or early May. The eggs are laid mainly on flower buds and hatch in about a week. The larvae then attack the flower buds and

• Amblyseius andersoni

  often in the axil of veins. They are oval, white and are approximately 0.14 mm in diameter. The larvae have six legs, are the same colour as the eggs, [...] transparent white. Adults are about 0.5 mm in size. Predatory mites are usually found on the lower surface of the leaves, often in the corner of the main vein [...] sachets The predatory mite Amblyseius andersoni is also available in breeding sachets ( Anso-Mite Plus ). In this case the predatory mites multiply in the

• Glasshouse potato aphid

  deformations in the growing tip of the plant. Precisely where the plant is pierced is unimportant. The piercing of the lower leaves in the crop can cause [...] adulthood. With each moult they shed white skin, betraying their presence in the crop. The wingless adult stage of the greenhouse potato aphid is rather squat [...] growth above with lumpy leaves and curled leaf margins. The immediate effects of piercing by the aphids are visible in lower leaves in the form of yellow

• Aphytis melinus

  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 received [...] 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 [...] parasitic wasp is greatest around 25ºC. The lower temperature limit for its development is 13ºC and the upper limit is 38ºC. Behaviour of the parasitic wasp

• Optimizing bumblebee hive schedules in winter

  specifically positioned above the ends of the plant rows. This ensures consistent pollination across the entire crop area, especially in longer rows where pollination [...] bumblebees must pollinate the same number of flowers in a much shorter time frame. Consequently, an increased number of bumblebee hives is required to compensate [...] shorter daylight conditions, it is crucial to implement a gradual increase in hive density: • Open flowers: Pollination is only possible when flowers are

• Beet armyworm

  es for the growth of the crop. With a substantial population of caterpillars, the damage can spread to the stems, and in the worst cases to the fruit. [...] plants. In both the greenhouse and the field, it is a major pest of sweet pepper. Damage symptoms Older caterpillars migrate to the top of the plant where [...] even black. The colour and pattern of the caterpillars is highly variable and depends partly on the host plant, the stage of development and the climate.

• Potato aphid

  adulthood. With each moult they shed white skin, betraying their presence in the crop. The adult potato aphid is a large, slender aphid with long, green [...] running along the dorsal surface. In green individuals, this stripe is dark green, while in pink specimens it is dark red. This longitudinal stripe is specifically [...] General The potato aphid ( Macrosiphum euphorbiae ) is of North American origin, but is these days distributed throughout the world. It is a highly polyphagous