• May beetle

  of the plant, as the larvae only feed on root hairs and organic material during the first and second instars. When they move to the next stage, the larvae [...] ending in the death of the plant. From the third stage onwards, the impact of this pest increases. Damage symptoms Initial damage is not visible in the aerial [...] cause damage to crops, the most representative genus is the Phyllophaga . Given the external physical similarities between the adults and larvae of this

• Shore fly

  often in the vicinity of water. They feed on algae. Other shore fly species have diverse feeding habits but the larvae of most species feed on rotting material [...] feed on green algae. However, they can transmit plant diseases and can be a nuisance to greenhouse works by their sheer numbers. Frass deposited on leaves [...] sometimes this can occur on such a scale that growth, particularly of young cuttings, can be retarded. Life cycle and appearance of Shore fly The life cycle

• Pear rust mite

  What is pear rust mite? The pear rust mite (Epitrimerus pyri) is a microscopic, elongated, wedge-shaped eriophyid mite that feeds on leaves, shoots, and [...] invisible to the naked eye. While small populations cause negligible stress, heavy infestations under warm, dry weather favors population growth and can lead to [...] rapidly, and lay eggs that hatch into the summer generation. Population growth During peak summer, pear rust mites can complete a generation in as little

• Praon volucre

  of the label back onto the label Turn the lid until the small holes align with the opening The dosage of Aphiscout depends on climate, crop and aphid density [...] Expand all items How to use Praon volucre The parasitic wasp Praon volucre is available in a bottle ( Aphiscout ) Peel off the outer layer of the label starting [...] starting at the upper right corner Hang the cylinder horizontally from a crop wire, branch, or leaf stalk by winding the label around it and sticking the end of

• Green apple aphid

  s throughout the orchard. Autumn In autumn, sexual forms are produced, and females lay overwintering eggs on apple trees, completing the annual life cycle [...] is green apple aphid? The green apple aphid (Aphis pomi) is a common aphid species in apple orchards. Both nymphs and adults feed on young leaves and shoots [...] infestations can cause a range of symptoms, including: Curled and distorted young leaves Stunted or twisted shoot growth Sticky honeydew deposits on leaves and

• Dacnusa sibirica

  hole in the pupal cuticle with their jaws. The orientation of the wasp within the host pupa is the same as that of the leaf miner itself, the head of the [...] leaves of the crop in the morning or in the evening The dosage of Minusa depends on climate, crop and leaf miner density and should always be adjusted to the [...] jaws. The larvae of the parasitic wasp only reaches full development after pupation of the leaf miner larva. The adult parasitic wasps emerge from the leaf

• Enermix

  carefully inside the greenhouse Bend and tear off the strips opposite to the mounting hole Make sure not to touch the pupae during handling Suspend the cards in [...] necessary, the product can be stored for 1-2 days. Storage temperature 8-10°C/47-50°F. Storage conditions In the dark. Recommended for you Encarsia formosa [...] parasitised by Eretmocerus eremicus turn yellow, the adult parasitoid wasp can be seen clearly within the parasitised whitefly pupae shortly before it emerges

• Beetles

  pupal instar before reaching the adult stage. Larvae have biting mouthparts and mostly feed on the same food as the adults. The pupae do not make a cocoon [...] in other species also feed on leaves. Adult beetles cause damage by feeding on fruits, flower buds and leaves depending on the species. Life cycle of beetles [...] ladybirds contribute to the control of aphids . Beetles undergo a complete metamorphosis, that is, the larvae do not resemble the adult at all, and must

• Pear blossom weevil

  buds. The larvae feed within the buds over the winter and spring, preventing blossoms from opening and reducing fruit sets. Heavy infestations can significantly [...] activity As temperatures rise in spring, the overwintering larvae resume feeding inside the flower buds, destroying the developing floral tissues. No egg laying [...] symptoms of pear blossom weevil Pear blossom weevil infestations can be recognized by the following symptoms: Damaged or unopened flower buds Brown, dried

• Apple blossom weevil

  flower buds before sealing the opening. Development Larvae develop inside the flower buds, feeding on floral tissues and preventing the blossoms from opening [...] before flowering and feed on developing buds before laying eggs inside unopened flower buds. The larvae develop within the buds, preventing blossoms from [...] sheltered locations around the orchard. Spring activity As temperatures increase in early spring, adults become active and feed on swelling buds. Females lay