• Shallot aphid

  and shallot, the aphids often occur at the end of the storage period causing malformation of new plants. Life cycle and appearance of The shallot aphid [...] females of the shallot aphid are 1.1-2.2 mm long and shiny brownish green to dirty yellow. Their legs and antennae are pale, apart from the ends of the antennae [...] antennae and the tarsi. The siphunculi are short an swollen towards the apex. The shallot aphid does not alternate to another host plant for overwintering

• May beetle

  and larvae of this genus, they are usually treated as a single group, sharing similar habits and biology. The larval stages of these beetles are harmful to [...] 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 [...] beetle The adults belonging to the majority of Phyllophaga species are very similar in terms of their external appearance. In short, the adults have a reddish-brown

• Macadamia

  genus of four species of trees. Three species of the genus are important for their fruit, the macadamia nut. The plant is native to Australia and is grown [...] grown commercially in a number of subtropical areas. Macadamia trees usually grow to a height of between 2-12 metres (or 7-40 feet). The macadamia trees have [...] About The macadamia plant (Macadamia integrifolia) belongs to the Proteaceae family, known for their richly flavoured edible seeds. The macadamia is a genus

• Onion fly season 2024: Growers limit damage with beneficial nematodes

  in the heart of the Noordoostpolder, the Koppert and Nemacontrol teams are taking stock of the growing season. The Noordoostpolder is known for the intensive [...] growers look back on a successful harvest and forward to a future where these pests are well-controlled. From the earliest signs of the onion and bean seed [...] accurately predict the timing of these flights, which is roughly the same each year. What surprised us was the high pest pressure so early in the season, especially

• Thripor-I

  Apply in groups of at least 50 insects in order to establish a population and encourage mating Make sure the material remains undisturbed at the introduction [...] mouthparts and suck out the contents. Visual effect Orius insidiosus sucks out the body contents of its prey leaving only the empty skin. Pack size 2,000 adults [...] for a few hours after application Dosage The dosage of Thripor-I depends on climate, crop and thrips density and should always be adjusted to the particular

• Horse-chestnut leaf miner

  build a true cocoon in the mine. The percentage of larvae which spin true cocoons increases in each of the subsequent generations. Adults of the first [...] may cover the entire surface of the leaflets, especially from July on, when the second and third generations develop. Trees with a low number of attacked [...] seem to affect the growth of mature trees. At sites where dead leaves containing overwintering pupae are not removed in the autumn, trees are usually totally

• Casea

  with a recirculation pump) Fill the spray tank with the required amount of water If tank mixing with a compatible product, add Casea at the end to a fully [...] Mode of action The nematodes enter the pest and release symbiotic bacteria into the pest's body cavity. These bacteria convert the host tissue into a food [...] Preparation Remove the sachets from the box and keep them at room temperature for 30 minutes Empty the contents of the sachets into a bucket containing

• Spodoptera cosmioides

  have a wingspan of approximately 40 mm. Females are brown with a white pattern on the forewings, while the hindwings are white. The males have yellow forewings [...] in the plants. The ideal temperature for their development varies from 22 to 30°C. At the start of development, the caterpillars are brown with a black [...] they become a darker brown colour. A darker tone is noted between the third pair of thoracic legs and the first pair of false abdominal legs. The glabrous

• Green peach aphid

  from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded giving rise to deformed leaves or, if the infestation [...] Green peach aphid damage Of all the aphids , the green peach aphid ( Myzus persicae subsp. persicae ) is the most important vector of viral diseases. It can [...] to extract large quantities of sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky

• Pea moth

  They are initially white and later turn yellow with dark dots at the base of the hairs and a brown head. The adults lay eggs on flowers or leaves of pea [...] entrance holes of the larvae are difficult to see. The caterpillar can damage up to four seeds in one pod. Damage only becomes obvious when plants are ripening [...] appearance of Pea moth The adults have a wingspan of 12-16 mm and olive brown forewings with black and white bands on the margins. The larvae measure 13-18