• Tomato russet mite

  time in Australia and is a pest in tomatoes in all areas where they are grown. Other members of the plant family Solanaceae may be affected to a lesser [...] Affected stems turn a rusty brown colour, and in serious cases they may snap. The fruit can also be affected, and when this happens in tomatoes, the skin [...] Vasates destructor and Phyllocoptes destructor in older publications) belongs to the family Eriophyidae. It does not produce galls but lives freely (vagrant)

• Large blackberry aphid

  two species. The large blackberry aphid is widely distributed in Europe and also established in New Zealand. It only feeds on cultivated and wild blackberries [...] blackberry aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction [...] siphunculi. The cauda is short and triangular. The aphids overwinter as eggs on blackberry plants. After emerging in spring, the aphids mainly feed on the underside

• Large raspberry aphid

  large raspberry aphid, Amphorophora idaei, is the most important aphid species found on raspberries in Europe. It only feeds on raspberry. Damage symptoms [...] life cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with [...] major problem is the spreading of various raspberry viruses by the aphids. Life cycle and appearance of Large raspberry aphid Aphids have a complex life

• Phytophthora: symptoms starting to show

  April 7, 2021

  pressure. When plants are going through this generative transition or have a high fruit load in relation to the root capacity, then any susceptibility is exposed [...] to manage the symptoms. What triggers the ‘fall out’? Root diseases are opportunists. In many cases, the latent population is waiting for the opportunity [...] eliminate root diseases, but what we can do is look to keep an active, functioning root system, which supports any plants with a latent infection, and reduces

• Macrolophus pygmaeus

  whiteflies, it also eats aphids , spider mites , moth eggs and small caterpillars , as well as the larvae of leaf miners . When the bug is present in a crop in [...] segment is black, and a black stripe runs behind the eyes. The first part of the forewings is a transparent, soft green with a small black spot in the middle [...] well, it is insufficient for full development of a population. When females are only able to feed on plant sap, they lay far fewer eggs and the nymphs (if

• Tobacco aphid

  aphid Aphids have a complex life cycle, with both winged and wingless forms of adults and a great variety in colour. When reproduction is asexual, the young [...] ) probably evolved from the peach potato aphid in the Far East and is a key pest of tobacco crops in both the United States and South America. The tobacco [...] tobacco aphid ( Myzus persicae subsp. nicotianae ) is also encountered in a range of crops in greenhouses, such as sweet pepper, aubergine, chrysanthemum

• Horse-chestnut leaf miner

  horse-chestnut in Greece, Albania and Macedonia. It was first observed attacking ornamental horse-chestnut trees in Macedonia in the 1970s, from where it spread [...] 5 mm in the firsts instar up to 3.5 mm in the fourth instar. The pupa is brown and is 2.9-4.5 mm long. The horse-chestnut leaf miner overwinters in the [...] the pupal stage in a cocoon in dead leaves. The emergence of adults in spring occurs in April and May, depending on climatic conditions. After mating, each

• Caterpillars

  more about What are caterpillars? Caterpillars are the larvae of butterflies and moths. Butterflies and moths form the order Lepidoptera, a very large [...] most harmful caterpillars that occur in greenhouses belong to the Noctuidae (the noctuid or owl moths), which is the largest of all lepidopteran families [...] The caterpillars mostly pupate in the ground. Another family containing several species that damage greenhouse crops is the leafroller family, the Tortricidae

• Licence permits release of Koppert Swirski Mite® in polytunnels in England

  January 6, 2021

  tunnels, with a high degree of efficiency and accuracy.” The Natutec Drive® is a patented system, attached to a custom-made vehicle, which is driven between [...] Mite® in polythene tunnels in England Koppert can announce the launch of a suite of products aimed at improving the robustness of IPM programmes in strawberry [...] nts is the acquisition of a new release licence for Swirski Mite®, issued by DEFRA in November 2020. Until now, Swirski Mite® has been licensed in England

• Maximize pollination in tomato

  clustering more than three hives together. It is important to position the hives in such a way that the hive exits point in different directions, away from the [...] pollination activity. A single visit by a bumblebee is typically sufficient for successful pollination. Fruit setting occurs once a flower has been adequately [...] least once every two days. When the number of bite marks diminishes to only one or two per flower, it is advisable to introduce a new bumblebee hive. Temperature