• Root and crown rot of strawberry

  growth is retarded and rooting is poor. Transplants look weak and may die. It is hard to visually distinguish between Pestalotiopsis clavispora and Phytophthora [...] temperatures and water levels in rootzone Avoid overhead irrigation, since it seems to increase disease development Provide balanced nutrition Avoid damage

• Velvetbean caterpillar

  species affecting the soya bean crop. Its season of occurrence is correlated with the latitude where the crops are located; it has been observed that at lower [...] the back and four pairs of abdominal legs, as well as a terminal pair. It loops as it crawls and is often confused with the small Soybean looper caterpillar [...] greyish-brown. It has a characteristic line that runs diagonally across both wings. In conditions of high infestation or food shortages, its colour darkens

• European mole cricket

  in the US. It lives mainly in the ground where it feeds on soil invertebrates (e.g. earthworms and insect larvae) and on plant roots. It is usually of [...] problem if it occurs in large numbers. Gryllotalpa gryllotalpa is classified as endangered or threatened in several European countries where it is now protected [...] yellowish brown, stout body, covered with a velvet-like coating of fine hairs. It has short forewings and large, elongate hindwings, which are rolled longitudinally

• Brown root rot, corky root rot

  lycopersici is a fungal plant pathogen, infecting tomatoes and aubergine. It causes brown root rot and corky root rot. Damage symptoms The first signs [...] cracks. No discoloration is present in the xylem tissues which distinguishes it from wilts caused by Verticillium or Fusarium . Progressive disease causes

• Biodiversity counts at Koppert

  January 26, 2023

  biodiversity so that it can continue to provide growers with a growing range of biological solutions from nature itself. We cannot do it alone There is strength [...] important to Koppert? Modern agriculture has a great impact on biodiversity and its decline. Our work brings us daily evidence of how conventional production [...] the world’s agricultural practices is key to bringing back our biodiversity. It is this indisputable knowledge that has led us to accept our responsibility

• Tomato pinworm

  pinworm mainly attacks tomato, but it can also survive in other Solanaceae species, especially eggplant and potato. It is frequently confused with similar [...] that might be present, with which it shares similar habits. Due to the initial damage of the larva which forms a mine, it can be confused with the eggplant [...] ic is their mottled brown colouration. At 25°C, it survives for about a week, but in cooler places it can live up to 3 weeks.

• Pierce's disease of grapevine

  fastidiosa is a gram-negative bacterium which is limited to xylem tissue. It has many hosts, many of which show minor or no symptoms. More and more plant [...] is best known in grapevine, stone fruit (peach and plum) and citrus, where it causes diseases such as Pierce's disease of grapevines, phony peach disease [...] leaf scald, citrus variegated chlorosis and quick decline syndrome. Recently, it is becoming more problematic in olive. Damage symptoms Grapevines: Primary

• Foot rot of cereals

  health and yield. Microdochium nivale thrives in cool, moist conditions, making it particularly problematic in temperate regions. Damage symptoms M. nivale is [...] can also occur. Foot rot becomes obvious from late stem extension onwards. It results in dark-brown staining of the lower nodes. Long dark streaks may also

• Charcoal rot

  phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very wide range of host crops, many of which are economically important [...] temperatures above 32 °C and dry conditions. In field crops in temperate regions it is therefore not a problem. How to prevent Charcoal rot Plant in fields with

• Angular leaf spot

  forms on the underside of the leaf. This exudate changes to a white film when it dries. Lesions may merge as they grow and later also become visible on the [...] humidity or presence of water. These conditions occur mostly in the spring if it rains or when sprinkler irrigation is used. Healthy, well growing plants are