• Asian citrus psyllid

  through most of the southern states and Mexico however the state of Florida is the most affected area by the vectored disease. Damage symptoms The psyllid is [...] mature. Worst damage is done when the insect is vector of the bacterium Candidatus Liberibacter asiaticus that cause the fatal citrus disease called citrus [...] citrus psyllid Adult Asian citrus psyllids are mottled brown wings insects of about 25 to 35 mm long. The adults are active, jumping/flying insects and can

• Koppert: Key partner of Agadir Horticultural Complex in R&D

  December 12, 2022

  participated during the opening event. Among other dignitaries, the opening was attended by the Moroccan Minister of Agriculture and the Dutch Ambassador [...] delegation from the Netherlands. During the ceremony on Saturday, Koppert’s supervisory board member, Henri Oosthoek, spoke about the importance of strategic [...] ‘Through this complex, we are now well connected and positioned within the sector.’ Key partner in research and development The new centre will promote

• Leek moth

  posterior edge of the forewings. The hindwings are uniformly grey. The moth are active at night and rest during the day. Development time is temperature dependent [...] and garlic are also damaged. After hatching, the young larva explores the surface and mines the green leaves. On reaching the third instar, the larva penetrates [...] penetrates the young leaves, the flower stalk or the inflorescence of the host plant. Feeding on the leaf tissue by the caterpillars causes a reduction in

• Bacterial canker of tomato

  brown centre. In potato, the disease usually only occurs in the second half of the season. The first symptoms are wilting of the lower leaves and subsequent [...] strong efforts are used to prevent the bacterium from entering. When the occasional infection is found, strict measures are taken to eradicate the infection [...] expansion of the wilt upwards. Cutting the stem at the foot shows whitish ooze with bacteria in the case of C lavibacter infection, but other than that the disease

• Grey mould

  compounds that kill the plant cells and then uses the content of the plant cells as nutrients. On the infected area, new spores are formed within a few [...] remove dead leaves on the stem once, especially in the autumn, because from these leaves the stems are infected, possibly killing the entire plant maintain [...] cinerea ) is part of the foot rot complex, which causes rotting of the foot and may cause death of the plants. In cucumber and tomato the fungus causes lesions

• Olive fly

  on the top and sides of the thorax. The wings are transparent, with dark veins, positioned horizontally, and are held away from the body. Eggs are laid [...] as well. Damage symptoms The larvae (maggots) of the olive fruit fly feed inside the fruit, destroying the pulp and allowing the entry of secondary bacteria [...] hatching, the larvae immediately start to tunnel within the fruits. They are tiny and difficult to see. After they have been feeding for a while, they are easier

• Correct application crucial for effective vine weevil control

  July 20, 2016

  tissue from the host into substances that are easy for the nematodes to absorb. The larvae die within a few days. The population development of the nematodes [...] •Check the ends of the trickle irrigation hoses to verify that the nematodes are evenly distributed over the whole system. •If necessary, repeat the treatment [...] etc. Application of the nematodes is safe for the user and fast and effective, when applied in the right manner. After application, the parasitic nematodes

• Cyclamen mite

  than the females and their hind legs are modified and used to transport pharate females. Eggs of the cyclamen mite are about half the size of the adult [...] adult mite. They are oval in form, smooth, transparent and twice as long as they are wide. Both ends are equally rounded. The larvae are opaque white and have [...] on plant sap by penetrating the plant tissue with its piercing-sucking mouth parts. The mites are mostly found within the flower buds, growing tips and

• Extended season for nematode biocontrol with Entonem

  March 30, 2021

  from 5⁰C to 13⁰C within 24 hours, showed that the lower threshold is even lower than initially known. Verdun states that the lower threshold of 5°C is [...] tolerance matters ‘The Entonem label will further extend the range of pests for which this biocontrol solution can be applied. We are still researching [...] research into the efficacy of a range of nematode biocontrol products by Koppert Biological Systems has shown that one of its strain of the entomophathogenic

• Cabbage leafroller

  rest, the wings are held folded almost horizontally over the body. The antennae are thin and of medium length. The moths fly when it is dark. The yellow [...] colour. The ventral surface is lighter than the dorsal, with hairs located in warty spots that are lighter than the general body colour. In general, the caterpillar [...] appearance. In the fruit of sweet pepper, however, the caterpillars are much lighter and have dark lateral stripes. The caterpillars are relatively thin