• A life-long commitment to help growers thrive with sustainable growing practice

  December 10, 2024

  crops sustainably. It’s a journey I’ve been on since 1998. Transforming perspectives on biocontrol In the early days of her career, Rianne often faced resistance [...] shares. "Working at Koppert allows me to carry on his legacy. I’m passionate about educating growers on how natural methods, like predatory mites , enable [...] possibly explain to our children and grandchildren that we once sprayed poison on the food we eat and the flowers in our homes?" Rianne asks with a frown. For

• V10

  become established within the tomato plant without causing damaging symptoms. This presence interferes with the ability of virulent PepMV strains to successfully [...] thaw the product After thawing, keep product refrigerated and apply within 3 days Do not refreeze. Expiration date: 6 months after date of Manufacture

• Cannabis aphid

  loss of this vital fluid. The following damage symptoms may be observed when plants are infested with Phorodon cannabis : Excess sap is excreted on leaves [...] the days shorten in late summer/early autumn, winged males and sexually-reproducing females are produced. After mating, the female lays her eggs on leaves [...] aphid or hemp aphid) is a very new pest to North America. It was first seen on cuttings originating from Colorado in 2016 and is now widespread throughout

• Quad

  of sun on days with temperatures above 25°C). Storage time after receipt To guarantee the best pollination results, start using the hive on the day of arrival [...] hives can be placed 4-7 days before the crop flowers Position the Quad hives evenly througout the plot. The best position is on a horizontal platform just [...] crop and depends on environmental conditions. Always consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy

• The Spread of Whitefly

  August 14, 2020

  some time on plants with hardy leaves. Eggs can even survive temperatures below freezing (more than fifteen days at -3°C/26.6°F and five days at -6°C/21 [...] first stage. The adult insects prefer to lay their eggs on young leaves well inside the plant, and this is where you tend to find the eggs and young larvae [...] The females lay their eggs on the underside of the leaves, just the same. Adult insects can spread by flying or simply on the wind. While the greenhouse

• Grape downy mildew

  to visible symptoms) ranges from 4 to 21 days, depending on temperature; the most rapid development occurs on young foliage at optimal temperatures of [...] e, characteristic ‘oil spots’ on the upper surface of young, actively growing leaves, followed by downy white growth on the underside, are typical early [...] early symptoms. Because visible symptoms usually appear 7–10 days post-infection (depending on temperature and humidity), the disease is often well-established

• Spidex: dos and don’ts in a nutshell

  November 29, 2021

  largely depends on how you use Spidex . Take the following tips on board, and you can be assured of an optimal result. Dos Keep an eye on things so that [...] Spidex at just the right time. You should ideally use Spidex on the day that you receive it. If that’s not possible, make sure to store it in a cool and [...] the product for longer than three days! Do you know how to use Spidex in your crop? You can see the instructions on YouTube . Turn and shake the packaging

• Spidex Vital: Your Vital partner in spider mite control

  more impact on spider mite control! It all started with Spidex ( Phytoseiulus persimilis ) at Koppert more than 50 years ago. From day one this predatory [...] color will gradually change to the characteristic red-orange color. This takes 1-2 days. After introduction of “white” Spidex Vital it therefore is a clear [...] fine-tuning, Spidex is now delivered in a new formulation; with a greater impact on spider mite control: Spidex Vital Born to fight Spidex Vital predatory mites

• Bacterial wilt, brown rot

  adventitious roots on the stem. The vascular stem tissue is coloured brown and when the stem is cut, bacterial slime oozes from the wound. This is the way to [...] in the tubers becomes grey-brown and the tuber eyes also turn grey-brown. This disease can be distinguished from Clavibacter by the bacterial slime produced [...] youngest leaves are affected first. They show signs of wilting during the day which may disappear in the early stages of infection. Under conditions favourable

• Atheta

  A single Atheta coriaria will typically consume between 10-20 prey per day. This predator when stressed or disturbed exhibit their trademark ‘upward curving’ [...] Atheta takes about 21 days (at about 70°C). The sex ratio will typically be equal, 1:1 females to males. Eggs hatch in 3-4 days to begin their larval stages [...] Population will fluctuate throughout the growing season, depending in large par on the prey population density. Appearance Atheta coriaria are typically light